Hg–In phases

9 phases (tier A 5, tier C 2, liquid 1, needs_review 1); 3 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 · Hg–In system page · Markdown · field reference

Phases of the Hg–In system (9)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
RHOMBO_A10 phase:hg-in:a10-rhombo	alpha-Hg · A10 · hR1 · R-3m (166)	tier A: standard phase name	not stable in 2 calculated diagram(s)	4	2
TETRAGONAL_A6 phase:hg-in:a6-tetragonal	In · A6 · tI2 · I4/mmm (139)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–524.75 K, x(In) 0.94442–1	0	2
BCC_A2 phase:hg-in:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	not stable in 2 calculated diagram(s)	0	2
FCC_A1 phase:hg-in:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–2500 K, x(In) 0–0.93234	6	2
GAMMA_PU phase:hg-in:gamma-pu	gamma-Pu · oF8 · Fddd (70)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	not stable in 2 calculated diagram(s)	4	2
HCP_A3 phase:hg-in:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
HGIN phase:hg-in:hgin	HgIn · hR2 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	not stable in 2 calculated diagram(s)	8	2
HGIN2 phase:hg-in:hgin2		needs_review	not stable in 2 calculated diagram(s)	2	2
LIQUID phase:hg-in:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 300–2500 K, x(In) 0–1	12	2

RHOMBO_A10 (Hg–In)

Id: phase:hg-in:a10-rhombo; status assigned
Structure: alpha-Hg · A10 · hR1 · R-3m (166); type st:a10-alpha-hg-hr1; tier A: standard phase name; confidence high
Stability: not stable in 2 calculated diagram(s)
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:hg-in:a10-rhombo
paper: paper:10.1016/j.tca.2009.02.020:Rhombo
tdb: tdb:HgIn-09Gie.tdb:RHOMBO_A10, tdb:HgIn-98Han.tdb:RHOMBO_A10

TDB models of RHOMBO_A10 (2): PHASE and CONSTITUENT statements as written

HgIn-09Gie.tdb: RHOMBO_A10, type code %, sha256 6cbb48c284a17292…

51: PHASE RHOMBO_A10 % 1 1 !
52: CONST RHOMBO_A10 : HG% IN : !

HgIn-98Han.tdb: RHOMBO_A10, type code %, sha256 0316d13b9f5f843a…

51: PHASE RHOMBO_A10 % 1 1 !
52: CONST RHOMBO_A10 : HG% IN : !

Example references (2 of 2; assessments first):

doi:10.1016/j.tca.2009.02.020 Wojcieh Gierlotka, Piotr Jarosz, Sinn-wen Chen, Liquid phase vapor pressure measurement and thermodynamics assessment of the Hg–In binary system, Thermochimica Acta 491, 29-34 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(98)00036-4 S.C. Hansen, Calphad, 22, 359-73(1998).
assessment that models this phase

TETRAGONAL_A6 (Hg–In)

Id: phase:hg-in:a6-tetragonal; status assigned
Structure: In · A6 · tI2 · I4/mmm (139); type st:a6-in-ti2; tier A: standard phase name; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 300–524.75 K, x(In) 0.94442–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:hg-in:a6-tetragonal
tdb: tdb:HgIn-09Gie.tdb:TETRAGONAL_A6, tdb:HgIn-98Han.tdb:TETRAGONAL_A6

TDB models of TETRAGONAL_A6 (2): PHASE and CONSTITUENT statements as written

HgIn-09Gie.tdb: TETRAGONAL_A6, type code %, sha256 6cbb48c284a17292…

46: PHASE TETRAGONAL_A6 % 1 1 !
47: CONST TETRAGONAL_A6 : HG IN% : !

HgIn-98Han.tdb: TETRAGONAL_A6, type code %, sha256 0316d13b9f5f843a…

46: PHASE TETRAGONAL_A6 % 1 1 !
47: CONST TETRAGONAL_A6 : HG IN% : !

Example references (2 of 2; assessments first):

doi:10.1016/j.tca.2009.02.020 Wojcieh Gierlotka, Piotr Jarosz, Sinn-wen Chen, Liquid phase vapor pressure measurement and thermodynamics assessment of the Hg–In binary system, Thermochimica Acta 491, 29-34 (2009).
assessment that models this phase
doi:10.1016/S0364-5916(98)00036-4 S.C. Hansen, Calphad, 22, 359-73(1998).
assessment that models this phase

BCC_A2 (Hg–In)

Id: phase:hg-in:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stoichiometry: In 1.0000
Stability: not stable in 2 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:hg-in:bcc-a2
tdb: tdb:HgIn-09Gie.tdb:BCC_A2, tdb:HgIn-98Han.tdb:BCC_A2

TDB models of BCC_A2 (2): PHASE and CONSTITUENT statements as written

HgIn-09Gie.tdb: BCC_A2, type code %B, sha256 6cbb48c284a17292…

36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : IN : VA : !

HgIn-98Han.tdb: BCC_A2, type code %B, sha256 0316d13b9f5f843a…

36: PHASE BCC_A2 %B 2 1 3 !
37: CONST BCC_A2 : IN : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.tca.2009.02.020 Wojcieh Gierlotka, Piotr Jarosz, Sinn-wen Chen, Liquid phase vapor pressure measurement and thermodynamics assessment of the Hg–In binary system, Thermochimica Acta 491, 29-34 (2009).
assessment that models this phase
doi:10.1016/S0364-5916(98)00036-4 S.C. Hansen, Calphad, 22, 359-73(1998).
assessment that models this phase

FCC_A1 (Hg–In)

Id: phase:hg-in:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 300–2500 K, x(In) 0–0.93234
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:hg-in:fcc-a1
paper: paper:10.1016/j.tca.2009.02.020:FCC_A1
tdb: tdb:HgIn-09Gie.tdb:FCC_A1, tdb:HgIn-98Han.tdb:FCC_A1

TDB models of FCC_A1 (2): PHASE and CONSTITUENT statements as written

HgIn-09Gie.tdb: FCC_A1, type code %A, sha256 6cbb48c284a17292…

31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : HG IN% : VA : !

HgIn-98Han.tdb: FCC_A1, type code %A, sha256 0316d13b9f5f843a…

31: PHASE FCC_A1 %A 2 1 1 !
32: CONST FCC_A1 : HG IN% : VA : !

Example references (2 of 2; assessments first):

doi:10.1016/j.tca.2009.02.020 Wojcieh Gierlotka, Piotr Jarosz, Sinn-wen Chen, Liquid phase vapor pressure measurement and thermodynamics assessment of the Hg–In binary system, Thermochimica Acta 491, 29-34 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(98)00036-4 S.C. Hansen, Calphad, 22, 359-73(1998).
assessment that models this phase

GAMMA_PU (Hg–In)

Id: phase:hg-in:gamma-pu; status assigned
Structure: gamma-Pu · oF8 · Fddd (70); type st:gamma-pu-of8; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (name_has_descriptive_tokens:PU, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stability: not stable in 2 calculated diagram(s)
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:hg-in:gamma-pu
paper: paper:10.1016/j.tca.2009.02.020:FCO
tdb: tdb:HgIn-09Gie.tdb:GAMMA_PU, tdb:HgIn-98Han.tdb:GAMMA_PU

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

HgIn-09Gie.tdb: GAMMA_PU, type code %, sha256 6cbb48c284a17292…

56: PHASE GAMMA_PU % 1 1 !
57: CONST GAMMA_PU : HG IN : !

HgIn-98Han.tdb: GAMMA_PU, type code %, sha256 0316d13b9f5f843a…

56: PHASE GAMMA_PU % 1 1 !
57: CONST GAMMA_PU : HG IN : !

Example references (2 of 2; assessments first):

doi:10.1016/j.tca.2009.02.020 Wojcieh Gierlotka, Piotr Jarosz, Sinn-wen Chen, Liquid phase vapor pressure measurement and thermodynamics assessment of the Hg–In binary system, Thermochimica Acta 491, 29-34 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(98)00036-4 S.C. Hansen, Calphad, 22, 359-73(1998).
assessment that models this phase

HCP_A3 (Hg–In)

Id: phase:hg-in: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: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:hg-in:hcp-a3
tdb: tdb:HgIn-98Han.tdb:HCP_A3

TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

HgIn-98Han.tdb: HCP_A3, type code %A, sha256 0316d13b9f5f843a…

41: PHASE HCP_A3 %A 2 1 0.5 !
42: CONST HCP_A3 : HG IN : VA: !

Example references (1 of 1; assessments first):

doi:10.1016/S0364-5916(98)00036-4 S.C. Hansen, Calphad, 22, 359-73(1998).
assessment that models this phase

HGIN (Hg–In)

Id: phase:hg-in:hgin; status assigned
Structure: HgIn · hR2 · R-3m (166); type st:hgin-hr2; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_structure_token, off_stoichiometric_model); structure as stated in the SGTE crystallographic table for this phase name and system
Stability: not stable in 2 calculated diagram(s)
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:hg-in:hgin
paper: paper:10.1016/j.tca.2009.02.020:HgIn
tdb: tdb:HgIn-09Gie.tdb:HGIN, tdb:HgIn-98Han.tdb:HGIN

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

HgIn-09Gie.tdb: HGIN, type code %, sha256 6cbb48c284a17292…

61: PHASE HGIN % 2 1 1 !
62: CONST HGIN : HG% IN : HG IN% : !

HgIn-98Han.tdb: HGIN, type code %, sha256 0316d13b9f5f843a…

61: PHASE HGIN % 2 1 1 !
62: CONST HGIN : HG% IN : HG IN% : !

Example references (2 of 2; assessments first):

doi:10.1016/j.tca.2009.02.020 Wojcieh Gierlotka, Piotr Jarosz, Sinn-wen Chen, Liquid phase vapor pressure measurement and thermodynamics assessment of the Hg–In binary system, Thermochimica Acta 491, 29-34 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(98)00036-4 S.C. Hansen, Calphad, 22, 359-73(1998).
assessment that models this phase

HGIN2 (Hg–In)

Id: phase:hg-in:hgin2; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_row_incomplete
Candidate (literature_printed): (HgIn2) · ? — printed with a label mapped to this phase
Candidate (sgte_mmc2): (HgIn2) — Hallstedt 2025 mmc2 row for HGIN2: HgIn2
Stoichiometry: Hg 0.3333, In 0.6667
Stability: not stable in 2 calculated diagram(s)
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:hg-in:hgin2
paper: paper:10.1016/j.tca.2009.02.020:HgIn2
tdb: tdb:HgIn-09Gie.tdb:HGIN2, tdb:HgIn-98Han.tdb:HGIN2

TDB models of HGIN2 (2): PHASE and CONSTITUENT statements as written

HgIn-09Gie.tdb: HGIN2, type code %, sha256 6cbb48c284a17292…

66: PHASE HGIN2 % 2 1 2 !
67: CONST HGIN2 : HG : IN : !

HgIn-98Han.tdb: HGIN2, type code %, sha256 0316d13b9f5f843a…

66: PHASE HGIN2 % 2 1 2 !
67: CONST HGIN2 : HG : IN : !

Example references (2 of 2; assessments first):

doi:10.1016/j.tca.2009.02.020 Wojcieh Gierlotka, Piotr Jarosz, Sinn-wen Chen, Liquid phase vapor pressure measurement and thermodynamics assessment of the Hg–In binary system, Thermochimica Acta 491, 29-34 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(98)00036-4 S.C. Hansen, Calphad, 22, 359-73(1998).
assessment that models this phase

LIQUID (Hg–In)

Id: phase:hg-in:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 300–2500 K, x(In) 0–1
Literature: 12 values (12 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:hg-in:liquid
paper: paper:10.1016/j.tca.2009.02.020:L
tdb: tdb:HgIn-09Gie.tdb:LIQUID, tdb:HgIn-98Han.tdb:LIQUID

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

HgIn-09Gie.tdb: LIQUID, type code %, sha256 6cbb48c284a17292…

26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : HG IN : !

HgIn-98Han.tdb: LIQUID, type code %, sha256 0316d13b9f5f843a…

26: PHASE LIQUID:L % 1 1 !
27: CONST LIQUID:L : HG IN : !

Example references (2 of 2; assessments first):

doi:10.1016/j.tca.2009.02.020 Wojcieh Gierlotka, Piotr Jarosz, Sinn-wen Chen, Liquid phase vapor pressure measurement and thermodynamics assessment of the Hg–In binary system, Thermochimica Acta 491, 29-34 (2009).
assessment that models this phase; reports values for this phase
doi:10.1016/S0364-5916(98)00036-4 S.C. Hansen, Calphad, 22, 359-73(1998).
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}
}