Sb–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 · Sb–Si system page · Markdown · field reference

Phases of the Sb–Si system (3)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
DIAMOND_A4 phase:sb-si:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–1686.95 K, x(Si) 0.99896–1	0	2
RHOMBOHEDRAL_A7 phase:sb-si:a7-rhombohedral	alpha-As · A7 · hR2 · R-3m (166)	tier A: standard phase name	stable in 2 of 2 calculated diagram(s): 300–903.78 K, x(Si) 0–0	0	2
LIQUID phase:sb-si:liquid	liquid	liquid	stable in 2 of 2 calculated diagram(s): 902.71–2500 K, x(Si) 0–1	29	2

DIAMOND_A4 (Sb–Si)

Id: phase:sb-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
Stability: stable in 2 of 2 calculated diagram(s): 300–1686.95 K, x(Si) 0.99896–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:sb-si:a4-diamond
tdb: tdb:SbSi-11Wan.tdb:DIAMOND_A4, tdb:SbSi-85Ole-LB.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (2): PHASE and CONSTITUENT statements as written

SbSi-11Wan.tdb: DIAMOND_A4, type code %, sha256 92ed80bc14bc6afe…

25: PHASE DIAMOND_A4 % 1 1 !
26: CONST DIAMOND_A4 : SB SI% : !

SbSi-85Ole-LB.tdb: DIAMOND_A4, type code %, sha256 74004a1d293e3fd1…

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

Example references (2 of 2; assessments first):

doi:10.1007/BF02869508 R.W. Olesinski, G.J. Abbaschian, Bull. Alloy Phase Diag., 6, 445-48(1985).
assessment that models this phase
doi:10.1016/j.jallcom.2010.11.199 J. Wang, Y.J. Liu, L.B. Liu, H.Y. Zhou, Z.P. Jin, Thermodynamic modeling of the Au–Sb–Si ternary system, Journal of Alloys and Compounds 509, 3057-3064 (2011).
assessment that models this phase

RHOMBOHEDRAL_A7 (Sb–Si)

Id: phase:sb-si:a7-rhombohedral; status assigned
Structure: alpha-As · A7 · hR2 · R-3m (166); type st:a7-alpha-as-hr2; tier A: standard phase name; confidence high
Stoichiometry: Sb 1.0000
Stability: stable in 2 of 2 calculated diagram(s): 300–903.78 K, x(Si) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:sb-si:a7-rhombohedral
tdb: tdb:SbSi-11Wan.tdb:RHOMBOHEDRAL_A7, tdb:SbSi-85Ole-LB.tdb:RHOMBOHEDRAL_A7

TDB models of RHOMBOHEDRAL_A7 (2): PHASE and CONSTITUENT statements as written

SbSi-11Wan.tdb: RHOMBOHEDRAL_A7, type code %, sha256 92ed80bc14bc6afe…

30: PHASE RHOMBOHEDRAL_A7 % 1 1 !
31: CONST RHOMBOHEDRAL_A7 : SB : !

SbSi-85Ole-LB.tdb: RHOMBOHEDRAL_A7, type code %, sha256 74004a1d293e3fd1…

31: PHASE RHOMBOHEDRAL_A7 % 1 1 !
32: CONST RHOMBOHEDRAL_A7 : SB : !

Example references (2 of 2; assessments first):

doi:10.1007/BF02869508 R.W. Olesinski, G.J. Abbaschian, Bull. Alloy Phase Diag., 6, 445-48(1985).
assessment that models this phase
doi:10.1016/j.jallcom.2010.11.199 J. Wang, Y.J. Liu, L.B. Liu, H.Y. Zhou, Z.P. Jin, Thermodynamic modeling of the Au–Sb–Si ternary system, Journal of Alloys and Compounds 509, 3057-3064 (2011).
assessment that models this phase

LIQUID (Sb–Si)

Id: phase:sb-si:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 2 of 2 calculated diagram(s): 902.71–2500 K, x(Si) 0–1
Literature: 29 values (26 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:sb-si:liquid
paper: paper:10.1007/bf02869508:L, paper:10.1016/j.jallcom.2010.11.199:L
tdb: tdb:SbSi-11Wan.tdb:LIQUID, tdb:SbSi-85Ole-LB.tdb:LIQUID

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

SbSi-11Wan.tdb: LIQUID, type code %, sha256 92ed80bc14bc6afe…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : SB SI : !

SbSi-85Ole-LB.tdb: LIQUID, type code %, sha256 74004a1d293e3fd1…

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

Example references (5 of 5; assessments first):

doi:10.1007/BF02869508 R.W. Olesinski, G.J. Abbaschian, Bull. Alloy Phase Diag., 6, 445-48(1985).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.jallcom.2010.11.199 J. Wang, Y.J. Liu, L.B. Liu, H.Y. Zhou, Z.P. Jin, Thermodynamic modeling of the Au–Sb–Si ternary system, Journal of Alloys and Compounds 509, 3057-3064 (2011).
assessment that models this phase; reports values for this phase
doi:10.1002/j.1538-7305.1960.tb03927.x C. D. Thurmond, M. Kowalchik, Germanium and Silicon Liquidus Curves, Bell System Technical Journal 39, 169-204 (1960).
cited as the source of values for this phase
doi:10.1002/zaac.19070550102 Robert S. Williams, LI. Über die Legierungen des Antimons mit Mangan, Chrom, Silicium und Zinn; des Wismuts mit Chrom und Silicium und des Mangans mit Zinn und Blei, Z. Anorg. Chem. 55, 1-33 (1907).
cited as the source of values for this phase
doi:10.1021/j150509a019 Carl D. Thurmond, Equilibrium Thermochemistry of Solid and Liquid Alloys of Germanium and of Silicon. I. The Solubility of Ge and Si in Elements of Groups III, IV and V, J. Phys. Chem. 57, 827-830 (1953).
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}
}