Cu–Si system

146 accepted literature values from 4 paper(s) (experimental 71, model 65, unspecified 10); 9 calculated phase diagram(s). 9 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (17) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	71
model	65
unspecified	10

Accepted values by property group
Property group	Values
invariant reaction	130
phase transition	2
crystal structure	14

Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
CuSi-00Yan.tdb	X. Yan, Y.A. Chang, J. Alloys Compd., 308, 221-29(2000). doi:10.1016/S0925-8388(00)00983-X	`f728174b3aa223c6fbbf1728d80a8739ade3dc06d3b0d4cdc25361dcae07255b`	viewer · TDB · JSON
CuSi-08Shi.tdb	D. Shin, J.E. Saal, Z.-K. Liu, Calphad, 32, 520-26(2008). doi:10.1016/j.calphad.2008.05.003	`9e7184ce9a8ca0c4efdbe9acfbd5c65388664354ae3325a39a5a3a7a89beb4bb`	viewer · TDB · JSON
CuSi-13Gie.tdb	W. Gierlotka, M.A. Haque, J. Chem. Thermodyn., 57, 32-38(2013). 2020.12.06: Modified for use with GES6. doi:10.1016/j.jct.2012.07.025	`5471b8fafdfddb9a347136002fa91021d2a1d0a878468b800ae6c44a6bf63d52`	viewer · TDB · JSON
CuSi-16Hal.tdb	B. Hallstedt, J. Groebner, M. Hampl, R. Schmid-Fetzer, Calphad, 53, 25-38(2016). doi:10.1016/j.calphad.2016.03.002	`858bf3eb9583bf24e2f6b1f5d86ac393828f016135da562cf4863fc887659b98`	viewer · TDB · JSON
CuSi-19Sol.tdb	L. Soldi, A. Laplace, M. Roskosz, S. Gosse, J. Alloys Compd., 803, 61-70(2019). doi:10.1016/j.jallcom.2019.06.236	`f7b1e3d5d7f2e10c5cf142ecc77838cb2b1a7383944c4680a5facf58468f630a`	viewer · TDB · JSON
CuSi-24Kro.tdb	A. Kroupa, O. Zobac, A. Zemanova, K.W. Richter, J. Phase Equilib. Diffus., 45, 1206-43(2024). doi:10.1007/s11669-024-01160-5	`649b0d49d2e75ff2f64213df29c00beeec3e643bee4ad3a39c8b2d6d1816e6f4`	viewer · TDB · JSON
CuSi-98Jac.tdb	M.H.G. Jacobs, T. Buehler, COST 507, Final report round 2, 1998.	`8f97b6dac06196e8d32c8d308dd95cb864abcb11994e41050c10565548935ab9`	viewer · TDB · JSON
CuSi-99Fri-LB.tdb	S.G. Fries, T. Jantzen, I. Hurtado, H.L. Lukas, unpublished work, 1999.	`1dbb097e2303a64ddc49f8b6b4ae04e5522a73ce6ce36198c6a8c51956b49a7e`	viewer · TDB · JSON
CuSi-99Fri-alt.tdb	S.G. Fries, T. Jantzen, I. Hurtado, H.L. Lukas, unpublished work, 1999.	`290a3b7d57ad7f6c05ce0cf34c3209e9e32d2d4178945aaf608b3402547cc078`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
CuSi-00Yan.tdb	1126.33	FCC_A1 (x(Si) 0.11138) + BCC_A2 (x(Si) 0.14595) + LIQUID (x(Si) 0.15701)
CuSi-00Yan.tdb	1115.36	FCC_A1 (x(Si) 0.11228) + HCP_A3 (x(Si) 0.13047) + BCC_A2 (x(Si) 0.14674)
CuSi-00Yan.tdb	1097.06	BCC_A2 (x(Si) 0.16708) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18687)
CuSi-00Yan.tdb	1097.05	BCC_A2 (x(Si) 0.16699) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18675)
CuSi-00Yan.tdb	1093.44	CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.19188) + CU19SI6 (x(Si) 0.24)
CuSi-00Yan.tdb	1093.44	CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.19206) + CU19SI6 (x(Si) 0.24)
CuSi-00Yan.tdb	1093.44	CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.19218) + CU19SI6 (x(Si) 0.24)
CuSi-00Yan.tdb	1075.6	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.3073) + DIAMOND_A4 (x(Si) 1)
CuSi-00Yan.tdb	1075.6	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.30734) + DIAMOND_A4 (x(Si) 1)
CuSi-00Yan.tdb	1073.8	CU33SI7 (x(Si) 0.175) + CU15SI4 (x(Si) 0.2105) + CU19SI6 (x(Si) 0.24)
CuSi-00Yan.tdb	1060.09	HCP_A3 (x(Si) 0.14233) + BCC_A2 (x(Si) 0.15677) + CU33SI7 (x(Si) 0.175)
CuSi-00Yan.tdb	1060.09	HCP_A3 (x(Si) 0.14226) + BCC_A2 (x(Si) 0.15672) + CU33SI7 (x(Si) 0.175)
CuSi-00Yan.tdb	1001.18	HCP_A3 (x(Si) 0.13873) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175)
CuSi-00Yan.tdb	1001.18	HCP_A3 (x(Si) 0.13878) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175)
CuSi-00Yan.tdb	1001.18	HCP_A3 (x(Si) 0.13871) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175)
CuSi-00Yan.tdb	984.13	CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) + CU15SI4 (x(Si) 0.2105)
CuSi-00Yan.tdb	824.24	FCC_A1 (x(Si) 0.09688) + HCP_A3 (x(Si) 0.11511) + CU56SI11_A13 (x(Si) 0.1642)
CuSi-08Shi.tdb	1124.95	FCC_A1 (x(Si) 0.11539) + BCC_A2 (x(Si) 0.14237) + LIQUID (x(Si) 0.15692)
CuSi-08Shi.tdb	1111.53	FCC_A1 (x(Si) 0.116) + HCP_A3 (x(Si) 0.1321) + BCC_A2 (x(Si) 0.14299)
CuSi-08Shi.tdb	1096.87	BCC_A2 (x(Si) 0.16241) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18575)
CuSi-08Shi.tdb	1095.19	CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18925) + CU19SI6 (x(Si) 0.24)
CuSi-08Shi.tdb	1095.19	CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18942) + CU19SI6 (x(Si) 0.24)
CuSi-08Shi.tdb	1075.83	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31843) + DIAMOND_A4 (x(Si) 1)
CuSi-08Shi.tdb	1075.83	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31847) + DIAMOND_A4 (x(Si) 1)
CuSi-08Shi.tdb	1070.18	CU33SI7 (x(Si) 0.175) + CU15SI4 (x(Si) 0.2105) + CU19SI6 (x(Si) 0.24)
CuSi-08Shi.tdb	1059.99	HCP_A3 (x(Si) 0.14356) + BCC_A2 (x(Si) 0.15307) + CU33SI7 (x(Si) 0.175)
CuSi-08Shi.tdb	1059.99	HCP_A3 (x(Si) 0.14354) + BCC_A2 (x(Si) 0.15305) + CU33SI7 (x(Si) 0.175)
CuSi-08Shi.tdb	997.57	HCP_A3 (x(Si) 0.13771) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175)
CuSi-08Shi.tdb	997.57	HCP_A3 (x(Si) 0.13771) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175)
CuSi-08Shi.tdb	997.57	HCP_A3 (x(Si) 0.1377) + CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175)
CuSi-08Shi.tdb	990.82	CU56SI11_A13 (x(Si) 0.1642) + CU33SI7 (x(Si) 0.175) + CU15SI4 (x(Si) 0.2105)
CuSi-08Shi.tdb	822.83	FCC_A1 (x(Si) 0.09596) + HCP_A3 (x(Si) 0.11061) + CU56SI11_A13 (x(Si) 0.1642)
CuSi-13Gie.tdb	1123.94	FCC_A1 (x(Si) 0.11368) + BCC_A2 (x(Si) 0.1384) + LIQUID (x(Si) 0.16373)
CuSi-13Gie.tdb	1115.07	FCC_A1 (x(Si) 0.11472) + HCP_A3 (x(Si) 0.12503) + BCC_A2 (x(Si) 0.13929)
CuSi-13Gie.tdb	1095.15	BCC_A2 (x(Si) 0.17277) + CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.1863)
CuSi-13Gie.tdb	1093.22	CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18936) + CU3SI_HT (x(Si) 0.24)
CuSi-13Gie.tdb	1073.86	CU3SI_HT (x(Si) 0.24) + LIQUID (x(Si) 0.3256) + DIAMOND_A4 (x(Si) 1)
CuSi-13Gie.tdb	1070.55	CU33SI7_HT (x(Si) 0.175) + CU15SI4 (x(Si) 0.21053) + CU3SI_HT (x(Si) 0.24)
CuSi-13Gie.tdb	1062.62	HCP_A3 (x(Si) 0.14022) + BCC_A2 (x(Si) 0.15281) + CU33SI7_HT (x(Si) 0.175)
CuSi-13Gie.tdb	1062.62	HCP_A3 (x(Si) 0.14025) + BCC_A2 (x(Si) 0.15284) + CU33SI7_HT (x(Si) 0.175)
CuSi-13Gie.tdb	1005.28	CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175) + CU15SI4 (x(Si) 0.21053)
CuSi-13Gie.tdb	1005.28	HCP_A3 (x(Si) 0.13526) + CU33SI7_A13 (x(Si) 0.175) + CU33SI7_HT (x(Si) 0.175)
CuSi-13Gie.tdb	1005.28	HCP_A3 (x(Si) 0.1352) + CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175)
CuSi-13Gie.tdb	892.37	CU15SI4 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24)
CuSi-13Gie.tdb	842	CU15SI4 (x(Si) 0.21053) + CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235)
CuSi-13Gie.tdb	828.03	CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1)
CuSi-13Gie.tdb	825.38	FCC_A1 (x(Si) 0.09702) + HCP_A3 (x(Si) 0.10789) + CU33SI7_A13 (x(Si) 0.175)
CuSi-13Gie.tdb	740	CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235) + DIAMOND_A4 (x(Si) 1)
CuSi-16Hal.tdb	1122.79	FCC_A1 (x(Si) 0.11568) + BCC_A2 (x(Si) 0.14256) + LIQUID (x(Si) 0.16113)
CuSi-16Hal.tdb	1112.29	FCC_A1 (x(Si) 0.11612) + HCP_A3 (x(Si) 0.12803) + BCC_A2 (x(Si) 0.14302)
CuSi-16Hal.tdb	1093.8	BCC_A2 (x(Si) 0.15979) + CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18546)
CuSi-16Hal.tdb	1091.86	CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18958) + CU3SI_HT (x(Si) 0.24)
CuSi-16Hal.tdb	1079.56	CU3SI_HT (x(Si) 0.24) + LIQUID (x(Si) 0.31164) + DIAMOND_A4 (x(Si) 1)
CuSi-16Hal.tdb	1072.35	CU33SI7_HT (x(Si) 0.175) + CU15SI4_D86 (x(Si) 0.21053) + CU3SI_HT (x(Si) 0.24)
CuSi-16Hal.tdb	1055.17	HCP_A3 (x(Si) 0.13593) + BCC_A2 (x(Si) 0.15041) + CU33SI7_HT (x(Si) 0.175)
CuSi-16Hal.tdb	1055.17	HCP_A3 (x(Si) 0.13589) + BCC_A2 (x(Si) 0.15038) + CU33SI7_HT (x(Si) 0.175)
CuSi-16Hal.tdb	1007.32	CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175) + CU15SI4_D86 (x(Si) 0.21053)
CuSi-16Hal.tdb	1007.32	HCP_A3 (x(Si) 0.13179) + CU33SI7_A13 (x(Si) 0.175) + CU33SI7_HT (x(Si) 0.175)
CuSi-16Hal.tdb	1007.32	HCP_A3 (x(Si) 0.13176) + CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175)
CuSi-16Hal.tdb	888.2	CU15SI4_D86 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24)
CuSi-16Hal.tdb	831.08	CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1)
CuSi-16Hal.tdb	825.43	FCC_A1 (x(Si) 0.09464) + HCP_A3 (x(Si) 0.10757) + CU33SI7_A13 (x(Si) 0.175)
CuSi-16Hal.tdb	822.22	CU15SI4_D86 (x(Si) 0.21053) + CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235)
CuSi-16Hal.tdb	749.5	CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235) + DIAMOND_A4 (x(Si) 1)
CuSi-19Sol.tdb	1118	FCC_A1 (x(Si) 0.11197) + BCC_A2 (x(Si) 0.13712) + LIQUID (x(Si) 0.16579)
CuSi-19Sol.tdb	1107.43	FCC_A1 (x(Si) 0.11305) + HCP_A3 (x(Si) 0.1209) + BCC_A2 (x(Si) 0.13798)
CuSi-19Sol.tdb	1094.48	BCC_A2 (x(Si) 0.14779) + CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18382)
CuSi-19Sol.tdb	1094.48	BCC_A2 (x(Si) 0.14777) + CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18379)
CuSi-19Sol.tdb	1092.89	CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.1881) + CU3SI_HT (x(Si) 0.24)
CuSi-19Sol.tdb	1092.89	CU33SI7_HT (x(Si) 0.175) + LIQUID (x(Si) 0.18826) + CU3SI_HT (x(Si) 0.24)
CuSi-19Sol.tdb	1074.65	CU3SI_HT (x(Si) 0.24) + LIQUID (x(Si) 0.31518) + DIAMOND_A4 (x(Si) 1)
CuSi-19Sol.tdb	1074.57	CU33SI7_HT (x(Si) 0.175) + CU15SI4_D86 (x(Si) 0.21053) + CU3SI_HT (x(Si) 0.24)
CuSi-19Sol.tdb	1056.65	HCP_A3 (x(Si) 0.12845) + BCC_A2 (x(Si) 0.14461) + CU33SI7_HT (x(Si) 0.175)
CuSi-19Sol.tdb	1056.65	HCP_A3 (x(Si) 0.12843) + BCC_A2 (x(Si) 0.14459) + CU33SI7_HT (x(Si) 0.175)
CuSi-19Sol.tdb	1005.92	CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175) + CU15SI4_D86 (x(Si) 0.21053)
CuSi-19Sol.tdb	1005.92	HCP_A3 (x(Si) 0.12805) + CU33SI7_A13 (x(Si) 0.175) + CU33SI7_HT (x(Si) 0.175)
CuSi-19Sol.tdb	1005.92	HCP_A3 (x(Si) 0.12804) + CU33SI7_HT (x(Si) 0.175) + CU33SI7_A13 (x(Si) 0.175)
CuSi-19Sol.tdb	893.46	CU15SI4_D86 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24)
CuSi-19Sol.tdb	843.74	FCC_A1 (x(Si) 0.10728) + HCP_A3 (x(Si) 0.11588) + CU33SI7_A13 (x(Si) 0.175)
CuSi-19Sol.tdb	827.96	CU15SI4_D86 (x(Si) 0.21053) + CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235)
CuSi-19Sol.tdb	827.94	CU3SI_MT (x(Si) 0.235) + CU3SI_HT (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1)
CuSi-19Sol.tdb	754.11	CU3SI_LT (x(Si) 0.23) + CU3SI_MT (x(Si) 0.235) + DIAMOND_A4 (x(Si) 1)
CuSi-24Kro.tdb	1121.72	FCC_A1 (x(Si) 0.11512) + BCC_A2 (x(Si) 0.14206) + LIQUID (x(Si) 0.16026)
CuSi-24Kro.tdb	1112.6	FCC_A1 (x(Si) 0.11552) + HCP_A3 (x(Si) 0.12666) + BCC_A2 (x(Si) 0.14247)
CuSi-24Kro.tdb	1092	BCC_A2 (x(Si) 0.1598) + CU33SI7_HT (x(Si) 0.17782) + LIQUID (x(Si) 0.18526)
CuSi-24Kro.tdb	1091.23	CU33SI7_HT (x(Si) 0.17904) + LIQUID (x(Si) 0.18784) + CU3SI_HT (x(Si) 0.23732)
CuSi-24Kro.tdb	1085.87	CU3SI_HT (x(Si) 0.24976) + LIQUID (x(Si) 0.31349) + DIAMOND_A4 (x(Si) 1)
CuSi-24Kro.tdb	1072.02	CU33SI7_HT (x(Si) 0.1786) + CU15SI4_D86 (x(Si) 0.21053) + CU3SI_HT (x(Si) 0.23719)
CuSi-24Kro.tdb	1053.89	HCP_A3 (x(Si) 0.13468) + BCC_A2 (x(Si) 0.15002) + CU33SI7_HT (x(Si) 0.17248)
CuSi-24Kro.tdb	1006.91	CU33SI7_HT (x(Si) 0.17358) + CU33SI7_A13 (x(Si) 0.17545) + CU15SI4_D86 (x(Si) 0.21053)
CuSi-24Kro.tdb	1005.04	HCP_A3 (x(Si) 0.13029) + CU33SI7_HT (x(Si) 0.17148) + CU33SI7_A13 (x(Si) 0.17473)
CuSi-24Kro.tdb	887	CU15SI4_D86 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.23528) + CU3SI_HT (x(Si) 0.23825)
CuSi-24Kro.tdb	887	CU15SI4_D86 (x(Si) 0.21053) + CU3SI_MT (x(Si) 0.23525) + CU3SI_HT (x(Si) 0.23822)
CuSi-24Kro.tdb	831.57	CU3SI_MT (x(Si) 0.24507) + CU3SI_HT (x(Si) 0.24858) + DIAMOND_A4 (x(Si) 1)
CuSi-24Kro.tdb	831.57	CU3SI_MT (x(Si) 0.2451) + CU3SI_HT (x(Si) 0.24862) + DIAMOND_A4 (x(Si) 1)
CuSi-24Kro.tdb	829.03	FCC_A1 (x(Si) 0.09218) + HCP_A3 (x(Si) 0.10482) + CU33SI7_A13 (x(Si) 0.17211)
CuSi-24Kro.tdb	822.04	CU15SI4_D86 (x(Si) 0.21053) + CU3SI_LT (x(Si) 0.23521) + CU3SI_MT (x(Si) 0.23524)
CuSi-24Kro.tdb	742.37	CU3SI_LT (x(Si) 0.24359) + CU3SI_MT (x(Si) 0.24492) + DIAMOND_A4 (x(Si) 1)
CuSi-24Kro.tdb	742.37	CU3SI_LT (x(Si) 0.2436) + CU3SI_MT (x(Si) 0.24493) + DIAMOND_A4 (x(Si) 1)
CuSi-98Jac.tdb	1125.42	FCC_A1 (x(Si) 0.11214) + BCC_A2 (x(Si) 0.14614) + LIQUID (x(Si) 0.15372)
CuSi-98Jac.tdb	1115.92	FCC_A1 (x(Si) 0.11348) + HCP_A3 (x(Si) 0.1184) + BCC_A2 (x(Si) 0.14708)
CuSi-98Jac.tdb	1092.73	BCC_A2 (x(Si) 0.16908) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18591)
CuSi-98Jac.tdb	1092.73	BCC_A2 (x(Si) 0.16904) + CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.18586)
CuSi-98Jac.tdb	1089.21	CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.191) + CU19SI6 (x(Si) 0.24)
CuSi-98Jac.tdb	1089.21	CU33SI7 (x(Si) 0.175) + LIQUID (x(Si) 0.19113) + CU19SI6 (x(Si) 0.24)
CuSi-98Jac.tdb	1077.95	CU33SI7 (x(Si) 0.175) + CU4SI (x(Si) 0.2) + CU19SI6 (x(Si) 0.24)
CuSi-98Jac.tdb	1073.66	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.30637) + DIAMOND_A4 (x(Si) 1)
CuSi-98Jac.tdb	1073.66	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.3064) + DIAMOND_A4 (x(Si) 1)
CuSi-98Jac.tdb	1058.63	HCP_A3 (x(Si) 0.12547) + BCC_A2 (x(Si) 0.1542) + CU33SI7 (x(Si) 0.175)
CuSi-98Jac.tdb	1058.63	HCP_A3 (x(Si) 0.12544) + BCC_A2 (x(Si) 0.15417) + CU33SI7 (x(Si) 0.175)
CuSi-98Jac.tdb	1008.37	HCP_A3 (x(Si) 0.12162) + CU56SI11_A13 (x(Si) 0.16418) + CU33SI7 (x(Si) 0.175)
CuSi-98Jac.tdb	1008.37	HCP_A3 (x(Si) 0.12164) + CU56SI11_A13 (x(Si) 0.16418) + CU33SI7 (x(Si) 0.175)
CuSi-98Jac.tdb	955.61	CU56SI11_A13 (x(Si) 0.16418) + CU33SI7 (x(Si) 0.175) + CU4SI (x(Si) 0.2)
CuSi-98Jac.tdb	825.59	FCC_A1 (x(Si) 0.09304) + HCP_A3 (x(Si) 0.1057) + CU56SI11_A13 (x(Si) 0.16418)
CuSi-98Jac.tdb	825.59	FCC_A1 (x(Si) 0.09305) + HCP_A3 (x(Si) 0.10571) + CU56SI11_A13 (x(Si) 0.16418)
CuSi-98Jac.tdb	696.51	CU56SI11_A13 (x(Si) 0.16418) + CU4SI (x(Si) 0.2) + CU19SI6 (x(Si) 0.24)
CuSi-98Jac.tdb	667.8	FCC_A1 (x(Si) 0.07209) + CU56SI11_A13 (x(Si) 0.16418) + CU19SI6 (x(Si) 0.24)
CuSi-98Jac.tdb	667.8	FCC_A1 (x(Si) 0.07202) + CU56SI11_A13 (x(Si) 0.16418) + CU19SI6 (x(Si) 0.24)
CuSi-98Jac.tdb	330.86	FCC_A1 (x(Si) 0.02172) + CU19SI6 (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1)
CuSi-98Jac.tdb	330.86	FCC_A1 (x(Si) 0.02168) + CU19SI6 (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1)
CuSi-98Jac.tdb	330.86	FCC_A1 (x(Si) 0.02164) + CU19SI6 (x(Si) 0.24) + DIAMOND_A4 (x(Si) 1)
CuSi-99Fri-LB.tdb	1122.49	FCC_A1 (x(Si) 0.11189) + BCC_A2 (x(Si) 0.14271) + LIQUID (x(Si) 0.15877)
CuSi-99Fri-LB.tdb	1115.69	FCC_A1 (x(Si) 0.11226) + HCP_A3 (x(Si) 0.13032) + BCC_A2 (x(Si) 0.14356)
CuSi-99Fri-LB.tdb	1097.01	BCC_A2 (x(Si) 0.16428) + CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18756)
CuSi-99Fri-LB.tdb	1096.41	CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.19016) + CU19SI6 (x(Si) 0.24)
CuSi-99Fri-LB.tdb	1096.41	CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.19033) + CU19SI6 (x(Si) 0.24)
CuSi-99Fri-LB.tdb	1074.8	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31696) + DIAMOND_A4 (x(Si) 1)
CuSi-99Fri-LB.tdb	1074.8	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31699) + DIAMOND_A4 (x(Si) 1)
CuSi-99Fri-LB.tdb	1069.19	CU9SI2 (x(Si) 0.18182) + CU15SI4 (x(Si) 0.21053) + CU19SI6 (x(Si) 0.24)
CuSi-99Fri-LB.tdb	1059.34	HCP_A3 (x(Si) 0.14132) + BCC_A2 (x(Si) 0.15741) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-LB.tdb	1059.34	HCP_A3 (x(Si) 0.14128) + BCC_A2 (x(Si) 0.15736) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-LB.tdb	999.16	HCP_A3 (x(Si) 0.13522) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-LB.tdb	999.16	HCP_A3 (x(Si) 0.13522) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-LB.tdb	999.16	HCP_A3 (x(Si) 0.1352) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-LB.tdb	981.56	CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) + CU15SI4 (x(Si) 0.21053)
CuSi-99Fri-LB.tdb	824.84	FCC_A1 (x(Si) 0.09417) + HCP_A3 (x(Si) 0.11359) + CU33SI7_A13 (x(Si) 0.175)
CuSi-99Fri-alt.tdb	1124.91	FCC_A1 (x(Si) 0.11105) + BCC_A2 (x(Si) 0.13964) + LIQUID (x(Si) 0.15759)
CuSi-99Fri-alt.tdb	1115	FCC_A1 (x(Si) 0.11148) + HCP_A3 (x(Si) 0.12269) + BCC_A2 (x(Si) 0.14011)
CuSi-99Fri-alt.tdb	1095.38	BCC_A2 (x(Si) 0.15781) + CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18561)
CuSi-99Fri-alt.tdb	1094.76	CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18912) + CU19SI6 (x(Si) 0.24)
CuSi-99Fri-alt.tdb	1094.76	CU9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18926) + CU19SI6 (x(Si) 0.24)
CuSi-99Fri-alt.tdb	1074.8	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31696) + DIAMOND_A4 (x(Si) 1)
CuSi-99Fri-alt.tdb	1074.8	CU19SI6 (x(Si) 0.24) + LIQUID (x(Si) 0.31699) + DIAMOND_A4 (x(Si) 1)
CuSi-99Fri-alt.tdb	1073.54	CU9SI2 (x(Si) 0.18182) + CU15SI4 (x(Si) 0.21053) + CU19SI6 (x(Si) 0.24)
CuSi-99Fri-alt.tdb	1058.1	HCP_A3 (x(Si) 0.13533) + BCC_A2 (x(Si) 0.14939) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-alt.tdb	1058.1	HCP_A3 (x(Si) 0.13526) + BCC_A2 (x(Si) 0.14933) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-alt.tdb	1002.26	HCP_A3 (x(Si) 0.13303) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-alt.tdb	1002.26	HCP_A3 (x(Si) 0.13305) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-alt.tdb	1002.26	HCP_A3 (x(Si) 0.13302) + CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182)
CuSi-99Fri-alt.tdb	982.69	CU33SI7_A13 (x(Si) 0.175) + CU9SI2 (x(Si) 0.18182) + CU15SI4 (x(Si) 0.21053)
CuSi-99Fri-alt.tdb	825.01	FCC_A1 (x(Si) 0.09419) + HCP_A3 (x(Si) 0.118) + CU33SI7_A13 (x(Si) 0.175)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull CuSi-00Yan · CALPHAD hull CuSi-08Shi · CALPHAD hull CuSi-13Gie · CALPHAD hull CuSi-16Hal · CALPHAD hull CuSi-19Sol · CALPHAD hull CuSi-98Jac · CALPHAD hull CuSi-99Fri-LB · CALPHAD hull CuSi-99Fri-alt

Invariant reactions (literature)

Invariant reactions reported in the literature for the Cu–Si system (130)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1129.45	congruent melting: L -> η_Cu3Si	L: Si 0.24; η_Cu3Si: Si 0.24	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 1 report
1127	L + FCC_A1(Cu) = β	L: Si 0.16; FCC_A1(Cu): Si 0.11; β: Si 0.146	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 57 report
1126.15	peritectic: L+(Cu) -> β	L: Si 0.157; (Cu): Si 0.111; β: Si 0.146	model	[3] Yan 2000	Table 1, p. 3, row 28 report
1126	L + FCC_A1(Cu) = β	L: Si 0.157; FCC_A1(Cu): Si 0.111; β: Si 0.146	experimental	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 54 report
1125.85	congruent melting: L -> η_Cu3Si	L: Si 0.241; η_Cu3Si: Si 0.241	model	[1] Kroupa 2024	Table 2, p. 6, row 2 report
1125.15	peritectic: L+(Cu) -> β	L: Si 0.16; (Cu): Si 0.1115; β: Si 0.142	experimental	[3] Yan 2000 cites Smith 1940	Table 1, p. 3, row 29 report
1125.15	peritectic: L+(Cu) -> β	L: Si 0.154; (Cu): Si 0.112; β: Si 0.146	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 30 report
1125	L + FCC_A1(Cu) = β	L: Si 0.154; FCC_A1(Cu): Si 0.112; β: Si 0.146	unspecified	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 56 report
1125	L + FCC_A1(Cu) = β	L: Si 0.16; FCC_A1(Cu): Si 0.112; β: Si 0.142	experimental	[2] Gierlotka 2013 cites Smith 1940	Table 4, p. 5, row 55 report
1124	L + FCC_A1(Cu) = β	L: Si 0.16; FCC_A1(Cu): Si 0.11; β: Si 0.138	model	[2] Gierlotka 2013	Table 4, p. 5, row 53 report
1122.75	peritectic: (Cu) + L -> β(CuSi)	(Cu): Si 0.116; L: Si 0.161; β(CuSi): Si 0.143	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 4 report
1122.15	peritectic: (Cu) + L -> β(CuSi)	L: Si 0.16; β(CuSi): Si 0.142	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 3 report
1121.75	peritectic: (Cu) + L -> β(CuSi)	(Cu): Si 0.115; L: Si 0.16; β(CuSi): Si 0.142	model	[1] Kroupa 2024	Table 2, p. 6, row 5 report
1119.15	peritectoid: β+(Cu) -> κ	β: Si 0.147; (Cu): Si 0.113; κ: Si 0.118	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 27 report
1119	β + FCC_A1(Cu) = κ	β: Si 0.147; FCC_A1(Cu): Si 0.113; κ: Si 0.118	unspecified	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 51 report
1115.15	peritectoid: β+(Cu) -> κ	β: Si 0.147; (Cu): Si 0.112; κ: Si 0.13	model	[3] Yan 2000	Table 1, p. 3, row 25 report
1115.15	peritectoid: β+(Cu) -> κ	β: Si 0.144; (Cu): Si 0.1125; κ: Si 0.1245	experimental	[3] Yan 2000 cites Smith 1940	Table 1, p. 3, row 26 report
1115	β + FCC_A1(Cu) = κ	β: Si 0.147; FCC_A1(Cu): Si 0.112; κ: Si 0.13	experimental	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 49 report
1115	β + FCC_A1(Cu) = κ	β: Si 0.14; FCC_A1(Cu): Si 0.114; κ: Si 0.125	model	[2] Gierlotka 2013	Table 4, p. 5, row 48 report
1115	β + FCC_A1(Cu) = κ	β: Si 0.144; FCC_A1(Cu): Si 0.113; κ: Si 0.125	experimental	[2] Gierlotka 2013 cites Smith 1940	Table 4, p. 5, row 50 report
1114	β + FCC_A1(Cu) = κ	β: Si 0.145; FCC_A1(Cu): Si 0.109; κ: Si 0.125	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 52 report
1112.55	peritectic: (Cu) + β(CuSi) -> κ(CuSi)	(Cu): Si 0.116; β(CuSi): Si 0.142; κ(CuSi): Si 0.128	model	[1] Kroupa 2024	Table 2, p. 6, row 8 report
1112.25	peritectic: (Cu) + β(CuSi) -> κ(CuSi)	(Cu): Si 0.116; β(CuSi): Si 0.143; κ(CuSi): Si 0.128	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 7 report
1112.15	peritectic: (Cu) + β(CuSi) -> κ(CuSi)	β(CuSi): Si 0.145; κ(CuSi): Si 0.125	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 6 report
1098	L + β = δ	L: Si 0.19; β: Si 0.165; δ: Si 0.176	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 47 report
1097.15	peritectic: L+β -> δ	L: Si 0.181; β: Si 0.172; δ: Si 0.176	experimental	[3] Yan 2000 cites Smith 1940	Table 1, p. 3, row 23 report
1097.15	peritectic: L+β -> δ	L: Si 0.187; β: Si 0.167; δ: Si 0.175	model	[3] Yan 2000	Table 1, p. 3, row 22 report
1097	L + β = δ	L: Si 0.187; β: Si 0.167; δ: Si 0.175	experimental	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 44 report
1097	L + β = δ	L: Si 0.181; β: Si 0.172; δ: Si 0.176	experimental	[2] Gierlotka 2013 cites Smith 1940	Table 4, p. 5, row 45 report
1095	L + β = δ	L: Si 0.188; β: Si 0.17; δ: Si 0.175	model	[2] Gierlotka 2013	Table 4, p. 5, row 43 report
1095	L = η + δ	L: Si 0.199; η: Si 0.23; δ: Si 0.176	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 42 report
1094.15	peritectic: β(CuSi) + L -> δ	β(CuSi): Si 0.165; L: Si 0.192; δ: Si 0.175	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 9 report
1093.75	peritectic: β(CuSi) + L -> δ	β(CuSi): Si 0.16; L: Si 0.185; δ: Si 0.175	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 10 report
1093.15	peritectic: L+β -> δ	L: Si 0.186; β: Si 0.169; δ: Si 0.175	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 24 report
1093.15	eutectic: L -> η+δ	L: Si 0.192; η: Si 0.24; δ: Si 0.175	model	[3] Yan 2000	Table 1, p. 3, row 19 report
1093.15	eutectic: L -> η+δ	L: Si 0.199; η: Si 0.234; δ: Si 0.196	experimental	[3] Yan 2000 cites Smith 1929	Table 1, p. 3, row 20 report
1093	L = η + δ	L: Si 0.199; η: Si 0.234; δ: Si 0.196	experimental	[2] Gierlotka 2013 cites Smith 1940	Table 4, p. 5, row 40 report
1093	L = η + δ	L: Si 0.202; η: Si 0.25; δ: Si 0.175	model	[2] Gierlotka 2013	Table 4, p. 5, row 38 report
1093	L + β = δ	L: Si 0.186; β: Si 0.169; δ: Si 0.175	unspecified	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 46 report
1093	L = η + δ	L: Si 0.192; η: Si 0.24; δ: Si 0.175	experimental	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 39 report
1091.95	peritectic: β(CuSi) + L -> δ	β(CuSi): Si 0.16; L: Si 0.186; δ: Si 0.178	model	[1] Kroupa 2024	Table 2, p. 6, row 11 report
1091.85	eutectic: L + δ -> η	L: Si 0.19; δ: Si 0.175; η: Si 0.24	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 13 report
1091.25	eutectic: L + δ -> η	L: Si 0.188; δ: Si 0.18; η: Si 0.238	model	[1] Kroupa 2024	Table 2, p. 6, row 14 report
1091.15	eutectic: L + δ -> η	L: Si 0.198; δ: Si 0.177; η: Si 0.232	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 12 report
1089.15	eutectic: L -> η+δ	L: Si 0.191; η: Si 0.24; δ: Si 0.175	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 21 report
1089	L = η + δ	L: Si 0.191; η: Si 0.24; δ: Si 0.175	unspecified	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 41 report
1085.85	eutectic: L + η -> (Si)	L: Si 0.314; η: Si 0.25; (Si): Si 1	model	[1] Kroupa 2024	Table 2, p. 6, row 17 report
1080.15	eutectic: L + η -> (Si)	η: Cu 0.75, Si 0.25	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 15 report
1079.55	eutectic: L + η -> (Si)	L: Si 0.312; η: Si 0.24; (Si): Si 1	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 16 report
1079	L = Diamond_A4(Si) + η	L: Si 0.3; Diamond_A4(Si): Si 1; η: Si 0.258	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 37 report
1078.15	peritectoid: η+δ -> ε	η: Si 0.24; δ: Si 0.175; ε: Si 0.2	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 15 report
1078	η + δ = ε	η: Si 0.24; δ: Si 0.175; ε: Si 0.2	unspecified	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 31 report
1075.15	eutectic: L -> (Si)+η	L: Si 0.301; (Si): Si 1; η: Si 0.249	experimental	[3] Yan 2000 cites Smith 1929	Table 1, p. 3, row 17 report
1075.15	eutectic: L -> (Si)+η	L: Si 0.307; (Si): Si 1; η: Si 0.24	model	[3] Yan 2000	Table 1, p. 3, row 16 report
1075	L = Diamond_A4(Si) + η	L: Si 0.307; Diamond_A4(Si): Si 1; η: Si 0.24	experimental	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 34 report
1075	L = Diamond_A4(Si) + η	L: Si 0.301; Diamond_A4(Si): Si 1; η: Si 0.249	experimental	[2] Gierlotka 2013 cites Smith 1940	Table 4, p. 5, row 35 report
1074.15	eutectic: L -> (Si)+η	L: Si 0.306; (Si): Si 1; η: Si 0.24	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 18 report
1074	L = Diamond_A4(Si) + η	L: Si 0.32; Diamond_A4(Si): Si 1; η: Si 0.25	model	[2] Gierlotka 2013	Table 4, p. 5, row 33 report
1074	L = Diamond_A4(Si) + η	L: Si 0.306; Diamond_A4(Si): Si 1; η: Si 0.24	unspecified	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 36 report
1073.15	peritectoid: η+δ -> ε	η: Si 0.235; δ: Si 0.194; ε: Si 0.212	experimental	[3] Yan 2000 cites Iokibe 1931	Table 1, p. 3, row 14 report
1073.15	peritectoid: η+δ -> ε	η: Si 0.24; δ: Si 0.175; ε: Si 0.211	model	[3] Yan 2000	Table 1, p. 3, row 13 report
1073.15	peritectoid: δ + η -> ε	δ: Si 0.185; η: Si 0.235; ε: Si 0.211	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 18 report
1073	η + δ = ε	η: Si 0.235; δ: Si 0.194; ε: Si 0.212	experimental	[2] Gierlotka 2013 cites Iokibe 1931	Table 4, p. 5, row 30 report
1073	η + δ = ε	η: Si 0.24; δ: Si 0.175; ε: Si 0.211	experimental	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 29 report
1073	η + δ = ε	η: Si 0.233; δ: Si 0.184; ε: Si 0.21	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 32 report
1072.35	peritectoid: δ + η -> ε	δ: Si 0.175; η: Si 0.24; ε: Si 0.211	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 19 report
1072.05	peritectoid: δ + η -> ε	δ: Si 0.179; η: Si 0.238; ε: Si 0.211	model	[1] Kroupa 2024	Table 2, p. 6, row 20 report
1071	η + δ = ε	η: Si 0.25; δ: Si 0.175; ε: Si 0.21	model	[2] Gierlotka 2013	Table 4, p. 5, row 28 report
1062	β = δ + κ	β: Si 0.153; δ: Si 0.175; κ: Si 0.138	model	[2] Gierlotka 2013	Table 4, p. 5, row 23 report
1060.15	eutectoid: β -> δ+κ	β: Si 0.157; δ: Si 0.175; κ: Si 0.142	model	[3] Yan 2000	Table 1, p. 3, row 10 report
1060	β = δ + κ	β: Si 0.157; δ: Si 0.175; κ: Si 0.142	model	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 24 report
1059.15	eutectoid: β -> δ+κ	β: Si 0.154; δ: Si 0.175; κ: Si 0.125	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 12 report
1059	β = δ + κ	β: Si 0.154; δ: Si 0.175; κ: Si 0.125	model	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 26 report
1058.15	eutectoid: β -> δ+κ	β: Si 0.16; δ: Si 0.176; κ: Si 0.143	experimental	[3] Yan 2000 cites Smith 1940	Table 1, p. 3, row 11 report
1058	β = δ + κ	β: Si 0.16; δ: Si 0.176; κ: Si 0.143	experimental	[2] Gierlotka 2013 cites Smith 1940	Table 4, p. 5, row 25 report
1055.15	eutectoid: β(CuSi) -> δ + κ	β(CuSi): Si 0.15; δ: Si 0.175; κ: Si 0.136	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 22 report
1054.15	eutectoid: β(CuSi) -> δ + κ	β(CuSi): Si 0.162; δ: Si 0.17; κ: Si 0.142	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 21 report
1054	β = δ + κ	β: Si 0.16; δ: Si 0.173; κ: Si 0.14	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 27 report
1053.85	eutectoid: β(CuSi) -> δ + κ	β(CuSi): Si 0.15; δ: Si 0.173; κ: Si 0.135	model	[1] Kroupa 2024	Table 2, p. 6, row 23 report
1008.15	δ -> ε + γ	δ: Si 0.179; ε: Si 0.211; γ: Si 0.178	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 25 report
1008.15	peritectoid: δ+κ -> γ	δ: Si 0.175; κ: Si 0.121; γ: Si 0.164	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 9 report
1008	δ = κ + γ	δ: Si 0.175; κ: Si 0.121; γ: Si 0.164	unspecified	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 21 report
1008	δ = κ + γ	δ: Si 0.169; κ: Si 0.137; γ: Si 0.175	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 22 report
1008	δ = ε + γ	δ: Si 0.179; ε: Si 0.21; γ: Si 0.174	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 17 report
1007.35	polymorphic: δ -> γ	δ: Si 0.175; γ: Si 0.175	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 26 report
1007.15	eutectoid: δ -> γ + κ	δ: Si 0.169; γ: Si 0.175; κ: Si 0.132	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 27 report
1006.95	peritectoid: δ + ε -> κ	δ: Si 0.174; ε: Si 0.211; κ: Si 0.176	model	[1] Kroupa 2024	Table 2, p. 6, row 24 report
1005.05	eutectoid: δ -> γ + κ	δ: Si 0.172; γ: Si 0.175; κ: Si 0.131	model	[1] Kroupa 2024	Table 2, p. 6, row 28 report
1005	δ = κ + γ	δ: Si 0.175; κ: Si 0.133; γ: Si 0.175	model	[2] Gierlotka 2013	Table 4, p. 5, row 18 report
1005	δ = ε + γ	δ: Si 0.175; ε: Si 0.21; γ: Si 0.175	model	[2] Gierlotka 2013	Table 4, p. 5, row 13 report
1002.15	peritectoid: δ+κ -> γ	δ: Si 0.175; κ: Si 0.139; γ: Si 0.164	model	[3] Yan 2000	Table 1, p. 3, row 7 report
1002.15	peritectoid: δ+κ -> γ	δ: Si 0.1765; κ: Si 0.145; γ: Si 0.171	experimental	[3] Yan 2000 cites Smith 1940	Table 1, p. 3, row 8 report
1002	δ = κ + γ	δ: Si 0.176; κ: Si 0.145; γ: Si 0.171	experimental	[2] Gierlotka 2013 cites Smith 1940	Table 4, p. 5, row 20 report
1002	δ = κ + γ	δ: Si 0.175; κ: Si 0.139; γ: Si 0.164	experimental	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 19 report
984.15	eutectoid: δ -> ε+γ	δ: Si 0.175; ε: Si 0.21; γ: Si 0.164	model	[3] Yan 2000	Table 1, p. 3, row 4 report
984	δ = ε + γ	δ: Si 0.175; ε: Si 0.21; γ: Si 0.164	experimental	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 14 report
983.15	eutectoid: δ -> ε+γ	δ: Si 0.182; ε: Si 0.212; γ: Si 0.176	experimental	[3] Yan 2000 cites Smith 1929	Table 1, p. 3, row 5 report
983	δ = ε + γ	δ: Si 0.182; ε: Si 0.212; γ: Si 0.176	experimental	[2] Gierlotka 2013 cites Smith 1929	Table 4, p. 5, row 15 report
956.15	eutectoid: δ -> ε+γ	δ: Si 0.175; ε: Si 0.2; γ: Si 0.164	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 6 report
956	δ = ε + γ	δ: Si 0.175; ε: Si 0.2; γ: Si 0.164	unspecified	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 16 report
892	ε + η = η′	ε: Si 0.21; η: Si 0.242; η′: Si 0.241	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 12 report
892	ε + η = η′	ε: Si 0.21; η: Si 0.243; η′: Si 0.242	model	[2] Gierlotka 2013	Table 4, p. 5, row 11 report
891.15	peritectoid: ε + η -> η′	ε: Si 0.211; η: Si 0.242	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 29 report
888.15	peritectoid: ε + η -> η′	ε: Si 0.211; η: Si 0.24; η′: Si 0.235; η': Si 0.235	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 30 report
886.95	peritectoid: ε + η -> η′	ε: Si 0.211; η: Si 0.239	model	[1] Kroupa 2024	Table 2, p. 6, row 31 report
843.15	peritectoid: ε + η′ -> η″	ε: Si 0.211; η′: Si 0.244	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 35 report
842	ε + η′ = η″	ε: Si 0.21; η′: Si 0.243; η″: Si 0.242	model	[2] Gierlotka 2013	Table 4, p. 5, row 10 report
831.55	eutectoid: η -> η′ + (Si)	η: Si 0.249; (Si): Si 1	model	[1] Kroupa 2024	Table 2, p. 6, row 34 report
831.05	eutectoid: η -> η′ + (Si)	η: Si 0.24; η′: Si 0.235; (Si): Si 1; η': Si 0.235	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 33 report
830	Diamond_A4(Si) + η = η′	Diamond_A4(Si): Si 1; η: Si 0.26; η′: Si 0.26	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 9 report
829.05	eutectoid: κ -> γ + (Cu)	κ: Si 0.105; γ: Si 0.172; (Cu): Si 0.093	model	[1] Kroupa 2024	Table 2, p. 6, row 40 report
828.15	eutectoid: η -> η′ + (Si)	η: Si 0.26; (Si): Si 1	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 32 report
828	Diamond_A4(Si) + η = η′	Diamond_A4(Si): Si 1; η: Si 0.259; η′: Si 0.258	model	[2] Gierlotka 2013	Table 4, p. 5, row 8 report
825.45	eutectoid: κ -> γ + (Cu)	κ: Si 0.108; γ: Si 0.175; (Cu): Si 0.095	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 39 report
825.15	eutectoid: κ -> (Cu)+γ	κ: Si 0.105; (Cu): Si 0.093; γ: Si 0.164	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 3 report
825.15	eutectoid: κ -> (Cu)+γ	κ: Si 0.1105; (Cu): Si 0.0995; γ: Si 0.1715	experimental	[3] Yan 2000 cites Smith 1940	Table 1, p. 3, row 2 report
825.15	eutectoid: κ -> (Cu)+γ	κ: Si 0.115; (Cu): Si 0.097; γ: Si 0.164	model	[3] Yan 2000	Table 1, p. 3, row 1 report
825.15	eutectoid: κ -> γ + (Cu)	γ: Cu 0.825, Si 0.175	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 38 report
825	κ = FCC_A1(Cu) + γ	κ: Si 0.115; FCC_A1(Cu): Si 0.097; γ: Si 0.164	experimental	[2] Gierlotka 2013 cites Xinyan 2013	Table 4, p. 5, row 4 report
825	κ = FCC_A1(Cu) + γ	κ: Si 0.115; FCC_A1(Cu): Si 0.096; γ: Si 0.169	experimental	[2] Gierlotka 2013 cites Sufryd 2011 doi	Table 4, p. 5, row 7 report
825	κ = FCC_A1(Cu) + γ	κ: Si 0.11; FCC_A1(Cu): Si 0.099; γ: Si 0.175	experimental	[2] Gierlotka 2013 cites Smith 1940	Table 4, p. 5, row 5 report
825	κ = FCC_A1(Cu) + γ	κ: Si 0.105; FCC_A1(Cu): Si 0.093; γ: Si 0.164	unspecified	[2] Gierlotka 2013 cites Buhler 1998	Table 4, p. 5, row 6 report
825	κ = FCC_A1(Cu) + γ	κ: Si 0.115; FCC_A1(Cu): Si 0.092; γ: Si 0.175	model	[2] Gierlotka 2013	Table 4, p. 5, row 3 report
822.25	peritectoid: ε + η′ -> η″	ε: Si 0.211; η′: Si 0.235	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 36 report
822.05	peritectoid: ε + η′ -> η″	ε: Si 0.211; η′: Si 0.236	model	[1] Kroupa 2024	Table 2, p. 6, row 37 report
749.45	eutectoid: η′ -> η″ + (Si)	η′: Si 0.235; (Si): Si 1	model	[1] Kroupa 2024 cites Hallstedt 2016 doi	Table 2, p. 6, row 42 report
742.35	eutectoid: η′ -> η″ + (Si)	η′: Si 0.245; (Si): Si 1	model	[1] Kroupa 2024	Table 2, p. 6, row 43 report
740.15	eutectoid: η′ -> η″ + (Si)	η′: Cu 0.75, Si 0.25; η″: Cu 0.75, Si 0.25	experimental	[1] Kroupa 2024 cites Sufryd 2011 doi	Table 2, p. 6, row 41 report
740	Diamond_A4(Si) + η′ = η″	Diamond_A4(Si): Si 1; η′: Si 0.258; η″: Si 0.257	model	[2] Gierlotka 2013	Table 4, p. 5, row 1 report
740	Diamond_A4(Si) + η′ = η″	Diamond_A4(Si): Si 1; η′: Si 0.235; η″: Si 0.23	unspecified	[2] Gierlotka 2013 cites Ghosh 2001 doi	Table 4, p. 5, row 2 report

Other properties

Phase transition (2)

Phase transition, Cu–Si system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	1132.15 K	1132.15	congruent melting: L -> η L: Si 0.24; η: Si 0.24	model	[3] Yan 2000	Table 1, p. 3, row 31 report
Phase transition	1132.15 K	1132.15	congruent melting: L -> η L: Si 0.24; η: Si 0.24	experimental	[3] Yan 2000 cites Buhler 1998	Table 1, p. 3, row 32 report

Crystal structure (14)

Crystal structure, Cu–Si system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Lattice a	2.854 Å	298.15	Bcc	model	[4] Soldi 2019 cites Olesinski 1986 doi	Table 1, p. 3, row 3 report
Lattice a	5.4306 Å	298.15	Diamond	model	[4] Soldi 2019 cites Olesinski 1986 doi	Table 1, p. 3, row 10 report
Lattice a	3.6149 Å	298.15	Fcc	model	[4] Soldi 2019 cites Olesinski 1986 doi	Table 1, p. 3, row 1 report
Lattice a	2.5622 Å	298.15	Hcp	model	[4] Soldi 2019 cites Olesinski 1986 doi	Table 1, p. 3, row 2 report
Lattice a	6.198 Å	298.15	γ-Cu33Si7 alloy: Si 0.175	model	[4] Soldi 2019 cites Olesinski 1986 doi	Table 1, p. 3, row 5 report
Lattice a	4.036 Å	298.15	δ-Cu33Si7 alloy: Si 0.175	model	[4] Soldi 2019 cites Mattern 2007	Table 1, p. 3, row 4 report
Lattice a	9.718 Å	298.15	ε-Cu15Si4 alloy: Si 0.210526	model	[4] Soldi 2019 cites Mattern 2007	Table 1, p. 3, row 6 report
Lattice a	2.47 Å	298.15	η-Cu3Si alloy: Si 0.25	experimental	[4] Soldi 2019 cites Solberg 1978 doi	Table 1, p. 3, row 7 report
Lattice a	4.72 Å	298.15	η′-Cu3Si alloy: Si 0.25	experimental	[4] Soldi 2019 cites Solberg 1978 doi	Table 1, p. 3, row 8 report
Lattice a	76.76 Å	298.15	η″-Cu3Si alloy: Si 0.25	experimental	[4] Soldi 2019 cites Solberg 1978 doi	Table 1, p. 3, row 9 report
Lattice b	7 Å	298.15	η″-Cu3Si alloy: Si 0.25	experimental	[4] Soldi 2019 cites Solberg 1978 doi	Table 1, p. 3, row 9 report
Lattice c	4.1823 Å	298.15	Hcp	model	[4] Soldi 2019 cites Olesinski 1986 doi	Table 1, p. 3, row 2 report
Lattice c	4.943 Å	298.15	δ-Cu33Si7 alloy: Si 0.175	model	[4] Soldi 2019 cites Mattern 2007	Table 1, p. 3, row 4 report
Lattice c	21.94 Å	298.15	η″-Cu3Si alloy: Si 0.25	experimental	[4] Soldi 2019 cites Solberg 1978 doi	Table 1, p. 3, row 9 report

Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

Ales Kroupa, Ondrej Zobac, Adela Zemanova, Klaus W. Richter, CALPHAD-Type Reassessment of Cu-Si and Full Assessment of the Al-Cu-Si Systems, J. Phase Equilib. Diffus. 45, 1206-1243 (2024). doi:10.1007/s11669-024-01160-5
Wojciech Gierlotka, Md. Azizul Haque, On the binary (Cu + Si) system: Thermodynamic modelling of the phase diagram and atomic mobility in face centred cubic phase, The Journal of Chemical Thermodynamics 57, 32-38 (2013). doi:10.1016/j.jct.2012.07.025
Xinyan Yan, Y.A Chang, A thermodynamic analysis of the Cu–Si system, Journal of Alloys and Compounds 308, 221-229 (2000). doi:10.1016/s0925-8388(00)00983-x
Luca Soldi, Annabelle Laplace, Mathieu Roskosz, Stéphane Gossé, Phase diagram and thermodynamic model for the Cu-Si and the Cu-Fe-Si systems, Journal of Alloys and Compounds 803, 61-70 (2019). doi:10.1016/j.jallcom.2019.06.236

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735859
R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735891
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 the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); 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). 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_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@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}
}