# Nb–B system > Nb–B system: 0 accepted literature values (none) and 5 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote. HTML: https://data.orchid-project.org/systems/NB-B.html · Markdown: https://data.orchid-project.org/systems/NB-B.md 0 accepted literature values from 0 paper(s); 5 calculated phase diagram(s). Data: [interactive phase diagram](https://orchid-project.org/phase-diagrams/#NB-B/NbB-07Pec.json) · [Markdown](https://data.orchid-project.org/systems/NB-B.md) ## Calculated phase diagrams Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model. Table: Assessments with a calculated phase diagram | TDB file | Assessment | SHA-256 | Links | |---|---|---|---| | NbB-07Pec.tdb | R.M. Pecanha, F. Ferreira, G.C. Coelho, C.A. Nunes, B. Sundman, Intermetallics, 15, 999-1005(2007). [doi:10.1016/j.intermet.2006.10.054](https://doi.org/10.1016/j.intermet.2006.10.054) | `69bb1b9f802ec19af78b2a85c1fcdb4df5a8bc0b764364baaeb7d63fc381bb09` | [viewer](https://orchid-project.org/phase-diagrams/#NB-B/NbB-07Pec.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NbB-07Pec.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NbB-07Pec.json) | | NbB-08Wit.tdb | V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, J. Alloys Compd., 448, 185-94(2008). [doi:10.1016/j.jallcom.2006.10.034](https://doi.org/10.1016/j.jallcom.2006.10.034) | `2bc2c38fb45e540c8ce91c2bed823a03b21db964cc6147ac11ca060377282ecd` | [viewer](https://orchid-project.org/phase-diagrams/#NB-B/NbB-08Wit.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NbB-08Wit.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NbB-08Wit.json) | | NbB-08Yos.tdb | K. Yoshitomi, Y. Nakama, H. Ohtani, M. Hasebe, ISIJ Int., 48, 835-44(2008). [doi:10.2355/isijinternational.48.835](https://doi.org/10.2355/isijinternational.48.835) | `3dfd7add5bd6f59611d1863efc7a52790dc4a3cd4dc87028630ab1fc2d923ddf` | [viewer](https://orchid-project.org/phase-diagrams/#NB-B/NbB-08Yos.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NbB-08Yos.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NbB-08Yos.json) | | NbB-09Nak.tdb | Y. Nakama, H. Ohtani, M. Hasebe, Mater. Trans. (JIM), 50, 984-93(2009). [doi:10.2320/matertrans.MC200820](https://doi.org/10.2320/matertrans.MC200820) | `a5b39b98692d5b705d483011d0a8a829f869516e851484fb4d364b398addd088` | [viewer](https://orchid-project.org/phase-diagrams/#NB-B/NbB-09Nak.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NbB-09Nak.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NbB-09Nak.json) | | NbB-23Pan.tdb | Y. Pan, X. Yang, Z. Fan, A. Liu, J. Zhang, F. Luo, Y. Du, L. Huang, Calphad, 82, 102602(2023). [doi:10.1016/j.calphad.2023.102602](https://doi.org/10.1016/j.calphad.2023.102602) | `71523b86a3d618ea5be31d7b56c053add18ec9e792568d5b7645c2dde0a8af86` | [viewer](https://orchid-project.org/phase-diagrams/#NB-B/NbB-23Pan.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/NbB-23Pan.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/NbB-23Pan.json) | Table: Calculated three-phase invariants (model, mole fraction of the second component) | TDB file | T (K) | Phases at the invariant | |---|---:|---| | NbB-07Pec.tdb | 3213.89 | LIQUID (x(B) 0.56299) + NB3B4_D7B (x(B) 0.57143) + NBB2_C32 (x(B) 0.66529) | | NbB-07Pec.tdb | 3213.88 | LIQUID (x(B) 0.56314) + NB3B4_D7B (x(B) 0.57143) + NBB2_C32 (x(B) 0.66529) | | NbB-07Pec.tdb | 3197.32 | LIQUID (x(B) 0.52258) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-07Pec.tdb | 3197.31 | LIQUID (x(B) 0.5229) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-07Pec.tdb | 3197.31 | LIQUID (x(B) 0.52298) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-07Pec.tdb | 3197.31 | LIQUID (x(B) 0.523) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-07Pec.tdb | 3192.47 | NBB_B33 (x(B) 0.5) + LIQUID (x(B) 0.51133) + NB5B6 (x(B) 0.54545) | | NbB-07Pec.tdb | 3192.47 | NBB_B33 (x(B) 0.5) + LIQUID (x(B) 0.51141) + NB5B6 (x(B) 0.54545) | | NbB-07Pec.tdb | 3192.47 | NBB_B33 (x(B) 0.5) + LIQUID (x(B) 0.51125) + NB5B6 (x(B) 0.54545) | | NbB-07Pec.tdb | 3192.47 | NBB_B33 (x(B) 0.5) + LIQUID (x(B) 0.51124) + NB5B6 (x(B) 0.54545) | | NbB-07Pec.tdb | 2453.95 | BCC_A2 (x(B) 0.02696) + LIQUID (x(B) 0.15338) + NBB_B33 (x(B) 0.5) | | NbB-07Pec.tdb | 2453.95 | BCC_A2 (x(B) 0.02694) + LIQUID (x(B) 0.15327) + NBB_B33 (x(B) 0.5) | | NbB-07Pec.tdb | 2345.83 | BCC_A2 (x(B) 0.02094) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-07Pec.tdb | 2345.83 | BCC_A2 (x(B) 0.02095) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-07Pec.tdb | 2319.2 | NBB2_C32 (x(B) 0.7053) + LIQUID (x(B) 0.97264) + BETA_RHOMBO_B (x(B) 1) | | NbB-08Wit.tdb | 3186.2 | LIQUID (x(B) 0.52736) + NB3B4_D7B (x(B) 0.57143) + NBB2_C32 (x(B) 0.60952) | | NbB-08Wit.tdb | 3174.19 | LIQUID (x(B) 0.51417) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-08Wit.tdb | 3174.07 | NBB_B33 (x(B) 0.4993) + LIQUID (x(B) 0.51396) + NB5B6 (x(B) 0.54545) | | NbB-08Wit.tdb | 2649.67 | NB3B4_D7B (x(B) 0.57143) + NB2B3 (x(B) 0.6) + NBB2_C32 (x(B) 0.6319) | | NbB-08Wit.tdb | 2649.67 | NB3B4_D7B (x(B) 0.57143) + NB2B3 (x(B) 0.6) + NBB2_C32 (x(B) 0.63189) | | NbB-08Wit.tdb | 2452.77 | BCC_A2 (x(B) 0.02027) + LIQUID (x(B) 0.15062) + NBB_B33 (x(B) 0.48788) | | NbB-08Wit.tdb | 2350.56 | BCC_A2 (x(B) 0.01853) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.48963) | | NbB-08Wit.tdb | 2350.56 | BCC_A2 (x(B) 0.01853) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.48964) | | NbB-08Wit.tdb | 2284.57 | NBB2_C32 (x(B) 0.70294) + LIQUID (x(B) 0.95444) + BETA_RHOMBO_B (x(B) 0.99521) | | NbB-08Yos.tdb | 3189.01 | LIQUID (x(B) 0.52011) + NB3B4_D7B (x(B) 0.57143) + NBB2_C32 (x(B) 0.61526) | | NbB-08Yos.tdb | 3189.01 | LIQUID (x(B) 0.52014) + NB3B4_D7B (x(B) 0.57143) + NBB2_C32 (x(B) 0.61527) | | NbB-08Yos.tdb | 3178.59 | LIQUID (x(B) 0.50999) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-08Yos.tdb | 3178.59 | LIQUID (x(B) 0.51015) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-08Yos.tdb | 3178.59 | LIQUID (x(B) 0.50986) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-08Yos.tdb | 3174.56 | NBB_B33 (x(B) 0.5) + LIQUID (x(B) 0.50419) + NB5B6 (x(B) 0.54545) | | NbB-08Yos.tdb | 3174.56 | NBB_B33 (x(B) 0.5) + LIQUID (x(B) 0.50406) + NB5B6 (x(B) 0.54545) | | NbB-08Yos.tdb | 2643.85 | NB3B4_D7B (x(B) 0.57143) + NB2B3 (x(B) 0.6) + NBB2_C32 (x(B) 0.62774) | | NbB-08Yos.tdb | 2439.54 | BCC_A2 (x(B) 0.01174) + LIQUID (x(B) 0.1504) + NBB_B33 (x(B) 0.5) | | NbB-08Yos.tdb | 2439.54 | BCC_A2 (x(B) 0.01173) + LIQUID (x(B) 0.15035) + NBB_B33 (x(B) 0.5) | | NbB-08Yos.tdb | 2415.86 | BCC_A2 (x(B) 0.01145) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-08Yos.tdb | 2415.86 | BCC_A2 (x(B) 0.01144) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-08Yos.tdb | 2415.86 | BCC_A2 (x(B) 0.01145) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-08Yos.tdb | 2415.86 | BCC_A2 (x(B) 0.01144) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-08Yos.tdb | 2270.37 | NBB2_C32 (x(B) 0.7037) + LIQUID (x(B) 0.94972) + BETA_RHOMBO_B (x(B) 1) | | NbB-08Yos.tdb | 369.95 | NB3B4_D7B (x(B) 0.57143) + NB2B3 (x(B) 0.6) + NBB2_C32 (x(B) 0.66769) | | NbB-09Nak.tdb | 3192.71 | LIQUID (x(B) 0.54238) + NB3B4_D7B (x(B) 0.572) + NBB2_C32 (x(B) 0.63827) | | NbB-09Nak.tdb | 3192.71 | LIQUID (x(B) 0.54252) + NB3B4_D7B (x(B) 0.572) + NBB2_C32 (x(B) 0.6383) | | NbB-09Nak.tdb | 3176.65 | LIQUID (x(B) 0.52113) + NB5B6 (x(B) 0.545) + NB3B4_D7B (x(B) 0.572) | | NbB-09Nak.tdb | 3176.65 | LIQUID (x(B) 0.5212) + NB5B6 (x(B) 0.545) + NB3B4_D7B (x(B) 0.572) | | NbB-09Nak.tdb | 3174.58 | NBB_B33 (x(B) 0.5) + LIQUID (x(B) 0.51683) + NB5B6 (x(B) 0.545) | | NbB-09Nak.tdb | 3174.58 | NBB_B33 (x(B) 0.5) + LIQUID (x(B) 0.51678) + NB5B6 (x(B) 0.545) | | NbB-09Nak.tdb | 2664.94 | NB3B4_D7B (x(B) 0.572) + NB2B3 (x(B) 0.6) + NBB2_C32 (x(B) 0.64) | | NbB-09Nak.tdb | 2440.11 | BCC_A2 (x(B) 0.01171) + LIQUID (x(B) 0.15019) + NBB_B33 (x(B) 0.5) | | NbB-09Nak.tdb | 2440.11 | BCC_A2 (x(B) 0.01171) + LIQUID (x(B) 0.15014) + NBB_B33 (x(B) 0.5) | | NbB-09Nak.tdb | 2352.57 | BCC_A2 (x(B) 0.01066) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-09Nak.tdb | 2352.57 | BCC_A2 (x(B) 0.01066) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-09Nak.tdb | 2352.57 | BCC_A2 (x(B) 0.01066) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-09Nak.tdb | 2352.57 | BCC_A2 (x(B) 0.01066) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.5) | | NbB-09Nak.tdb | 2276.54 | NBB2_C32 (x(B) 0.70499) + LIQUID (x(B) 0.95265) + BETA_RHOMBO_B (x(B) 1) | | NbB-23Pan.tdb | 3186.2 | LIQUID (x(B) 0.52736) + NB3B4_D7B (x(B) 0.57143) + NBB2_C32 (x(B) 0.60952) | | NbB-23Pan.tdb | 3176.08 | NBB_B33 (x(B) 0.49527) + LIQUID (x(B) 0.51606) + NB3B4_D7B (x(B) 0.57143) | | NbB-23Pan.tdb | 3082.6 | NBB_B33 (x(B) 0.49563) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-23Pan.tdb | 3082.6 | NBB_B33 (x(B) 0.49563) + NB5B6 (x(B) 0.54545) + NB3B4_D7B (x(B) 0.57143) | | NbB-23Pan.tdb | 2649.67 | NB3B4_D7B (x(B) 0.57143) + NB2B3 (x(B) 0.6) + NBB2_C32 (x(B) 0.6319) | | NbB-23Pan.tdb | 2649.67 | NB3B4_D7B (x(B) 0.57143) + NB2B3 (x(B) 0.6) + NBB2_C32 (x(B) 0.63189) | | NbB-23Pan.tdb | 2460.97 | BCC_A2 (x(B) 0.01965) + LIQUID (x(B) 0.14781) + NBB_B33 (x(B) 0.47539) | | NbB-23Pan.tdb | 2310.17 | BCC_A2 (x(B) 0.01737) + NB3B2_D5A (x(B) 0.4) + NBB_B33 (x(B) 0.47898) | | NbB-23Pan.tdb | 2284.57 | NBB2_C32 (x(B) 0.70294) + LIQUID (x(B) 0.95444) + BETA_RHOMBO_B (x(B) 0.99521) | ## Please cite - R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735859 - 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 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; 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). 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_phase_diagrams_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID-Diagrams: calculated binary phase diagrams}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23735859}, url = {https://doi.org/10.5281/zenodo.23735859} } @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=\, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).