In–Ir phases

8 phases (tier A 6, tier C 1, liquid 1); 6 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 · In–Ir system page · Markdown · field reference

Phases of the In–Ir system (8)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
TETRAGONAL_A6 phase:in-ir:a6-tetragonal	In · A6 · tI2 · I4/mmm (139)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–429.75 K, x(Ir) 0–0	6	1
BCC_A2 phase:in-ir:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
FCC_A1 phase:in-ir:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–3998.99 K, x(Ir) 0.96261–1	6	1
HCP_A3 phase:in-ir:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
IN2IR_CB phase:in-ir:in2ir-cb	CuMg2 · C_b · oF48 · Fddd (70)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1461.07 K, x(Ir) 0.30808–0.38395	17	1
IN3IR_HT phase:in-ir:in3ir	In3Ir · tP16 · P4_2/mnm (136)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 620.57–1254.08 K, x(Ir) 0.23657–0.24999	15	1
IN3IR_D011 phase:in-ir:in3ir-d011	Fe3C · D0_11 · oP16 · Pnma (62)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–634 K, x(Ir) 0.23822–0.25	15	1
LIQUID phase:in-ir:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 429.75–4000 K, x(Ir) 0–1	26	1

TETRAGONAL_A6 (In–Ir)

Id: phase:in-ir:a6-tetragonal; status assigned
Structure: In · A6 · tI2 · I4/mmm (139); type st:a6-in-ti2; tier A: standard phase name; confidence high
Stoichiometry: In 1.0000
Stability: stable in 1 of 1 calculated diagram(s): 300–429.75 K, x(Ir) 0–0
Literature: 6 values (5 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:in-ir:a6-tetragonal, corpus:phase:in-ir:tetragonal-a6
paper: paper:10.1016/j.tca.2010.12.019:In
tdb: tdb:InIr-11Ser.tdb:TETRAGONAL_A6

TDB models of TETRAGONAL_A6 (1): PHASE and CONSTITUENT statements as written

InIr-11Ser.tdb: TETRAGONAL_A6, type code %, sha256 08d4e25130797918…

45: PHASE TETRAGONAL_A6 % 1 1 !
46: CONST TETRAGONAL_A6 : IN : !

Example references (3 of 3; assessments first):

doi:10.1016/j.tca.2010.12.019 Colette Servant, Mohamed Idbenali, Thermodynamic assessment of the In–Ir system in the In rich part, Thermochimica Acta 517, 1-8 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(02)00287-6 Hans Flandorfer, Klaus W Richter, Erhard Hayer, Herbert Ipser, Gabriella Borzone, Jean-Pierre Bros, The binary system In–Ir: a new investigation of phase relationships, crystal structures, and enthalpies of mixing, Journal of Alloys and Compounds 345, 130-139 (2002).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00507-1 P. Anres, P. Fossati, K. Richter, M. Gambino, M. Gaune-Escard, J.-P. Bros, Thermodynamics of the [Ir–In] system, Journal of Alloys and Compounds 296, 119-127 (2000).
cited as the source of values for this phase

BCC_A2 (In–Ir)

Id: phase:in-ir:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; 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:in-ir:bcc-a2
tdb: tdb:InIr-11Ser.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

InIr-11Ser.tdb: BCC_A2, type code %B, sha256 08d4e25130797918…

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

Example references (1 of 1; assessments first):

doi:10.1016/j.tca.2010.12.019 Colette Servant, Mohamed Idbenali, Thermodynamic assessment of the In–Ir system in the In rich part, Thermochimica Acta 517, 1-8 (2011).
assessment that models this phase

FCC_A1 (In–Ir)

Id: phase:in-ir: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 1 of 1 calculated diagram(s): 300–3998.99 K, x(Ir) 0.96261–1
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:in-ir:fcc-a1
paper: paper:10.1016/j.tca.2010.12.019:(Ir)
tdb: tdb:InIr-11Ser.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

InIr-11Ser.tdb: FCC_A1, type code %A, sha256 08d4e25130797918…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : IN IR% : VA : !

Example references (3 of 3; assessments first):

doi:10.1016/j.tca.2010.12.019 Colette Servant, Mohamed Idbenali, Thermodynamic assessment of the In–Ir system in the In rich part, Thermochimica Acta 517, 1-8 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(02)00287-6 Hans Flandorfer, Klaus W Richter, Erhard Hayer, Herbert Ipser, Gabriella Borzone, Jean-Pierre Bros, The binary system In–Ir: a new investigation of phase relationships, crystal structures, and enthalpies of mixing, Journal of Alloys and Compounds 345, 130-139 (2002).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00507-1 P. Anres, P. Fossati, K. Richter, M. Gambino, M. Gaune-Escard, J.-P. Bros, Thermodynamics of the [Ir–In] system, Journal of Alloys and Compounds 296, 119-127 (2000).
cited as the source of values for this phase

HCP_A3 (In–Ir)

Id: phase:in-ir: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:in-ir:hcp-a3
tdb: tdb:InIr-11Ser.tdb:HCP_A3

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

InIr-11Ser.tdb: HCP_A3, type code %A, sha256 08d4e25130797918…

40: PHASE HCP_A3 %A 2 1 0.5 !
41: CONST HCP_A3 : IN IR : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.tca.2010.12.019 Colette Servant, Mohamed Idbenali, Thermodynamic assessment of the In–Ir system in the In rich part, Thermochimica Acta 517, 1-8 (2011).
assessment that models this phase

IN2IR_CB (In–Ir)

Id: phase:in-ir:in2ir-cb; status assigned
Structure: CuMg2 · C_b · oF48 · Fddd (70); type st:c-b-cumg2-of48; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in InIr-11Ser.tdb also describes the disordered state
Stability: stable in 1 of 1 calculated diagram(s): 300–1461.07 K, x(Ir) 0.30808–0.38395
Literature: 17 values (17 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:in-ir:in2ir-cb
paper: paper:10.1016/j.tca.2010.12.019:In2 Ir, paper:10.1016/j.tca.2010.12.019:In2Ir
tdb: tdb:InIr-11Ser.tdb:IN2IR_CB

TDB models of IN2IR_CB (1): PHASE and CONSTITUENT statements as written

InIr-11Ser.tdb: IN2IR_CB, type code %, sha256 08d4e25130797918…

60: PHASE IN2IR_CB % 2 2 1 !
61: CONST IN2IR_CB : IN% IR : IN IR% : !

Example references (3 of 3; assessments first):

doi:10.1016/j.tca.2010.12.019 Colette Servant, Mohamed Idbenali, Thermodynamic assessment of the In–Ir system in the In rich part, Thermochimica Acta 517, 1-8 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(02)00287-6 Hans Flandorfer, Klaus W Richter, Erhard Hayer, Herbert Ipser, Gabriella Borzone, Jean-Pierre Bros, The binary system In–Ir: a new investigation of phase relationships, crystal structures, and enthalpies of mixing, Journal of Alloys and Compounds 345, 130-139 (2002).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00507-1 P. Anres, P. Fossati, K. Richter, M. Gambino, M. Gaune-Escard, J.-P. Bros, Thermodynamics of the [Ir–In] system, Journal of Alloys and Compounds 296, 119-127 (2000).
cited as the source of values for this phase

IN3IR_HT (In–Ir)

Id: phase:in-ir:in3ir; status assigned
Structure: In3Ir · tP16 · P4_2/mnm (136); type st:in3ir-tp16; 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: stable in 1 of 1 calculated diagram(s): 620.57–1254.08 K, x(Ir) 0.23657–0.24999
Literature: 15 values (14 accepted) from 1 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:in-ir:in3ir, corpus:phase:in-ir:in3ir-ht
paper: paper:10.1016/j.tca.2010.12.019:In3 Ir-HT, paper:10.1016/j.tca.2010.12.019:In3 Ir_HT, paper:10.1016/j.tca.2010.12.019:In3Ir-HT, paper:10.1016/j.tca.2010.12.019:In3Ir_HT
tdb: tdb:InIr-11Ser.tdb:IN3IR_HT

TDB models of IN3IR_HT (1): PHASE and CONSTITUENT statements as written

InIr-11Ser.tdb: IN3IR_HT, type code %, sha256 08d4e25130797918…

55: PHASE IN3IR_HT % 2 3 1 !
56: CONST IN3IR_HT : IN : IN IR% : !

Example references (3 of 3; assessments first):

doi:10.1016/j.tca.2010.12.019 Colette Servant, Mohamed Idbenali, Thermodynamic assessment of the In–Ir system in the In rich part, Thermochimica Acta 517, 1-8 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(02)00287-6 Hans Flandorfer, Klaus W Richter, Erhard Hayer, Herbert Ipser, Gabriella Borzone, Jean-Pierre Bros, The binary system In–Ir: a new investigation of phase relationships, crystal structures, and enthalpies of mixing, Journal of Alloys and Compounds 345, 130-139 (2002).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00507-1 P. Anres, P. Fossati, K. Richter, M. Gambino, M. Gaune-Escard, J.-P. Bros, Thermodynamics of the [Ir–In] system, Journal of Alloys and Compounds 296, 119-127 (2000).
cited as the source of values for this phase

IN3IR_D011 (In–Ir)

Id: phase:in-ir:in3ir-d011; status assigned
Structure: Fe3C · D0_11 · oP16 · Pnma (62); type st:d0-11-fe3c-op16; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–634 K, x(Ir) 0.23822–0.25
Literature: 15 values (13 accepted) from 1 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:in-ir:in3ir-d011
paper: paper:10.1016/j.tca.2010.12.019:In3 Ir-LT, paper:10.1016/j.tca.2010.12.019:In3Ir-LT, paper:10.1016/j.tca.2010.12.019:In3Ir_LT
tdb: tdb:InIr-11Ser.tdb:IN3IR_D011

TDB models of IN3IR_D011 (1): PHASE and CONSTITUENT statements as written

InIr-11Ser.tdb: IN3IR_D011, type code %, sha256 08d4e25130797918…

50: PHASE IN3IR_D011 % 2 3 1 !
51: CONST IN3IR_D011 : IN : IN IR% : !

Example references (3 of 3; assessments first):

doi:10.1016/j.tca.2010.12.019 Colette Servant, Mohamed Idbenali, Thermodynamic assessment of the In–Ir system in the In rich part, Thermochimica Acta 517, 1-8 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(02)00287-6 Hans Flandorfer, Klaus W Richter, Erhard Hayer, Herbert Ipser, Gabriella Borzone, Jean-Pierre Bros, The binary system In–Ir: a new investigation of phase relationships, crystal structures, and enthalpies of mixing, Journal of Alloys and Compounds 345, 130-139 (2002).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00507-1 P. Anres, P. Fossati, K. Richter, M. Gambino, M. Gaune-Escard, J.-P. Bros, Thermodynamics of the [Ir–In] system, Journal of Alloys and Compounds 296, 119-127 (2000).
cited as the source of values for this phase

LIQUID (In–Ir)

Id: phase:in-ir:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 429.75–4000 K, x(Ir) 0–1
Literature: 26 values (23 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:in-ir:liquid
paper: paper:10.1016/j.tca.2010.12.019:Liq, paper:10.1016/j.tca.2010.12.019:liquid
tdb: tdb:InIr-11Ser.tdb:LIQUID

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

InIr-11Ser.tdb: LIQUID, type code %, sha256 08d4e25130797918…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : IN IR : !

Example references (3 of 3; assessments first):

doi:10.1016/j.tca.2010.12.019 Colette Servant, Mohamed Idbenali, Thermodynamic assessment of the In–Ir system in the In rich part, Thermochimica Acta 517, 1-8 (2011).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(02)00287-6 Hans Flandorfer, Klaus W Richter, Erhard Hayer, Herbert Ipser, Gabriella Borzone, Jean-Pierre Bros, The binary system In–Ir: a new investigation of phase relationships, crystal structures, and enthalpies of mixing, Journal of Alloys and Compounds 345, 130-139 (2002).
cited as the source of values for this phase
doi:10.1016/s0925-8388(99)00507-1 P. Anres, P. Fossati, K. Richter, M. Gambino, M. Gaune-Escard, J.-P. Bros, Thermodynamics of the [Ir–In] system, Journal of Alloys and Compounds 296, 119-127 (2000).
cited as the source of values for 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}
}