# B–Ti system

> B–Ti system: 207 accepted literature values (crystal structure 95, invariant reaction 59, formation 33, phase equilibrium 10) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/B-TI.html · Markdown: https://data.orchid-project.org/systems/B-TI.md

207 accepted literature values from 7 paper(s) (experimental 64, model 53, DFT 19, unspecified 71); 0 calculated phase diagram(s). 11 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: [JSON](https://data.orchid-project.org/literature/systems/B-TI.json) · [CSV](https://data.orchid-project.org/systems/B-TI.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#B-TI) · [phases (10)](https://data.orchid-project.org/phases/pages/B-TI.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/B-TI.html) · [Markdown](https://data.orchid-project.org/systems/B-TI.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 64 |
| model | 53 |
| DFT | 19 |
| unspecified | 71 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 59 |
| phase transition | 6 |
| phase equilibrium | 10 |
| formation | 33 |
| heat capacity / entropy / enthalpy | 4 |
| crystal structure | 95 |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/B/B-TI.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/B/B-TI.json) · [CALPHAD hull TiB-04Ma](https://data.orchid-project.org/hulls/calphad-sgte/B/B-TI--TiB-04Ma.json) · [CALPHAD hull TiB-08Wit](https://data.orchid-project.org/hulls/calphad-sgte/B/B-TI--TiB-08Wit.json) · [CALPHAD hull TiB-09Nak](https://data.orchid-project.org/hulls/calphad-sgte/B/B-TI--TiB-09Nak.json) · [CALPHAD hull TiB-11Cac](https://data.orchid-project.org/hulls/calphad-sgte/B/B-TI--TiB-11Cac.json) · [CALPHAD hull TiB-16Wit](https://data.orchid-project.org/hulls/calphad-sgte/B/B-TI--TiB-16Wit.json) · [CALPHAD hull TiB-94Bat-LB](https://data.orchid-project.org/hulls/calphad-sgte/B/B-TI--TiB-94Bat-LB.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the B–Ti system (59)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 3498 | congruent melting: L \<-> TiB2 | L: B 0.667; TiB2: B 0.667 | model | [1] Witusiewicz 2008; _cites Ma 2004_ [doi](https://doi.org/10.1016/j.jallcom.2003.09.017) | Table 6, p. 6, row 27; `ORC-MQEHT4C44K` |  |
| 3498 | congruent melting: L \<-> TiB2 | L: B 0.667; TiB2: B 0.667 | model | [1] Witusiewicz 2008; _cites Murray 1987_ | Table 6, p. 6, row 26; `ORC-PDIKFFQLVZ` |  |
| 3498 | congruent melting: L \<-> TiB2 | TiB2: B 0.663 | experimental | [1] Witusiewicz 2008; _cites Rudy 1969_ | Table 6, p. 6, row 20; `ORC-PKBZVKPSRU` |  |
| 3498 | congruent melting: L \<-> TiB2 | L: B 0.666667, Ti 0.333333; TiB2: B 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Holleck 1986_ | Table 6, p. 6, row 25; `ORC-W57SBZCRYQ` |  |
| 3490 | congruent melting: B2Ti -> Liquid | B2Ti: Ti 0.333; Liquid: Ti 0.333 | model | [2] (ed.) 1998 | Table I, p. 147, row 6; `ORC-N222FSP67S` |  |
| 3476 | congruent melting: L \<-> TiB2 | L: B 0.667; TiB2: B 0.667 | model | [1] Witusiewicz 2008 | Table 6, p. 6, row 28; `ORC-P5GQANJPCI` |  |
| 3193 | congruent melting: L \<-> TiB2 | L: B 0.666667, Ti 0.333333; TiB2: B 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Schwarzkopf 1953_ | Table 6, p. 6, row 24; `ORC-4JGCTSJDML` |  |
| 3173 | congruent melting: L \<-> TiB2 | L: B 0.666667, Ti 0.333333; TiB2: B 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Kieffer 1952_ [doi](https://doi.org/10.1002/zaac.19522680308) | Table 6, p. 6, row 22; `ORC-25QNNHFKQE` |  |
| 3153 | congruent melting: L \<-> TiB2 | TiB2: B 0.67 | experimental | [1] Witusiewicz 2008; _cites Fenish 1964_ | Table 6, p. 6, row 19; `ORC-33YOVZ3TK2` |  |
| 3123 | congruent melting: L \<-> TiB2 | L: B 0.666667, Ti 0.333333; TiB2: B 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Lskoldsky 1957_ | Table 6, p. 6, row 21; `ORC-ICJYT2IKJR` |  |
| 3063 | congruent melting: L \<-> TiB2 | L: B 0.666667, Ti 0.333333; TiB2: B 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Glaser 1952_ | Table 6, p. 6, row 23; `ORC-LOP4OR6AYB` |  |
| 2477 | peritectic: L + TiB2 \<-> Ti3B4 | L: B 0.419; TiB2: B 0.65; Ti3B4: B 0.571 | model | [1] Witusiewicz 2008; _cites Ma 2004_ [doi](https://doi.org/10.1016/j.jallcom.2003.09.017) | Table 6, p. 6, row 9; `ORC-GFZ3GSGKOL` |  |
| 2477 | peritectic: Liquid + TiB2 -> Ti3B4 | L: B 0.419; TiB2: B 0.65; Ti3B4: B 0.571 | model | [3] Ma 2004 | Table 5, p. 7, row 2; `ORC-GGM7LL3VIK` |  |
| 2474 | peritectic: Liquid + B2Ti -> B4Ti3 | Liquid: Ti 0.578; B2Ti: Ti 0.333; B4Ti3: Ti 0.428 | model | [2] (ed.) 1998 | Table I, p. 147, row 2; `ORC-C7BJ7WW5LT` |  |
| 2473 | peritectic: L + TiB2 \<-> Ti3B4 | L: B 0.42; TiB2: B 0.655; Ti3B4: B 0.581 | model | [1] Witusiewicz 2008; _cites Murray 1987_ | Table 6, p. 6, row 8; `ORC-YAIOQFBTPK` |  |
| 2472.15 | peritectic: L + TiB2 -> Ti3B4 | L: B 0.377; TiB2: B 0.667; Ti3B4: B 0.571 | model | [4] Cacciamani 2011 | Table 3, p. 6, row 2; `ORC-DZJTLI77IA` |  |
| 2472 | peritectic: L + TiB2 -> Ti3B4 | L: Ti 0.623; TiB2: Ti 0.334; Ti3B4: Ti 0.429 | model | [5] Bittermann 1997; _cites Baetzner 1994_ | Table 4, p. 5, row 2; `ORC-U7VLRAAOIH` |  |
| 2463 | peritectic: L + TiB2 \<-> TiB | TiB2: B 0.666667, Ti 0.333333; TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Rudy 1969_ | Table 6, p. 6, row 6; `ORC-OYILOTAXQN` |  |
| 2457.15 | peritectic: L + Ti3B4 -> TiB | L: B 0.373; Ti3B4: B 0.571; TiB: B 0.5 | model | [4] Cacciamani 2011 | Table 3, p. 6, row 3; `ORC-KPNPJJZQ47` |  |
| 2457 | peritectic: L + Ti3B4 -> TiB | L: Ti 0.626; Ti3B4: Ti 0.429; TiB: Ti 0.5 | model | [5] Bittermann 1997; _cites Baetzner 1994_ | Table 4, p. 5, row 3; `ORC-DOUSGBD4LM` |  |
| 2456 | peritectic: Liquid + B4Ti3 -> BTi | Liquid: Ti 0.627; B4Ti3: Ti 0.428; BTi: Ti 0.5 | model | [2] (ed.) 1998 | Table I, p. 147, row 3; `ORC-4ZRVW336DQ` |  |
| 2453 | peritectic: L + Ti3B4 \<-> TiB | L: B 0.413; Ti3B4: B 0.571; TiB: B 0.5 | model | [1] Witusiewicz 2008; _cites Ma 2004_ [doi](https://doi.org/10.1016/j.jallcom.2003.09.017) | Table 6, p. 6, row 17; `ORC-2D7XI3RRKH` |  |
| 2453 | peritectic: L + Ti3B4 \<-> TiB | L: B 0.39; Ti3B4: B 0.581; TiB: B 0.5 | model | [1] Witusiewicz 2008; _cites Murray 1987_ | Table 6, p. 6, row 16; `ORC-CW2YJRS5E5` |  |
| 2453 | peritectic: Liquid + Ti3B4 -> TiB | L: B 0.413; Ti3B4: B 0.571; TiB: B 0.5 | model | [3] Ma 2004 | Table 5, p. 7, row 3; `ORC-TAEIUNA2DG` |  |
| 2414 | peritectic: L + TiB2 \<-> Ti3B4 | L: B 0.317; TiB2: B 0.659; Ti3B4: B 0.571 | model | [1] Witusiewicz 2008 | Table 6, p. 6, row 10; `ORC-SX7KTEROUP` |  |
| 2393 | peritectic: L + Ti3B4 \<-> TiB | Ti3B4: B 0.571429, Ti 0.428571; TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008 | Table 6, p. 6, row 15; `ORC-CAHDYLRJXV` |  |
| 2390 | peritectic: L + Ti3B4 \<-> TiB | L: B 0.309; Ti3B4: B 0.571; TiB: B 0.497 | model | [1] Witusiewicz 2008 | Table 6, p. 6, row 18; `ORC-OWWYCDULPV` |  |
| 2353 | eutectic: L \<-> TiB2 + (β-B) | L: B 0.98; TiB2: B 0.667; (β-B): B 1 | model | [1] Witusiewicz 2008; _cites Murray 1987_ | Table 6, p. 6, row 30; `ORC-4TPGYSVW6O` |  |
| 2353 | eutectic: L \<-> TiB2 + (β-B) | TiB2: B 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Rudy 1969_ | Table 6, p. 6, row 29; `ORC-DK54V7KAGA` |  |
| 2353 | eutectic: liquid ↔ TiB2 + (␤B) |  | experimental | [3] Ma 2004; _cites Rudy 1966_ | p. 3; `ORC-Y5F7YX5KEU` | “Rudy and Windisch \[9\] reported the eutectic reaction, liquid ↔ TiB2 + (␤B) at 2353±20 K, with the eutectic composition more than 98 at.% B.” |
| 2334 | eutectic: L \<-> TiB2 + (β-B) | L: B 0.985; TiB2: B 0.668; (β-B): B 1 | model | [1] Witusiewicz 2008 | Table 6, p. 6, row 32; `ORC-KGVTEOSX4S` |  |
| 2333.15 | eutectic: L -> B + TiB2 | L: B 0.982; B: B 1; TiB2: B 0.667 | model | [4] Cacciamani 2011 | Table 3, p. 6, row 4; `ORC-KW2EOWYLRS` |  |
| 2333 | eutectic: L -> TiB2 + βB | L: Ti 0.019; TiB2: Ti 0.334; βB: Ti 0 | model | [5] Bittermann 1997; _cites Baetzner 1994_ | Table 4, p. 5, row 5; `ORC-42WCLELNCJ` |  |
| 2333 | peritectic: L + Ti3B4 \<-> TiB | Ti3B4: B 0.571429, Ti 0.428571; TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Ogden 1951_ | Table 6, p. 6, row 11; `ORC-UKNKPZ5UHR` |  |
| 2332.5 | eutectic: Liquid -> β-rhombo-B + B2Ti | Liquid: Ti 0.019; β-rhombo-B: Ti 0; B2Ti: Ti 0.333 | model | [2] (ed.) 1998 | Table I, p. 147, row 1; `ORC-L5VSYS27K3` |  |
| 2330 | eutectic: Liquid -> TiB2 + (βB) | L: B 0.975; TiB2: B 0.676; (βB): B 1 | model | [3] Ma 2004 | Table 5, p. 7, row 4; `ORC-AFHUTN5U4Z` |  |
| 2330 | eutectic: L \<-> TiB2 + (β-B) | L: B 0.975; TiB2: B 0.676; (β-B): B 1 | model | [1] Witusiewicz 2008; _cites Ma 2004_ [doi](https://doi.org/10.1016/j.jallcom.2003.09.017) | Table 6, p. 6, row 31; `ORC-WBGB3PX4R5` |  |
| 2293 | peritectic: L + TiB2 \<-> Ti3B4 | TiB2: B 0.666667, Ti 0.333333; Ti3B4: B 0.571429, Ti 0.428571 | experimental | [1] Witusiewicz 2008; _cites Fenish 1964_ | Table 6, p. 6, row 7; `ORC-IS5RPICR7P` |  |
| 2273 | peritectic: L + Ti3B4 \<-> TiB | Ti3B4: B 0.5714; TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Fenish 1964_ | Table 6, p. 6, row 14; `ORC-SXQMOMGQWS` |  |
| 2174 | peritectic: L + Ti3B4 \<-> TiB | Ti3B4: B 0.571429, Ti 0.428571; TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Schwarzkopf 1953_ | Table 6, p. 6, row 12; `ORC-EF5LSAVOAU` |  |
| 1943 | eutectic: L \<-> bcc + TiB | TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Palty 1954_ | Table 6, p. 6, row 35; `ORC-NRCB47PCJI` |  |
| 1814.15 | eutectic: L -> TiB + bcc-Ti | L: B 0.069; TiB: B 0.5; bcc-Ti: B 0.002 | model | [4] Cacciamani 2011 | Table 3, p. 6, row 5; `ORC-TK5LYJCDZO` |  |
| 1814.1 | eutectic: Liquid -> BTi + bcc-A2 | Liquid: Ti 0.931; BTi: Ti 0.5; bcc-A2: Ti 0.997 | model | [2] (ed.) 1998 | Table I, p. 147, row 4; `ORC-HGXJ5ZDVCY` |  |
| 1814 | eutectic: L -> βTi + TiB | L: Ti 0.9313; βTi: Ti 0.9978; TiB: Ti 0.5 | model | [5] Bittermann 1997; _cites Baetzner 1994_ | Table 4, p. 5, row 7; `ORC-REKL4KVSH4` |  |
| 1813 | eutectic: L \<-> bcc + TiB | L: B 0.07; TiB: B 0.5 | model | [1] Witusiewicz 2008; _cites Murray 1987_ | Table 6, p. 6, row 37; `ORC-ALI2YCQAIP` |  |
| 1813 | eutectic: L \<-> bcc + TiB | L: B 0.07; TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Rudy 1969_ | Table 6, p. 6, row 33; `ORC-NJF5ER3KKK` |  |
| 1805 | eutectic: L \<-> bcc + TiB | L: B 0.075; bcc: B 0.008; TiB: B 0.483 | model | [1] Witusiewicz 2008; _cites Ma 2004_ [doi](https://doi.org/10.1016/j.jallcom.2003.09.017) | Table 6, p. 6, row 38; `ORC-KE2WVGAPHJ` |  |
| 1805 | eutectic: Liquid -> (βTi) + TiB | L: B 0.075; (βTi): B 0.008; TiB: B 0.483 | model | [3] Ma 2004 | Table 5, p. 7, row 5; `ORC-WLLZ5PWUTG` |  |
| 1803 | eutectic: L \<-> bcc + TiB | TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Fenish 1964_ | Table 6, p. 6, row 34; `ORC-BANVNWY2EB` |  |
| 1781 | eutectic: L \<-> bcc + TiB | L: B 0.073; bcc: B 0.005; TiB: B 0.49 | model | [1] Witusiewicz 2008 | Table 6, p. 6, row 39; `ORC-WNG2MAKXHD` |  |
| 1777 | eutectic: L \<-> bcc + TiB | TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008 | Table 6, p. 6, row 36; `ORC-5UJV4BXONB` |  |
| 1159 | peritectoid: bcc + TiB \<-> hcp | TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Palty 1954_ | Table 6, p. 6, row 1; `ORC-LIXF5LBSJP` |  |
| 1158 | peritectoid: bcc + TiB \<-> hcp | TiB: B 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008 | Table 6, p. 6, row 2; `ORC-3RBCBPC6ZE` |  |
| 1156.1 | other: bcc-A2 -> BTi + hcp-A3 | bcc-A2: Ti 0.998; BTi: Ti 0.5; hcp-A3: Ti 1 | model | [2] (ed.) 1998 | Table I, p. 147, row 5; `ORC-IDWMQK5KLM` |  |
| 1156 | peritectoid: bcc + TiB \<-> hcp | bcc: B 5.000e-4; TiB: B 0.483; hcp: B 9.000e-4 | model | [1] Witusiewicz 2008; _cites Ma 2004_ [doi](https://doi.org/10.1016/j.jallcom.2003.09.017) | Table 6, p. 6, row 3; `ORC-ABXFLBGJCD` |  |
| 1156 | peritectoid: βTi + TiB -> αTi | βTi: Ti 0.9987; TiB: Ti 0.5; αTi: Ti 0.9983 | model | [5] Bittermann 1997; _cites Baetzner 1994_ | Table 4, p. 5, row 8; `ORC-EM5ENIXYJV` |  |
| 1156 | peritectoid: bcc + TiB \<-> hcp | bcc: B 1.000e-4; TiB: B 0.489; hcp: B 3.000e-4 | model | [1] Witusiewicz 2008 | Table 6, p. 6, row 4; `ORC-MZSKJJBUT3` |  |
| 1156 | peritectoid: (βTi) + TiB -> (αTi) | (βTi): B 4.900e-4; TiB: B 0.483; (αTi): B 9.290e-4 | model | [3] Ma 2004 | Table 5, p. 7, row 6; `ORC-RQ4UYYDJGO` |  |
| 1152.15 | peritectoid: βTi + TiB -> αTi | βTi: B 0.001; TiB: B 0.5; αTi: B 0 | model | [6] Duschanek 1995; _cites Baetzner 1994_ | Table 1, p. 3, row 12; `ORC-47F4BEXU3V` |  |

## Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from [dft_parity.json](https://data.orchid-project.org/literature/dft_parity.json).

Table: Enthalpies of formation, B–Ti system (33)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| Ti3B4 |  | -94.3 kJ/mol (basis unstated) |  | model |  |  | [7] Nakama 2009; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.02.030) | Table 3, p. 6, row 4; `ORC-KVRM7NJ4EW.340254` |  |
| Ti3B4 |  | -85.5 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 3; `ORC-XE5WL7KQBS.58c4fe` |  |
| TiB |  | -160.247 kJ/mol (basis unstated) | 298.15 | experimental |  |  | [3] Ma 2004; _cites Schissel 1962_ [doi](https://doi.org/10.1021/j100814a027) | Table 3, p. 4, row 5; `ORC-ZTR7ID22BV.05fe67` |  |
| TiB |  | -83 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 1; `ORC-4POSDLSGAJ.844407` |  |
| TiB |  | -83 kJ/mol-atom | 0 | DFT |  |  | [7] Nakama 2009 | Table 4, p. 7, row 28; `ORC-N3YFVM7YFG.9eacc9` |  |
| TiB |  | -82.9 kJ/mol-atom | 0 | DFT |  |  | [7] Nakama 2009 | Table 4, p. 7, row 26; `ORC-3M5ZMARNTY.1756d8` |  |
| TiB |  | -82.7 kJ/mol-atom | 0 | DFT |  |  | [7] Nakama 2009 | Table 4, p. 7, row 25; `ORC-IA7FZJZHY3.0fd3bc` |  |
| TiB | [TiB](https://data.orchid-project.org/compounds/TiB.html) | -82.5 kJ/mol-atom |  | model | -80.281 (mp-aaaaalqf) | -82.177 (oqmd-28621) | [7] Nakama 2009; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.02.030) | Table 4, p. 7, row 29; `ORC-S2SIA7TXDA.4e3392` |  |
| TiB |  | -82.5 kJ/mol (basis unstated) |  | model |  |  | [7] Nakama 2009; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.02.030) | Table 3, p. 6, row 2; `ORC-W35PXIC447.61e21d` |  |
| TiB |  | -82 kJ/mol-atom | 0 | DFT |  |  | [7] Nakama 2009 | Table 4, p. 7, row 24; `ORC-3RAC37UJEL.3de74e` |  |
| TiB |  | -80.1 kJ/mol-atom | 0 | DFT |  |  | [7] Nakama 2009 | Table 4, p. 7, row 23; `ORC-Y75WZBY7HI.9d5adc` |  |
| TiB |  | -78.7 kJ/mol-atom | 0 | DFT |  |  | [7] Nakama 2009 | Table 4, p. 7, row 21; `ORC-GSTJZW4TCT.1b308d` |  |
| TiB | [TiB](https://data.orchid-project.org/compounds/TiB.html) | -69.3 kJ/mol-atom |  | model | -80.281 (mp-aaaaalqf) | -82.177 (oqmd-28621) | [7] Nakama 2009; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.02.030) | Table 4, p. 7, row 22; `ORC-4JLAHREL2Q.f9232e` |  |
| TiB2 |  | -323.8 kJ/mol (basis unstated) | 298.15 | experimental |  |  | [3] Ma 2004; _cites Guzman 1995_ [doi](https://doi.org/10.1016/0042-207x%2895%2900080-1) | Table 3, p. 4, row 8; `ORC-QPG6PXYTBW.13beb3` |  |
| TiB2 |  | -319.788 kJ/mol (basis unstated) | 298.15 | experimental |  |  | [3] Ma 2004; _cites Akhachinskij 1975_ | Table 3, p. 4, row 12; `ORC-HNJGZWKT7M.4f020f` |  |
| TiB2 |  | -314.754 kJ/mol (basis unstated) ± 17.556 | 298.15 | experimental |  |  | [3] Ma 2004; _cites Yurick 1980_ | Table 3, p. 4, row 6; `ORC-UTFN4L7VVT.88d3de` |  |
| TiB2 |  | -305.34 kJ/mol (basis unstated) ± 6.72 | 298.15 | experimental |  |  | [3] Ma 2004; _cites Yurick 1980_ | Table 3, p. 4, row 7; `ORC-QAIEJY5PLE.87500e` |  |
| TiB2 |  | -300.96 kJ/mol (basis unstated) | 298.15 | experimental |  |  | [3] Ma 2004; _cites Schissel 1959_ | Table 3, p. 4, row 13; `ORC-QPEG3L2UE6.826383` |  |
| TiB2 |  | -298.2 kJ/mol (basis unstated) | 298.15 | experimental |  |  | [3] Ma 2004; _cites Brewer 1955_ [doi](https://doi.org/10.1149/1.2430108) | Table 3, p. 4, row 9; `ORC-GDEHMERE2N.5ceeec` |  |
| TiB2 |  | -292.6 kJ/mol (basis unstated) | 298.15 | experimental |  |  | [3] Ma 2004; _cites Williams 1961_ [doi](https://doi.org/10.1021/j100829a025) | Table 3, p. 4, row 11; `ORC-LRSVCUE2OP.0741f6` |  |
| TiB2 |  | -217.32 kJ/mol (basis unstated) | 298.15 | experimental |  |  | [3] Ma 2004; _cites Schissel 1962_ [doi](https://doi.org/10.1021/j100814a027) | Table 3, p. 4, row 10; `ORC-GFIVUOES6R.43fb3d` |  |
| TiB2 |  | -109.7 kJ/mol (basis unstated) |  | model |  |  | [7] Nakama 2009; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.02.030) | Table 3, p. 6, row 10; `ORC-KY5I2XDXKX.14565f` |  |
| TiB2 |  | -105.2 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 9; `ORC-UB7DRKET3L.371556` |  |
| TiB2 |  | -83.1 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 8; `ORC-UI5E6TR7KM.1ef761` |  |
| TiB2 |  | -78.9 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 11; `ORC-LTAEBAXAWN.5f65c5` |  |
| TiB2 |  | -68.7 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 12; `ORC-UU5R7M4IN3.9997ab` |  |
| TiB2 |  | -68.2 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 7; `ORC-4ULIDESGEF.1b9e6e` |  |
| TiB2 |  | -56.6 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 13; `ORC-PKGEULRMEB.314450` |  |
| TiB2 |  | -46.4 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 14; `ORC-JLUPVVRQUU.ecc2a4` |  |
| TiB2 |  | -32.1 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 6; `ORC-YGN43ZTDKN.e65f5a` |  |
| TiB2 |  | -21.7 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 15; `ORC-OAP5KRTSD6.2f3b9b` |  |
| TiB2 |  | 35 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 5; `ORC-56Q6CELU3R.5c5328` |  |
| TiB2 |  | 68.1 kJ/mol (basis unstated) | 0 | DFT |  |  | [7] Nakama 2009 | Table 3, p. 6, row 16; `ORC-MSD3PBGDPM.ac36b6` |  |

## Other properties

### Phase transition (6)

Table: Phase transition, B–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1943 K | 1943 | congruent melting: Liquid -> (βTi); _(βTi): B 0_ | model | [3] Ma 2004 | Table 5, p. 7, row 7; `ORC-KL6NQNPBTT` |  |
| Phase transition | 2348 K | 2348 | congruent melting: L -> βB; _L: Ti 0; βB: Ti 0_ | model | [5] Bittermann 1997; _cites Baetzner 1994_ | Table 4, p. 5, row 4; `ORC-EYHLNJVFNL` |  |
| Phase transition | 2353 K | 2353 | eutectic: liquid ↔ TiB2 + (βB); _alloy: B 0.98, Ti 0.02_ | experimental | [3] Ma 2004; _cites Rudy 1966_ | Table 1, p. 2, row 24; `ORC-5II4PLRXME` |  |
| Phase transition | 3489 K | 3489 | congruent melting: L -> TiB2; _L: Ti 0.334; TiB2: Ti 0.334_ | model | [5] Bittermann 1997; _cites Baetzner 1994_ | Table 4, p. 5, row 1; `ORC-XVZJYKJ2MT` |  |
| Phase transition | 3489.15 K | 3489.15 | congruent melting: L -> TiB2; _L: B 0.667; TiB2: B 0.667_ | model | [4] Cacciamani 2011 | Table 3, p. 6, row 1; `ORC-VX4QRMO3OB` |  |
| Phase transition | 3498 K | 3498 | congruent melting: Liquid -> TiB2; _L: B 0.667; TiB2: B 0.667_ | model | [3] Ma 2004 | Table 5, p. 7, row 1; `ORC-3DUUGLJTM6` |  |

### Phase equilibrium (10)

Table: Phase equilibrium, B–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase composition |  | 2173 | congruent melting: Melting point of TiB; _liquid: Ti 0.5; TiB: Ti 0.5_ | experimental | [3] Ma 2004; _cites Schwarzkopf 1953_ | Table 1, p. 2, row 7; `ORC-ER4ODVK5JM` |  |
| Phase composition |  | 2333 | congruent melting: Melting point of TiB; _liquid: Ti 0.5; TiB: Ti 0.5_ | experimental | [3] Ma 2004; _cites Palty 1954_ | Table 1, p. 2, row 6; `ORC-4QAT3NK4DC` |  |
| Phase composition |  | 2463 | congruent melting: Melting point of TiB; _liquid: Ti 0.5; TiB: Ti 0.5_ | experimental | [3] Ma 2004; _cites Rudy 1966_ | Table 1, p. 2, row 5; `ORC-5X3B3Y67K7` |  |
| Phase composition |  | 3063 | congruent melting: Melting point of TiB2; _liquid: Ti 0.333333; TiB2: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Glaser 1952_ | Table 1, p. 2, row 18; `ORC-LDUS7XGPB4` |  |
| Phase composition |  | 3123 | congruent melting: Melting point of TiB2; _liquid: Ti 0.333333; TiB2: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Lskoldsky 1957_ | Table 1, p. 2, row 16; `ORC-RHRR37SEZQ` |  |
| Phase composition |  | 3153 (>) | congruent melting: Melting point of TiB2; _liquid: Ti 0.333333; TiB2: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Fenish 1964_ | Table 1, p. 2, row 14; `ORC-ENFZ7P4NPY` |  |
| Phase composition |  | 3173 | congruent melting: Melting point of TiB2; _liquid: Ti 0.333333; TiB2: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Kieffer 1952_ [doi](https://doi.org/10.1002/zaac.19522680308) | Table 1, p. 2, row 17; `ORC-3ZQQLMXFFV` |  |
| Phase composition |  | 3193 | congruent melting: Melting point of TiB2; _liquid: Ti 0.333333; TiB2: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Schwarzkopf 1953_ | Table 1, p. 2, row 19; `ORC-77U6NDPHI6` |  |
| Phase composition |  | 3498 | congruent melting: Melting point of TiB2; _liquid: Ti 0.333333; TiB2: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Holleck 1986_ [doi](https://doi.org/10.1116/1.573700) | Table 1, p. 2, row 20; `ORC-U2AIX5LVGN` |  |
| Phase composition |  | 3498 | congruent melting: Melting point of TiB2; _liquid: Ti 0.333333; TiB2: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Rudy 1966_ | Table 1, p. 2, row 15; `ORC-YMGYSBGMWO` |  |

### Heat capacity / entropy / enthalpy (4)

Table: Heat capacity / entropy / enthalpy, B–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy; _printed: S298 K_ | 34.7 unknown ± 6.3 | 298.15 | TiB; _alloy: Ti 0.5_ | experimental | [3] Ma 2004; _cites Schissel 1962_ [doi](https://doi.org/10.1021/j100814a027) | Table 3, p. 4, row 1; `ORC-GIMQX257AO.0ff16d` |  |
| Entropy; _printed: S298 K_ | 23.1 unknown ± 8.4 | 298.15 | TiB2; _alloy: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Yurick 1980_ | Table 3, p. 4, row 2; `ORC-DDEQWOOAO5.9992d4` |  |
| Entropy; _printed: S298 K_ | 28.48 unknown ± 0.4 | 298.15 | TiB2; _alloy: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Chase 1998_ | Table 3, p. 4, row 4; `ORC-N4BHD7DBLB.26746a` |  |
| Entropy; _printed: S298 K_ | 28.602 unknown ± 0.42 | 298.15 | TiB2; _alloy: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Yurick 1980_ | Table 3, p. 4, row 3; `ORC-ORLDJMWTKA.aa611f` |  |

### Crystal structure (95)

Table: Crystal structure, B–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Lattice a | 10.9251 Å | 298.15 | (βB); _alloy: Ti 0_ | experimental | [3] Ma 2004; _cites Callmer 1977_ | Table 2, p. 2, row 10; `ORC-A7AJWSOFTE.7bb072` |  |
| Lattice a | 3.259 Å | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites ref. 85Vil_ | Table 3, p. 4, row 14; `ORC-AG75E2QCYW.4b8e4f` |  |
| Lattice a | 3.26 Å | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | experimental | [3] Ma 2004; _cites Spear 1986_ [doi](https://doi.org/10.1111/j.1151-2916.1986.tb04701.x) | Table 2, p. 2, row 9; `ORC-LAJXZ7EO7F.88250d` |  |
| Lattice a | 3.259 Å | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | experimental | [3] Ma 2004; _cites Fenish 1966_ | Table 2, p. 2, row 8; `ORC-WYFHQWJVP7.0d9f0d` |  |
| Lattice a | 0.3259 not_printed | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [5] Bittermann 1997; _cites ref. 85Vil_ | Table 2, p. 3, row 9; `ORC-XVTORUATDT.a61cc6` |  |
| Lattice a | 6.105 Å | 298.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites ref. 85Vil_ | Table 3, p. 4, row 9; `ORC-42CFWDLZDC.4c76ff` |  |
| Lattice a | 6.12 Å | 298.15 | TiB; _alloy: Ti 0.5_ | experimental | [3] Ma 2004; _cites Decker 1954_ [doi](https://doi.org/10.1107/s0365110x5400014x) | Table 2, p. 2, row 3; `ORC-DIARI2BAP3.2d0993` |  |
| Lattice a | 0.6105 not_printed | 298.15 | TiB; _alloy: Ti 0.5_ | unspecified | [5] Bittermann 1997; _cites ref. 85Vil_ | Table 2, p. 3, row 8; `ORC-IKIJRBBLQV.d63409` |  |
| Lattice a | 6.105 Å | 298.15 | TiB; _alloy: Ti 0.5_ | model | [3] Ma 2004; _cites Wittmann 1960_ [doi](https://doi.org/10.1007/bf00899796) | Table 2, p. 2, row 4; `ORC-ZXIJR2NDZ5.77de6d` |  |
| Lattice a | 3.031 Å | 298.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 85Vil_ | Table 3, p. 4, row 19; `ORC-EUCBHHIEDY.0f9d61` |  |
| Lattice a | 3.028 Å | 298.15 | TiB2; _alloy: Ti 0.333333_ | model | [3] Ma 2004; _cites Brewer 2004_ | Table 2, p. 2, row 6; `ORC-EYBLPWDOAV.f2f331` |  |
| Lattice a | 3.028 Å | 298.15 | TiB2; _alloy: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Gebhardt 1965_ | Table 2, p. 2, row 5; `ORC-IAFWJDHVOH.f47d58` |  |
| Lattice a | 3.03 Å | 298.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [3] Ma 2004; _cites Kaufman 1965_ | Table 2, p. 2, row 7; `ORC-O7D3T222UG.1fbeff` |  |
| Lattice a | 0.3031 not_printed | 298.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [5] Bittermann 1997; _cites ref. 85Vil_ | Table 2, p. 3, row 10; `ORC-UVDIUZ3WIE.c17fb1` |  |
| Lattice a | 8.83 Å | 298.15 | TiB25; _alloy: Ti 0.038462_ | experimental | [6] Duschanek 1995; _cites Amberger 1975_ [doi](https://doi.org/10.1107/s0567740875004268) | Table 3, p. 5, row 38; `ORC-GEABM2B4VT.4137a8` |  |
| Lattice a | 8.83 Å | 298.15 | TiB25; _alloy: Ti 0.038462_ | experimental | [6] Duschanek 1995; _cites Amberger 1975_ [doi](https://doi.org/10.1107/s0567740875004268) | Table 3, p. 4, row 66; `ORC-O63L56C4P2.91c2d1` |  |
| Lattice a | 3.2631 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 15; `ORC-5Z4GMXCCJE.11a5db` |  |
| Lattice a | 3.2611 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 16; `ORC-76DLNN4BDV.236c30` |  |
| Lattice a | 3.2604 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 17; `ORC-FBM75JH5R6.e17602` |  |
| Lattice a | 3.263 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 18; `ORC-KL4W5MVU4C.71e4c6` |  |
| Lattice a | 6.109 Å | 1823.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 13; `ORC-2N6CXIGTDI.2c1969` |  |
| Lattice a | 6.1142 Å | 1823.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 12; `ORC-6I4YTF7KA4.8e3759` |  |
| Lattice a | 3.0304 Å | 1823.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 20; `ORC-2W2CDJSOGL.9ead17` |  |
| Lattice a | 4.3136 Å | 1823.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 40; `ORC-3WT5XY4K7U` |  |
| Lattice a | 4.3192 Å | 1823.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 38; `ORC-AXAKQ2GSJE` |  |
| Lattice a | 4.3207 Å | 1823.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 41; `ORC-F5AX7BB3DQ` |  |
| Lattice a | 4.3226 Å | 1823.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 42; `ORC-FD6HKGTDCK` |  |
| Lattice a | 4.3112 Å | 1823.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 36; `ORC-GVXG5BT5IE` |  |
| Lattice a | 4.3166 Å | 1823.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 37; `ORC-HSD4NTEVKJ` |  |
| Lattice a | 4.3209 Å | 1823.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 39; `ORC-MJISQX4FWC` |  |
| Lattice a | 6.12 Å | 1853.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 10; `ORC-36EUFR46QG.eba1a0` |  |
| Lattice a | 6.11 Å | 1873.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 11; `ORC-X54WEV3MAE.54aaa7` |  |
| Lattice a | 3.024 Å | 2755.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 24; `ORC-6CD3QN6APC.6bda57` |  |
| Lattice a | 4.322 Å | 2790.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 52; `ORC-PNUPVNTZFW` |  |
| Lattice a | 4.31 Å | 2791.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 45; `ORC-RFVHAOWHXU` |  |
| Lattice a | 3.02 Å | 2883.15 | TiB2; _alloy: Ti 0.333333_ | experimental | [6] Duschanek 1995; _cites Ordan'yan 1975_ | Table 3, p. 4, row 28; `ORC-DAWGQTW734.abf787` |  |
| Lattice a | 3.022 Å | 2893.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 21; `ORC-ESIV2HDNUV.750590` |  |
| Lattice a | 4.329 Å | 2898.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 53; `ORC-MRTB5BFQN5` |  |
| Lattice a | 4.318 Å | 2903.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 46; `ORC-CZR6MFDMNP` |  |
| Lattice a | 4.321 Å | 2915.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 44; `ORC-JYCTJWURWH` |  |
| Lattice a | 4.329 Å | 2934.15 | TiC1-x | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 47; `ORC-YJYLMTOO32` |  |
| Lattice a | 3.022 Å | 2985.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 23; `ORC-NFEMW3MIPU.127c78` |  |
| Lattice a | 3.027 Å | 3032.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 86Ord_ | Table 3, p. 4, row 27; `ORC-LDOCHNMGL2.2248e8` |  |
| Lattice a | 3.028 Å | 3118.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 25; `ORC-AURUMLGEXV.6e657d` |  |
| Lattice a | 3.026 Å | 3253.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 86Ord_ | Table 3, p. 4, row 26; `ORC-GJBHKHBXHV.3f82ef` |  |
| Lattice a | 3.024 Å | 3275.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 22; `ORC-3N7VB4NVGS.da1b01` |  |
| Lattice b | 13.73 Å | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites ref. 85Vil_ | Table 3, p. 4, row 14; `ORC-AG75E2QCYW.423703` |  |
| Lattice b | 13.72 Å | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | experimental | [3] Ma 2004; _cites Spear 1986_ [doi](https://doi.org/10.1111/j.1151-2916.1986.tb04701.x) | Table 2, p. 2, row 9; `ORC-LAJXZ7EO7F.1bd402` |  |
| Lattice b | 13.73 Å | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | experimental | [3] Ma 2004; _cites Fenish 1966_ | Table 2, p. 2, row 8; `ORC-WYFHQWJVP7.b27b0f` |  |
| Lattice b | 1.373 not_printed | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [5] Bittermann 1997; _cites ref. 85Vil_ | Table 2, p. 3, row 9; `ORC-XVTORUATDT.667e74` |  |
| Lattice b | 3.048 Å | 298.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites ref. 85Vil_ | Table 3, p. 4, row 9; `ORC-42CFWDLZDC.d4100b` |  |
| Lattice b | 3.06 Å | 298.15 | TiB; _alloy: Ti 0.5_ | experimental | [3] Ma 2004; _cites Decker 1954_ [doi](https://doi.org/10.1107/s0365110x5400014x) | Table 2, p. 2, row 3; `ORC-DIARI2BAP3.fa35e3` |  |
| Lattice b | 0.3048 not_printed | 298.15 | TiB; _alloy: Ti 0.5_ | unspecified | [5] Bittermann 1997; _cites ref. 85Vil_ | Table 2, p. 3, row 8; `ORC-IKIJRBBLQV.31c7a9` |  |
| Lattice b | 3.048 Å | 298.15 | TiB; _alloy: Ti 0.5_ | model | [3] Ma 2004; _cites Wittmann 1960_ [doi](https://doi.org/10.1007/bf00899796) | Table 2, p. 2, row 4; `ORC-ZXIJR2NDZ5.afb941` |  |
| Lattice b | 13.7336 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 15; `ORC-5Z4GMXCCJE.864208` |  |
| Lattice b | 13.7239 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 16; `ORC-76DLNN4BDV.d80d93` |  |
| Lattice b | 13.7326 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 17; `ORC-FBM75JH5R6.c40e1f` |  |
| Lattice b | 13.722 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 18; `ORC-KL4W5MVU4C.af9116` |  |
| Lattice b | 3.0509 Å | 1823.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 13; `ORC-2N6CXIGTDI.03bb18` |  |
| Lattice b | 3.0508 Å | 1823.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 12; `ORC-6I4YTF7KA4.4c7b84` |  |
| Lattice b | 3.072 Å | 1853.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 10; `ORC-36EUFR46QG.f38960` |  |
| Lattice b | 3.07 Å | 1873.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 11; `ORC-X54WEV3MAE.f096ab` |  |
| Lattice c | 23.814 Å | 298.15 | (βB); _alloy: Ti 0_ | experimental | [3] Ma 2004; _cites Callmer 1977_ | Table 2, p. 2, row 10; `ORC-A7AJWSOFTE.33408d` |  |
| Lattice c | 3.042 Å | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites ref. 85Vil_ | Table 3, p. 4, row 14; `ORC-AG75E2QCYW.5b5d09` |  |
| Lattice c | 3.041 Å | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | experimental | [3] Ma 2004; _cites Spear 1986_ [doi](https://doi.org/10.1111/j.1151-2916.1986.tb04701.x) | Table 2, p. 2, row 9; `ORC-LAJXZ7EO7F.21e617` |  |
| Lattice c | 3.042 Å | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | experimental | [3] Ma 2004; _cites Fenish 1966_ | Table 2, p. 2, row 8; `ORC-WYFHQWJVP7.152a62` |  |
| Lattice c | 0.3042 not_printed | 298.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [5] Bittermann 1997; _cites ref. 85Vil_ | Table 2, p. 3, row 9; `ORC-XVTORUATDT.78d9ad` |  |
| Lattice c | 4.551 Å | 298.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites ref. 85Vil_ | Table 3, p. 4, row 9; `ORC-42CFWDLZDC.5b1292` |  |
| Lattice c | 4.56 Å | 298.15 | TiB; _alloy: Ti 0.5_ | experimental | [3] Ma 2004; _cites Decker 1954_ [doi](https://doi.org/10.1107/s0365110x5400014x) | Table 2, p. 2, row 3; `ORC-DIARI2BAP3.8e6200` |  |
| Lattice c | 0.4551 not_printed | 298.15 | TiB; _alloy: Ti 0.5_ | unspecified | [5] Bittermann 1997; _cites ref. 85Vil_ | Table 2, p. 3, row 8; `ORC-IKIJRBBLQV.d6bd89` |  |
| Lattice c | 4.542 Å | 298.15 | TiB; _alloy: Ti 0.5_ | model | [3] Ma 2004; _cites Wittmann 1960_ [doi](https://doi.org/10.1007/bf00899796) | Table 2, p. 2, row 4; `ORC-ZXIJR2NDZ5.01aa12` |  |
| Lattice c | 3.229 Å | 298.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 85Vil_ | Table 3, p. 4, row 19; `ORC-EUCBHHIEDY.2f5e19` |  |
| Lattice c | 3.23 Å | 298.15 | TiB2; _alloy: Ti 0.333333_ | model | [3] Ma 2004; _cites Brewer 2004_ | Table 2, p. 2, row 6; `ORC-EYBLPWDOAV.391abf` |  |
| Lattice c | 3.228 Å | 298.15 | TiB2; _alloy: Ti 0.333333_ | experimental | [3] Ma 2004; _cites Gebhardt 1965_ | Table 2, p. 2, row 5; `ORC-IAFWJDHVOH.26d56e` |  |
| Lattice c | 3.228 Å | 298.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [3] Ma 2004; _cites Kaufman 1965_ | Table 2, p. 2, row 7; `ORC-O7D3T222UG.600e28` |  |
| Lattice c | 0.3229 not_printed | 298.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [5] Bittermann 1997; _cites ref. 85Vil_ | Table 2, p. 3, row 10; `ORC-UVDIUZ3WIE.48b786` |  |
| Lattice c | 5.072 Å | 298.15 | TiB25; _alloy: Ti 0.038462_ | experimental | [6] Duschanek 1995; _cites Amberger 1975_ [doi](https://doi.org/10.1107/s0567740875004268) | Table 3, p. 5, row 38; `ORC-GEABM2B4VT.282d79` |  |
| Lattice c | 5.072 Å | 298.15 | TiB25; _alloy: Ti 0.038462_ | experimental | [6] Duschanek 1995; _cites Amberger 1975_ [doi](https://doi.org/10.1107/s0567740875004268) | Table 3, p. 4, row 66; `ORC-O63L56C4P2.7f04f8` |  |
| Lattice c | 3.0356 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 15; `ORC-5Z4GMXCCJE.54c6b3` |  |
| Lattice c | 3.0374 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 16; `ORC-76DLNN4BDV.6c4d3d` |  |
| Lattice c | 3.0361 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 17; `ORC-FBM75JH5R6.c8a198` |  |
| Lattice c | 3.0384 Å | 1823.15 | Ti3B4; _alloy: Ti 0.428571_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 18; `ORC-KL4W5MVU4C.17a6b7` |  |
| Lattice c | 4.5567 Å | 1823.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 13; `ORC-2N6CXIGTDI.218f94` |  |
| Lattice c | 4.559 Å | 1823.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 12; `ORC-6I4YTF7KA4.989b09` |  |
| Lattice c | 3.2294 Å | 1823.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites Du 1993_ | Table 3, p. 4, row 20; `ORC-2W2CDJSOGL.b2790f` |  |
| Lattice c | 4.56 Å | 1853.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 10; `ORC-36EUFR46QG.52a065` |  |
| Lattice c | 4.56 Å | 1873.15 | TiB; _alloy: Ti 0.5_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 11; `ORC-X54WEV3MAE.d50d26` |  |
| Lattice c | 3.223 Å | 2755.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 24; `ORC-6CD3QN6APC.e32f0b` |  |
| Lattice c | 3.213 Å | 2883.15 | TiB2; _alloy: Ti 0.333333_ | experimental | [6] Duschanek 1995; _cites Ordan'yan 1975_ | Table 3, p. 4, row 28; `ORC-DAWGQTW734.7df8f6` |  |
| Lattice c | 3.223 Å | 2893.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 21; `ORC-ESIV2HDNUV.7fa1a5` |  |
| Lattice c | 3.224 Å | 2985.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 23; `ORC-NFEMW3MIPU.2a81b2` |  |
| Lattice c | 3.214 Å | 3032.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 86Ord_ | Table 3, p. 4, row 27; `ORC-LDOCHNMGL2.115ec8` |  |
| Lattice c | 3.225 Å | 3118.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 25; `ORC-AURUMLGEXV.4f64ca` |  |
| Lattice c | 3.213 Å | 3253.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 86Ord_ | Table 3, p. 4, row 26; `ORC-GJBHKHBXHV.eb4a2a` |  |
| Lattice c | 3.223 Å | 3275.15 | TiB2; _alloy: Ti 0.333333_ | unspecified | [6] Duschanek 1995; _cites ref. 66Rud_ | Table 3, p. 4, row 22; `ORC-3N7VB4NVGS.a8d4fc` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 448, 185-194 (2008). [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034)
2. I. Ansara, A. T. Dinsdale, M. H. Rand (eds.), COST 507: Thermochemical database for light metal alloys, Volume 2, EUR 18499 EN, Office for Official Publications of the European Communities, Luxembourg (1998), ISBN 92-828-3902-8.
3. Xiaoyan Ma, Changrong Li, Zhenmin Du, Weijing Zhang, Thermodynamic assessment of the Ti–B system, Journal of Alloys and Compounds 370, 149-158 (2004). [doi:10.1016/j.jallcom.2003.09.017](https://doi.org/10.1016/j.jallcom.2003.09.017)
4. G. Cacciamani, P. Riani, F. Valenza, Equilibrium between MB2 (M=Ti,Zr,Hf) UHTC and Ni: A thermodynamic database for the B–Hf–Ni–Ti–Zr system, Calphad 35, 601-619 (2011). [doi:10.1016/j.calphad.2011.10.003](https://doi.org/10.1016/j.calphad.2011.10.003)
5. H. Bittermann, P. Rogl, Critical assessment and thermodynamic calculation of the ternary system boron-hafnium-titanium (B-Hf-Ti), JPE 18, 24-47 (1997). [doi:10.1007/bf02646757](https://doi.org/10.1007/bf02646757)
6. H. Duschanek, P. Rogl, H. L. Lukas, A critical assessment and thermodynamic calculation of the boron-carbon-titanium (B-C-Ti) ternary system, JPE 16, 46-60 (1995). [doi:10.1007/bf02646248](https://doi.org/10.1007/bf02646248)
7. Yu Nakama, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Nb&amp;ndash;Ti&amp;ndash;B Ternary Phase Diagram, Mater. Trans. 50, 984-993 (2009). [doi:10.2320/matertrans.mc200820](https://doi.org/10.2320/matertrans.mc200820)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file.

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).