In–Si phases

3 phases (tier A 2, liquid 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 · In–Si system page · Markdown · field reference

Phases of the In–Si system (3)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
DIAMOND_A4 phase:in-si:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1687 K, x(Si) 1–1	0	1
TETRAGONAL_A6 phase:in-si: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(Si) 0–0	0	1
LIQUID phase:in-si:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 429.75–2500 K, x(Si) 0–1	14	1

DIAMOND_A4 (In–Si)

Id: phase:in-si:a4-diamond; status assigned
Structure: C (diamond) · A4 · cF8 · Fd-3m (227); type st:a4-c-diamond-cf8; tier A: standard phase name; confidence high
Stoichiometry: Si 1.0000
Stability: stable in 1 of 1 calculated diagram(s): 300–1687 K, x(Si) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:in-si:a4-diamond
tdb: tdb:InSi-85Ole-LB.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (1): PHASE and CONSTITUENT statements as written

InSi-85Ole-LB.tdb: DIAMOND_A4, type code %, sha256 f6a4df494b9b3444…

26: PHASE DIAMOND_A4 % 1 1 !
27: CONST DIAMOND_A4 : SI : !

Example references (1 of 1; assessments first):

doi:10.1007/BF02869223 R.W. Olesinski, N. Kanani, G.J. Abbaschian, Bull. Alloy Phase Diagrams, 6, 128-30(1985).
assessment that models this phase

TETRAGONAL_A6 (In–Si)

Id: phase:in-si: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(Si) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:in-si:a6-tetragonal
tdb: tdb:InSi-85Ole-LB.tdb:TETRAGONAL_A6

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

InSi-85Ole-LB.tdb: TETRAGONAL_A6, type code %, sha256 f6a4df494b9b3444…

31: PHASE TETRAGONAL_A6 % 1 1 !
32: CONST TETRAGONAL_A6 : IN : !

Example references (1 of 1; assessments first):

doi:10.1007/BF02869223 R.W. Olesinski, N. Kanani, G.J. Abbaschian, Bull. Alloy Phase Diagrams, 6, 128-30(1985).
assessment that models this phase

LIQUID (In–Si)

Id: phase:in-si:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 429.75–2500 K, x(Si) 0–1
Literature: 14 values (14 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:in-si:liquid
paper: paper:10.1007/bf02869223:L
tdb: tdb:InSi-85Ole-LB.tdb:LIQUID

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

InSi-85Ole-LB.tdb: LIQUID, type code %, sha256 f6a4df494b9b3444…

21: PHASE LIQUID:L % 1 1 !
22: CONST LIQUID:L : IN SI : !

Example references (1 of 1; assessments first):

doi:10.1007/BF02869223 R.W. Olesinski, N. Kanani, G.J. Abbaschian, Bull. Alloy Phase Diagrams, 6, 128-30(1985).
assessment that models this phase; reports 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}
}