B–U system

155 accepted literature values from 1 paper(s) (experimental 114, model 41); 0 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · phases (10) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	114
model	41

Accepted values by property group
Property group	Values
phase transition	18
formation	3
heat capacity / entropy / enthalpy	113
crystal structure	21

Convex hulls: Materials Project DFT hull · OQMD DFT hull

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.

Enthalpies of formation, B–U system (3)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
B0.667U0.333(S)		-54.81 kJ/mol-atom	298.15	model			[1] Chevalier 2001	Table 34, p. 28, row 12 report
B0.800U0.200(S)	UB4	-46.837 kJ/mol-atom	298.15	model	-49.016 (mp-aaaaaaxv)	-49.041 (oqmd-4686)	[1] Chevalier 2001	Table 34, p. 28, row 13 report
B0.923U0.077(S)		-29.753 kJ/mol-atom	298.15	model			[1] Chevalier 2001	Table 34, p. 28, row 11 report

Other properties

Phase transition (18)

Phase transition, B–U system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	1380 K	1380	eutectic	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 1 report
Phase transition	1933 K	1933	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 2 report
Phase transition	2048 K	2048	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 3 report
Phase transition	2273 K	2273	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 4 report
Phase transition	2298 K	2298	other	experimental	[1] Chevalier 2001 cites Mar 1975	Table 26, p. 23, row 17 report
Phase transition	2309 K	2309	eutectic	experimental	[1] Chevalier 2001 cites Mar 1975	Table 26, p. 23, row 18 report
Phase transition	2348 K	2348	other	experimental	[1] Chevalier 2001 cites Mar 1975	Table 26, p. 23, row 16 report
Phase transition	2367 K	2367	other	experimental	[1] Chevalier 2001 cites Mar 1975	Table 26, p. 23, row 15 report
Phase transition	2406 K	2406	other	experimental	[1] Chevalier 2001 cites Mar 1975	Table 26, p. 23, row 13 report
Phase transition	2409 K	2409	other	experimental	[1] Chevalier 2001 cites Mar 1975	Table 26, p. 23, row 14 report
Phase transition	2508 K	2508	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 12 report
Phase transition	2533 K	2533	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 5 report
Phase transition	2548 K	2548	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 11 report
Phase transition	2613 K	2613	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 8 report
Phase transition	2658 K	2658	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 6 report
Phase transition	2663 K	2663	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 9 report
Phase transition	2703 K	2703	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 7 report
Phase transition	2768 K	2768	other	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 26, p. 23, row 10 report

Heat capacity / entropy / enthalpy (113)

Heat capacity / entropy / enthalpy, B–U system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Entropy printed: S°298.15	18.175 J/mol-atom/K	298.15	B0.667U0.333(S) alloy: U 0.333	model	[1] Chevalier 2001	Table 34, p. 28, row 12 report
Entropy printed: S°298.15	13.682 J/mol-atom/K	298.15	B0.800U0.200(S) alloy: U 0.2	model	[1] Chevalier 2001	Table 34, p. 28, row 13 report
Entropy printed: S°298.15	7.5191 J/mol-atom/K	298.15	B0.923U0.077(S) alloy: U 0.077	model	[1] Chevalier 2001	Table 34, p. 28, row 11 report
Heat capacity printed: Cp	18.575 J/mol-atom/K	298.15	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 1 report
Heat capacity printed: Cp	18.587 J/mol-atom/K	298.15	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Flotow 1969 doi	Table 27, p. 23, row 1 report
Heat capacity printed: Cp	18.66 J/mol-atom/K	300	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 2 report
Heat capacity printed: Cp	18.684 J/mol-atom/K	300.4	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Flotow 1969 doi	Table 27, p. 23, row 2 report
Heat capacity printed: Cp	19.087 J/mol-atom/K	310.6	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Flotow 1969 doi	Table 27, p. 23, row 3 report
Heat capacity printed: Cp	19.51 J/mol-atom/K	320.84	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Flotow 1969 doi	Table 27, p. 23, row 4 report
Heat capacity printed: Cp	19.889 J/mol-atom/K	330.94	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Flotow 1969 doi	Table 27, p. 23, row 5 report
Heat capacity printed: Cp	20.245 J/mol-atom/K	340.91	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Flotow 1969 doi	Table 27, p. 23, row 6 report
Heat capacity printed: Cp	20.49 J/mol-atom/K	348.31	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Flotow 1969 doi	Table 27, p. 23, row 7 report
Heat capacity printed: Cp	22.085 J/mol-atom/K	400	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 3 report
Heat capacity printed: Cp	24.234 J/mol-atom/K	500	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 4 report
Heat capacity printed: Cp	25.806 J/mol-atom/K	600	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 5 report
Heat capacity printed: Cp	27.056 J/mol-atom/K	700	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 6 report
Heat capacity printed: Cp	28.095 J/mol-atom/K	800	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 7 report
Heat capacity printed: Cp	28.965 J/mol-atom/K	900	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 8 report
Heat capacity printed: Cp	29.709 J/mol-atom/K	1000	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 9 report
Heat capacity printed: Cp	30.341 J/mol-atom/K	1100	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 10 report
Heat capacity printed: Cp	30.861 J/mol-atom/K	1200	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 11 report
Heat capacity printed: Cp	31.296 J/mol-atom/K	1300	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 12 report
Heat capacity printed: Cp	31.633 J/mol-atom/K	1400	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 13 report
Heat capacity printed: Cp	31.942 J/mol-atom/K	1500	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 15 report
Heat capacity printed: Cp	31.899 J/mol-atom/K	1500	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1969	Table 29, p. 24, row 14 report
Heat capacity printed: Cp	32.742 J/mol-atom/K	1600	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 16 report
Heat capacity printed: Cp	33.823 J/mol-atom/K	1700	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 17 report
Heat capacity printed: Cp	35.283 J/mol-atom/K	1800	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 18 report
Heat capacity printed: Cp	37.179 J/mol-atom/K	1900	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 19 report
Heat capacity printed: Cp	39.594 J/mol-atom/K	2000	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 20 report
Heat capacity printed: Cp	42.598 J/mol-atom/K	2100	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 21 report
Heat capacity printed: Cp	46.263 J/mol-atom/K	2200	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 22 report
Heat capacity printed: Cp	50.657 J/mol-atom/K	2300	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 23 report
Heat capacity printed: Cp	55.88 J/mol-atom/K	2400	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 24 report
Heat capacity printed: Cp	61.973 J/mol-atom/K	2500	B2U alloy: U 0.333333	model	[1] Chevalier 2001 cites Fredrickson 1970	Table 29, p. 24, row 25 report
Heat content printed: HT-H298	6342 J/g at.	579.3	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 1 report
Heat content printed: HT-H298	6396 J/g at.	579.3	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 2 report
Heat content printed: HT-H298	8730 J/g at.	669.5	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 3 report
Heat content printed: HT-H298	8760 J/g at.	669.5	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 4 report
Heat content printed: HT-H298	10231 J/g at.	723.9	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 6 report
Heat content printed: HT-H298	10209 J/g at.	723.9	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 5 report
Heat content printed: HT-H298	11618 J/g at.	772.7	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 7 report
Heat content printed: HT-H298	11577 J/g at.	772.7	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 8 report
Heat content printed: HT-H298	13069 J/g at.	826.2	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 9 report
Heat content printed: HT-H298	13077 J/g at.	826.2	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 10 report
Heat content printed: HT-H298	14359 J/g at.	871.2	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 12 report
Heat content printed: HT-H298	14329 J/g at.	871.2	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 11 report
Heat content printed: HT-H298	16328 J/g at.	940.1	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 13 report
Heat content printed: HT-H298	16352 J/g at.	940.1	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 14 report
Heat content printed: HT-H298	18758 J/g at.	1021.7	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 16 report
Heat content printed: HT-H298	18755 J/g at.	1021.7	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 15 report
Heat content printed: HT-H298	20733 J/g at.	1087.6	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 18 report
Heat content printed: HT-H298	20787 J/g at.	1087.6	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 17 report
Heat content printed: HT-H298	22195 J/g at.	1135.8	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 19 report
Heat content printed: HT-H298	22195 J/g at.	1135.8	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 20 report
Heat content printed: HT-H298	23769 J/g at.	1187.2	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 22 report
Heat content printed: HT-H298	23759 J/g at.	1187.2	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 21 report
Heat content printed: HT-H298	23819 J/g at.	1189.8	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 23 report
Heat content printed: HT-H298	23849 J/g at.	1189.8	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 24 report
Heat content printed: HT-H298	25452 J/g at.	1240.7	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 25 report
Heat content printed: HT-H298	25422 J/g at.	1240.7	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 26 report
Heat content printed: HT-H298	27068 J/g at.	1293.5	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 28 report
Heat content printed: HT-H298	27095 J/g at.	1293.5	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 27 report
Heat content printed: HT-H298	27327 J/g at.	1303	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 37 report
Heat content printed: HT-H298	27366 J/g at.	1303	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 38 report
Heat content printed: HT-H298	23328 J/g at.	1324	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 2 report
Heat content printed: HT-H298	23577 J/g at.	1324	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 1 report
Heat content printed: HT-H298	28495 J/g at.	1338.1	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 29 report
Heat content printed: HT-H298	28469 J/g at.	1338.1	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 30 report
Heat content printed: HT-H298	29977 J/g at.	1386.9	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 31 report
Heat content printed: HT-H298	30012 J/g at.	1386.9	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 32 report
Heat content printed: HT-H298	30332 J/g at.	1397	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 40 report
Heat content printed: HT-H298	30066 J/g at.	1397	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 39 report
Heat content printed: HT-H298	26186 J/g at.	1426	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 4 report
Heat content printed: HT-H298	26230 J/g at.	1426	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 3 report
Heat content printed: HT-H298	31576 J/g at.	1435.9	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 33 report
Heat content printed: HT-H298	31571 J/g at.	1435.9	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 34 report
Heat content printed: HT-H298	33165 J/g at.	1485.8	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1969	Table 28, p. 24, row 35 report
Heat content printed: HT-H298	33169 J/g at.	1485.8	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 36 report
Heat content printed: HT-H298	33487 J/g at.	1496	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 41 report
Heat content printed: HT-H298	33497 J/g at.	1496	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 42 report
Heat content printed: HT-H298	28740 J/g at.	1526	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 5 report
Heat content printed: HT-H298	29045 J/g at.	1526	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 6 report
Heat content printed: HT-H298	36989 J/g at.	1604	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 44 report
Heat content printed: HT-H298	37035 J/g at.	1604	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 43 report
Heat content printed: HT-H298	31957 J/g at.	1626	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 8 report
Heat content printed: HT-H298	31660 J/g at.	1626	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 7 report
Heat content printed: HT-H298	39466 J/g at.	1679	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 46 report
Heat content printed: HT-H298	39189 J/g at.	1679	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 45 report
Heat content printed: HT-H298	34680 J/g at.	1726	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 9 report
Heat content printed: HT-H298	34918 J/g at.	1726	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 10 report
Heat content printed: HT-H298	43585 J/g at.	1814	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 47 report
Heat content printed: HT-H298	44122 J/g at.	1814	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 48 report
Heat content printed: HT-H298	38166 J/g at.	1834	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 12 report
Heat content printed: HT-H298	37810 J/g at.	1834	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 11 report
Heat content printed: HT-H298	47059 J/g at.	1896	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 49 report
Heat content printed: HT-H298	47099 J/g at.	1896	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 50 report
Heat content printed: HT-H298	41707 J/g at.	1950	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 14 report
Heat content printed: HT-H298	41440 J/g at.	1950	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 13 report
Heat content printed: HT-H298	50726 J/g at.	1991	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 52 report
Heat content printed: HT-H298	50699 J/g at.	1991	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 51 report
Heat content printed: HT-H298	44840 J/g at.	2046	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 15 report
Heat content printed: HT-H298	44676 J/g at.	2046	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 16 report
Heat content printed: HT-H298	55265 J/g at.	2110	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 53 report
Heat content printed: HT-H298	55611 J/g at.	2110	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 54 report
Heat content printed: HT-H298	47490 J/g at.	2138	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 17 report
Heat content printed: HT-H298	47550 J/g at.	2138	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 18 report
Heat content printed: HT-H298	59767 J/g at.	2206	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 55 report
Heat content printed: HT-H298	59897 J/g at.	2206	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 56 report
Heat content printed: HT-H298	50130 J/g at.	2224	B12U alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Mar 1972 doi	Table 30, p. 24, row 19 report
Heat content printed: HT-H298	50259 J/g at.	2224	B12U alloy: U 0.076923	model	[1] Chevalier 2001	Table 30, p. 24, row 20 report
Heat content printed: HT-H298	64459 J/g at.	2300	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001	Table 28, p. 24, row 58 report
Heat content printed: HT-H298	64623 J/g at.	2300	B2U alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Fredrickson 1970	Table 28, p. 24, row 57 report

Crystal structure (21)

Crystal structure, B–U system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	7.473 Å	298.15	UB12 alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Bertaud 1949	Table 25, p. 22, row 1 report
Lattice a	7.4773 not_printed ± 5.500e-4	298.15	UB12 alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 25, p. 22, row 3 report
Lattice a	7.468 Å	298.15	UB12 alloy: U 0.076923	experimental	[1] Chevalier 2001 cites Blum 1954 doi	Table 25, p. 22, row 2 report
Lattice a	3.1314 not_printed ± 3.000e-4	298.15	UB2 alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 25, p. 22, row 9 report
Lattice a	3.136 Å	298.15	UB2 alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Brewer 1951	Table 25, p. 22, row 7 report
Lattice a	3.1293 not_printed ± 3.000e-4	298.15	UB2 alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 25, p. 22, row 8 report
Lattice a	7.066 Å	298.15	UB4 alloy: U 0.2	experimental	[1] Chevalier 2001 cites Bertaud 1949	Table 25, p. 22, row 5 report
Lattice a	7.075 Å	298.15	UB4 alloy: U 0.2	experimental	[1] Chevalier 2001 cites Brewer 1951	Table 25, p. 22, row 4 report
Lattice a	7.08 Å	298.15	UB4 alloy: U 0.2	experimental	[1] Chevalier 2001 cites Blum 1954 doi	Table 25, p. 22, row 6 report
Lattice c	3.9857 not_printed ± 5.000e-4	298.15	UB2 alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 25, p. 22, row 9 report
Lattice c	3.988 Å	298.15	UB2 alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Brewer 1951	Table 25, p. 22, row 7 report
Lattice c	3.9893 not_printed ± 5.000e-4	298.15	UB2 alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 25, p. 22, row 8 report
Lattice c	3.97 Å	298.15	UB4 alloy: U 0.2	experimental	[1] Chevalier 2001 cites Bertaud 1949	Table 25, p. 22, row 5 report
Lattice c	3.979 Å	298.15	UB4 alloy: U 0.2	experimental	[1] Chevalier 2001 cites Brewer 1951	Table 25, p. 22, row 4 report
Lattice c	3.978 Å	298.15	UB4 alloy: U 0.2	experimental	[1] Chevalier 2001 cites Blum 1954 doi	Table 25, p. 22, row 6 report
lattice c a	1.273 not_printed	298.15	UB2 alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 25, p. 22, row 9 report
lattice c a	1.272 not_printed	298.15	UB2 alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Brewer 1951	Table 25, p. 22, row 7 report
lattice c a	1.275 not_printed	298.15	UB2 alloy: U 0.333333	experimental	[1] Chevalier 2001 cites Howlett 1960	Table 25, p. 22, row 8 report
lattice c a	0.56 not_printed	298.15	UB4 alloy: U 0.2	experimental	[1] Chevalier 2001 cites Bertaud 1949	Table 25, p. 22, row 5 report
lattice c a	0.562 not_printed	298.15	UB4 alloy: U 0.2	experimental	[1] Chevalier 2001 cites Brewer 1951	Table 25, p. 22, row 4 report
lattice c a	0.562 not_printed	298.15	UB4 alloy: U 0.2	experimental	[1] Chevalier 2001 cites Blum 1954 doi	Table 25, p. 22, row 6 report

Sources

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

P.Y Chevalier, E Fischer, Thermodynamic modelling of the C–U and B–U binary systems, Journal of Nuclear Materials 288, 100-129 (2001). doi:10.1016/s0022-3115(00)00713-3

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). doi: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). doi: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). doi: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.

@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}
}