H–Zr phases

9 phases (tier A 4, liquid 1, gas 2, needs_review 1, interstitial_fcc_a1_compound 1); 9 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: interactive registry · full JSON · H–Zr system page · Markdown · field reference

Phases of the H–Zr system (9)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:h-zr:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 806.42–2278.77 K, x(H) 0–0.53717	0	5
FCC_A1 phase:h-zr:fcc-a1	CaF2 · C1 · cF12 · Fm-3m (225)	assigned	stable in 4 of 5 calculated diagram(s): 300–1146.15 K, x(H) 0.56381–0.66667	0	5
GAS phase:h-zr:gas	gas	gas	stable in 5 of 5 calculated diagram(s): 300.07–4000 K, x(H) 0.92778–1	0	5
H2GAS phase:h-zr:h2gas	gas	gas	stable in 5 of 5 calculated diagram(s): 300–1800 K, x(H) 1–1	0	5
HCP_A3 phase:h-zr:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 5 of 5 calculated diagram(s): 300–1994 K, x(H) 0–0.06059	0	5
LIQUID phase:h-zr:liquid	liquid	liquid	stable in 5 of 5 calculated diagram(s): 1732.86–4000 K, x(H) 0–0.00509	0	5
ZRH_B17 phase:h-zr:zrh-b17	PtS · B17 · tP4 · P4_2/mmc (131)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–526.78 K, x(H) 0.5–0.5	0	2
ZRH2_C1 phase:h-zr:zrh2-c1	CaF2 · C1 · cF12 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1141.16 K, x(H) 0.57719–0.63304	0	1
ZRH2_L2B phase:h-zr:zrh2-l2b		needs_review	stable in 4 of 4 calculated diagram(s): 300–1074.29 K, x(H) 0.64832–0.66667	2	4

BCC_A2 (H–Zr)

Id: phase:h-zr:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 806.42–2278.77 K, x(H) 0–0.53717
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:h-zr:bcc-a2
tdb: tdb:ZrH-00Koe.tdb:BCC_A2, tdb:ZrH-07Uki.tdb:BCC_A2, tdb:ZrH-12Zho.tdb:BCC_A2, tdb:ZrH-97Ans-LB.tdb:BCC_A2, tdb:ZrH-99Dup.tdb:BCC_A2

TDB models of BCC_A2 (5): PHASE and CONSTITUENT statements as written

ZrH-00Koe.tdb: BCC_A2, type code %B, sha256 23c58370af85eba9…

38: PHASE BCC_A2 %B 2 1 1.5 !
39: CONST BCC_A2 : ZR% : H VA% : !

ZrH-07Uki.tdb: BCC_A2, type code %B, sha256 c0bd52c6c65b1eae…

37: PHASE BCC_A2 %B 2 1 6 !
38: CONST BCC_A2 : ZR% : H VA% : !

ZrH-12Zho.tdb: BCC_A2, type code %B, sha256 401184aee95cbcb4…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : ZR% : H VA% : !

ZrH-97Ans-LB.tdb: BCC_A2, type code %B, sha256 f302dce07f653afb…

40: PHASE BCC_A2 %B 2 1 3 !
41: CONST BCC_A2 : ZR% : H VA% : !

ZrH-99Dup.tdb: BCC_A2, type code %B, sha256 d6349b2a6af2356a…

44: PHASE BCC_A2 %B 2 1 3 !
45: CONST BCC_A2 : ZR% : H VA% : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jnucmat.2012.01.016 Yu Zhong, Digby D. Macdonald, Thermodynamics of the Zr–H binary system related to nuclear fuel sheathing and pressure tube hydriding, Journal of Nuclear Materials 423, 87-92 (2012).
assessment that models this phase
doi:10.1016/S0022-3115(99)00125-7 N. Dupin, I. Ansara, C. Servant, C. Toffolon, C. Lemaignan, J.C. Brachet, J. Nucl. Mater., 275, 287-95(1999).
assessment that models this phase
doi:10.1016/S0925-8388(96)02652-7 I. Ansara, N. Dupin, unpublished, 1997.
assessment that models this phase
doi:10.2320/jinstmet.71.721 Shusuke Ukita, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Ti-H and Zr-H Binary Phase Diagrams, J. Japan Inst. Metals 71, 721-729 (2007).
assessment that models this phase

FCC_A1 (H–Zr)

Id: phase:h-zr:fcc-a1; status assigned
Structure: CaF2 · C1 · cF12 · Fm-3m (225); type st:c1-caf2-cf12; interstitial_fcc_a1_compound; confidence high
Stability: stable in 4 of 5 calculated diagram(s): 300–1146.15 K, x(H) 0.56381–0.66667
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:h-zr:fcc-a1
tdb: tdb:ZrH-00Koe.tdb:FCC_A1, tdb:ZrH-07Uki.tdb:FCC_A1, tdb:ZrH-12Zho.tdb:FCC_A1, tdb:ZrH-97Ans-LB.tdb:FCC_A1, tdb:ZrH-99Dup.tdb:FCC_A1

TDB models of FCC_A1 (5): PHASE and CONSTITUENT statements as written

ZrH-00Koe.tdb: FCC_A1, type code %A, sha256 23c58370af85eba9…

33: PHASE FCC_A1 %A 2 1 2 !
34: CONST FCC_A1 : ZR : H% VA : !

ZrH-07Uki.tdb: FCC_A1, type code %A, sha256 c0bd52c6c65b1eae…

32: PHASE FCC_A1 %A 2 1 2 !
33: CONST FCC_A1 : ZR : H% VA : !

ZrH-12Zho.tdb: FCC_A1, type code %A, sha256 401184aee95cbcb4…

34: PHASE FCC_A1 %A 2 1 2 !
35: CONST FCC_A1 : ZR : H% VA : !

ZrH-97Ans-LB.tdb: FCC_A1, type code %A, sha256 f302dce07f653afb…

35: PHASE FCC_A1 %A 2 1 1 !
36: CONST FCC_A1 : ZR : H VA% : !

ZrH-99Dup.tdb: FCC_A1, type code %A, sha256 d6349b2a6af2356a…

39: PHASE FCC_A1 %A 2 1 2 !
40: CONST FCC_A1 : ZR : H% VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jnucmat.2012.01.016 Yu Zhong, Digby D. Macdonald, Thermodynamics of the Zr–H binary system related to nuclear fuel sheathing and pressure tube hydriding, Journal of Nuclear Materials 423, 87-92 (2012).
assessment that models this phase
doi:10.1016/S0022-3115(99)00125-7 N. Dupin, I. Ansara, C. Servant, C. Toffolon, C. Lemaignan, J.C. Brachet, J. Nucl. Mater., 275, 287-95(1999).
assessment that models this phase
doi:10.1016/S0925-8388(96)02652-7 I. Ansara, N. Dupin, unpublished, 1997.
assessment that models this phase
doi:10.2320/jinstmet.71.721 Shusuke Ukita, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Ti-H and Zr-H Binary Phase Diagrams, J. Japan Inst. Metals 71, 721-729 (2007).
assessment that models this phase

GAS (H–Zr)

Id: phase:h-zr:gas; status assigned
Structure: gas; type st:gas; gas; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 300.07–4000 K, x(H) 0.92778–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:h-zr:gas
tdb: tdb:ZrH-00Koe.tdb:GAS, tdb:ZrH-07Uki.tdb:GAS, tdb:ZrH-12Zho.tdb:GAS, tdb:ZrH-97Ans-LB.tdb:GAS, tdb:ZrH-99Dup.tdb:GAS

TDB models of GAS (5): PHASE and CONSTITUENT statements as written

ZrH-00Koe.tdb: GAS, type code %, sha256 23c58370af85eba9…

47: PHASE GAS:G % 1 1 !
48: CONST GAS:G : H H2 ZR ZR2 ZRH : !

ZrH-07Uki.tdb: GAS, type code %, sha256 c0bd52c6c65b1eae…

56: PHASE GAS:G % 1 1 !
57: CONST GAS:G : H H2 ZR ZR2 ZRH : !

ZrH-12Zho.tdb: GAS, type code %, sha256 401184aee95cbcb4…

58: PHASE GAS:G % 1 1 !
59: CONST GAS:G : H H2 ZR ZR2 ZRH : !

ZrH-97Ans-LB.tdb: GAS, type code %, sha256 f302dce07f653afb…

59: PHASE GAS:G % 1 1 !
60: CONST GAS:G : H H2 ZR ZR2 ZRH : !

ZrH-99Dup.tdb: GAS, type code %, sha256 d6349b2a6af2356a…

58: PHASE GAS:G % 1 1 !
59: CONST GAS:G : H H2 ZR ZR2 ZRH : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jnucmat.2012.01.016 Yu Zhong, Digby D. Macdonald, Thermodynamics of the Zr–H binary system related to nuclear fuel sheathing and pressure tube hydriding, Journal of Nuclear Materials 423, 87-92 (2012).
assessment that models this phase
doi:10.1016/S0022-3115(99)00125-7 N. Dupin, I. Ansara, C. Servant, C. Toffolon, C. Lemaignan, J.C. Brachet, J. Nucl. Mater., 275, 287-95(1999).
assessment that models this phase
doi:10.1016/S0925-8388(96)02652-7 I. Ansara, N. Dupin, unpublished, 1997.
assessment that models this phase
doi:10.2320/jinstmet.71.721 Shusuke Ukita, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Ti-H and Zr-H Binary Phase Diagrams, J. Japan Inst. Metals 71, 721-729 (2007).
assessment that models this phase

H2GAS (H–Zr)

Id: phase:h-zr:h2gas; status assigned
Structure: gas; type st:gas; gas; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 300–1800 K, x(H) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:h-zr:h2gas
tdb: tdb:ZrH-00Koe.tdb:H2GAS, tdb:ZrH-07Uki.tdb:H2GAS, tdb:ZrH-12Zho.tdb:H2GAS, tdb:ZrH-97Ans-LB.tdb:H2GAS, tdb:ZrH-99Dup.tdb:H2GAS

TDB models of H2GAS (5): PHASE and CONSTITUENT statements as written

ZrH-00Koe.tdb: H2GAS, type code %, sha256 23c58370af85eba9…

50: PHASE H2GAS % 1 1 !
51: CONST H2GAS : H2 : !

ZrH-07Uki.tdb: H2GAS, type code %, sha256 c0bd52c6c65b1eae…

59: PHASE H2GAS % 1 1 !
60: CONST H2GAS : H2 : !

ZrH-12Zho.tdb: H2GAS, type code %, sha256 401184aee95cbcb4…

61: PHASE H2GAS % 1 1 !
62: CONST H2GAS : H2 : !

ZrH-97Ans-LB.tdb: H2GAS, type code %, sha256 f302dce07f653afb…

62: PHASE H2GAS % 1 1 !
63: CONST H2GAS : H2 : !

ZrH-99Dup.tdb: H2GAS, type code %, sha256 d6349b2a6af2356a…

61: PHASE H2GAS % 1 1 !
62: CONST H2GAS : H2 : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jnucmat.2012.01.016 Yu Zhong, Digby D. Macdonald, Thermodynamics of the Zr–H binary system related to nuclear fuel sheathing and pressure tube hydriding, Journal of Nuclear Materials 423, 87-92 (2012).
assessment that models this phase
doi:10.1016/S0022-3115(99)00125-7 N. Dupin, I. Ansara, C. Servant, C. Toffolon, C. Lemaignan, J.C. Brachet, J. Nucl. Mater., 275, 287-95(1999).
assessment that models this phase
doi:10.1016/S0925-8388(96)02652-7 I. Ansara, N. Dupin, unpublished, 1997.
assessment that models this phase
doi:10.2320/jinstmet.71.721 Shusuke Ukita, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Ti-H and Zr-H Binary Phase Diagrams, J. Japan Inst. Metals 71, 721-729 (2007).
assessment that models this phase

HCP_A3 (H–Zr)

Id: phase:h-zr:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 300–1994 K, x(H) 0–0.06059
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:h-zr:hcp-a3
tdb: tdb:ZrH-00Koe.tdb:HCP_A3, tdb:ZrH-07Uki.tdb:HCP_A3, tdb:ZrH-12Zho.tdb:HCP_A3, tdb:ZrH-97Ans-LB.tdb:HCP_A3, tdb:ZrH-99Dup.tdb:HCP_A3

TDB models of HCP_A3 (5): PHASE and CONSTITUENT statements as written

ZrH-00Koe.tdb: HCP_A3, type code %A, sha256 23c58370af85eba9…

44: PHASE HCP_A3 %A 2 1 1 !
45: CONST HCP_A3 : ZR : H VA% : !

ZrH-07Uki.tdb: HCP_A3, type code %A, sha256 c0bd52c6c65b1eae…

43: PHASE HCP_A3 %A 2 1 2 !
44: CONST HCP_A3 : ZR : H VA% : !

ZrH-12Zho.tdb: HCP_A3, type code %A, sha256 401184aee95cbcb4…

45: PHASE HCP_A3 %A 2 1 1 !
46: CONST HCP_A3 : ZR : H VA% : !

ZrH-97Ans-LB.tdb: HCP_A3, type code %A, sha256 f302dce07f653afb…

46: PHASE HCP_A3 %A 2 1 1 !
47: CONST HCP_A3 : ZR : H VA% : !

ZrH-99Dup.tdb: HCP_A3, type code %A, sha256 d6349b2a6af2356a…

50: PHASE HCP_A3 %A 2 1 1 !
51: CONST HCP_A3 : ZR : H VA% : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jnucmat.2012.01.016 Yu Zhong, Digby D. Macdonald, Thermodynamics of the Zr–H binary system related to nuclear fuel sheathing and pressure tube hydriding, Journal of Nuclear Materials 423, 87-92 (2012).
assessment that models this phase
doi:10.1016/S0022-3115(99)00125-7 N. Dupin, I. Ansara, C. Servant, C. Toffolon, C. Lemaignan, J.C. Brachet, J. Nucl. Mater., 275, 287-95(1999).
assessment that models this phase
doi:10.1016/S0925-8388(96)02652-7 I. Ansara, N. Dupin, unpublished, 1997.
assessment that models this phase
doi:10.2320/jinstmet.71.721 Shusuke Ukita, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Ti-H and Zr-H Binary Phase Diagrams, J. Japan Inst. Metals 71, 721-729 (2007).
assessment that models this phase

LIQUID (H–Zr)

Id: phase:h-zr:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 5 of 5 calculated diagram(s): 1732.86–4000 K, x(H) 0–0.00509
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:h-zr:liquid
tdb: tdb:ZrH-00Koe.tdb:LIQUID, tdb:ZrH-07Uki.tdb:LIQUID, tdb:ZrH-12Zho.tdb:LIQUID, tdb:ZrH-97Ans-LB.tdb:LIQUID, tdb:ZrH-99Dup.tdb:LIQUID

TDB models of LIQUID (5): PHASE and CONSTITUENT statements as written

ZrH-00Koe.tdb: LIQUID, type code %, sha256 23c58370af85eba9…

28: PHASE LIQUID:L % 1 1 !
29: CONST LIQUID:L : ZR : !

ZrH-07Uki.tdb: LIQUID, type code %, sha256 c0bd52c6c65b1eae…

27: PHASE LIQUID:L % 1 1 !
28: CONST LIQUID:L : ZR : !

ZrH-12Zho.tdb: LIQUID, type code %, sha256 401184aee95cbcb4…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : ZR : !

ZrH-97Ans-LB.tdb: LIQUID, type code %, sha256 f302dce07f653afb…

30: PHASE LIQUID:L % 1 1 !
31: CONST LIQUID:L : H ZR : !

ZrH-99Dup.tdb: LIQUID, type code %, sha256 d6349b2a6af2356a…

34: PHASE LIQUID:L % 1 1 !
35: CONST LIQUID:L : ZR : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jnucmat.2012.01.016 Yu Zhong, Digby D. Macdonald, Thermodynamics of the Zr–H binary system related to nuclear fuel sheathing and pressure tube hydriding, Journal of Nuclear Materials 423, 87-92 (2012).
assessment that models this phase
doi:10.1016/S0022-3115(99)00125-7 N. Dupin, I. Ansara, C. Servant, C. Toffolon, C. Lemaignan, J.C. Brachet, J. Nucl. Mater., 275, 287-95(1999).
assessment that models this phase
doi:10.1016/S0925-8388(96)02652-7 I. Ansara, N. Dupin, unpublished, 1997.
assessment that models this phase
doi:10.2320/jinstmet.71.721 Shusuke Ukita, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Ti-H and Zr-H Binary Phase Diagrams, J. Japan Inst. Metals 71, 721-729 (2007).
assessment that models this phase

ZRH_B17 (H–Zr)

Id: phase:h-zr:zrh-b17; status assigned
Structure: PtS · B17 · tP4 · P4_2/mmc (131); type st:b17-pts-tp4; tier A: standard phase name; confidence high
Stoichiometry: H 0.5000, Zr 0.5000
Stability: stable in 2 of 2 calculated diagram(s): 300–526.78 K, x(H) 0.5–0.5
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:h-zr:zrh-b17
tdb: tdb:ZrH-07Uki.tdb:ZRH_B17, tdb:ZrH-12Zho.tdb:ZRH_B17

TDB models of ZRH_B17 (2): PHASE and CONSTITUENT statements as written

ZrH-07Uki.tdb: ZRH_B17, type code %, sha256 c0bd52c6c65b1eae…

48: PHASE ZRH_B17 % 2 1 1 !
49: CONST ZRH_B17 : ZR : H : !

ZrH-12Zho.tdb: ZRH_B17, type code %, sha256 401184aee95cbcb4…

50: PHASE ZRH_B17 % 2 1 1 !
51: CONST ZRH_B17 : ZR : H : !

Example references (2 of 2; assessments first):

doi:10.1016/j.jnucmat.2012.01.016 Yu Zhong, Digby D. Macdonald, Thermodynamics of the Zr–H binary system related to nuclear fuel sheathing and pressure tube hydriding, Journal of Nuclear Materials 423, 87-92 (2012).
assessment that models this phase
doi:10.2320/jinstmet.71.721 Shusuke Ukita, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Ti-H and Zr-H Binary Phase Diagrams, J. Japan Inst. Metals 71, 721-729 (2007).
assessment that models this phase

ZRH2_C1 (H–Zr)

Id: phase:h-zr:zrh2-c1; status assigned
Structure: CaF2 · C1 · cF12 · Fm-3m (225); type st:c1-caf2-cf12; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–1141.16 K, x(H) 0.57719–0.63304
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:h-zr:zrh2-c1
tdb: tdb:ZrH-97Ans-LB.tdb:ZRH2_C1

TDB models of ZRH2_C1 (1): PHASE and CONSTITUENT statements as written

ZrH-97Ans-LB.tdb: ZRH2_C1, type code %, sha256 f302dce07f653afb…

51: PHASE ZRH2_C1 % 2 1 2 !
52: CONST ZRH2_C1 : ZR : H% VA : !

Example references (1 of 1; assessments first):

doi:10.1016/S0925-8388(96)02652-7 I. Ansara, N. Dupin, unpublished, 1997.
assessment that models this phase

ZRH2_L2B (H–Zr)

Id: phase:h-zr:zrh2-l2b; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:L2B; no_structure_token
Candidate (sgte_mmc2): ThH2 · L'2_b · tI6 · I4/mmm (139) — Hallstedt 2025 mmc2 row for ZRH2_L2B: ZrH2-epsilon
Candidate (tdb_comment): ThH2 · tI6 · I4/mmm — ZrH-07Uki.tdb: 'Prototype ThH2 (tI6, I4/mmm), epsilon'
Candidate (tdb_comment): ThH2 · tI6 · I4/mmm — ZrH-12Zho.tdb: 'Prototype ThH2 (tI6, I4/mmm), epsilon'
Candidate (tdb_comment): ThH2 · tI6 · I4/mmm — ZrH-97Ans-LB.tdb: 'Prototype ThH2 (tI6, I4/mmm), epsilon'
Candidate (tdb_comment): ThH2 · tI6 · I4/mmm — ZrH-99Dup.tdb: 'Prototype ThH2 (tI6, I4/mmm), epsilon'
Stability: stable in 4 of 4 calculated diagram(s): 300–1074.29 K, x(H) 0.64832–0.66667
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (6): corpus: corpus:phase:h-zr:zrh2-l2b
paper: paper:10.1016/j.jnucmat.2012.01.016:ε-ZrH2
tdb: tdb:ZrH-07Uki.tdb:ZRH2_L2B, tdb:ZrH-12Zho.tdb:ZRH2_L2B, tdb:ZrH-97Ans-LB.tdb:ZRH2_L2B, tdb:ZrH-99Dup.tdb:ZRH2_L2B

TDB models of ZRH2_L2B (4): PHASE and CONSTITUENT statements as written

ZrH-07Uki.tdb: ZRH2_L2B, type code %, sha256 c0bd52c6c65b1eae…

53: PHASE ZRH2_L2B % 2 1 2 !
54: CONST ZRH2_L2B : ZR : H% VA : !

ZrH-12Zho.tdb: ZRH2_L2B, type code %, sha256 401184aee95cbcb4…

55: PHASE ZRH2_L2B % 2 1 2 !
56: CONST ZRH2_L2B : ZR : H% VA : !

ZrH-97Ans-LB.tdb: ZRH2_L2B, type code %, sha256 f302dce07f653afb…

56: PHASE ZRH2_L2B % 2 1 2 !
57: CONST ZRH2_L2B : ZR : H% VA : !

ZrH-99Dup.tdb: ZRH2_L2B, type code %, sha256 d6349b2a6af2356a…

55: PHASE ZRH2_L2B % 2 1 2 !
56: CONST ZRH2_L2B : ZR : H% VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.jnucmat.2012.01.016 Yu Zhong, Digby D. Macdonald, Thermodynamics of the Zr–H binary system related to nuclear fuel sheathing and pressure tube hydriding, Journal of Nuclear Materials 423, 87-92 (2012).
assessment that models this phase; reports values for this phase
doi:10.1016/S0022-3115(99)00125-7 N. Dupin, I. Ansara, C. Servant, C. Toffolon, C. Lemaignan, J.C. Brachet, J. Nucl. Mater., 275, 287-95(1999).
assessment that models this phase; cited as the source of values for this phase
doi:10.1016/S0925-8388(96)02652-7 I. Ansara, N. Dupin, unpublished, 1997.
assessment that models this phase
doi:10.2320/jinstmet.71.721 Shusuke Ukita, Hiroshi Ohtani, Mitsuhiro Hasebe, Thermodynamic Analysis of the Ti-H and Zr-H Binary Phase Diagrams, J. Japan Inst. Metals 71, 721-729 (2007).
assessment that models this phase

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735970
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 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; 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); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). 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_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@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}
}