Pd–Si system

94 accepted literature values from 2 paper(s) (experimental 38, model 22, DFT 34); 5 calculated phase diagram(s). 14 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 (16) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	38
model	22
DFT	34

Accepted values by property group
Property group	Values
invariant reaction	40
phase equilibrium	18
formation	36

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
PdSi-05The.tdb	Thermodata, unpublished work, 2005.	`4902a5627012ae086508f2f209f47e519884eaff3a2be54e4f086723b67aec96`	viewer · TDB · JSON
PdSi-06Du.tdb	Z. Du, C. Guo, X. Yang, T. Liu, Intermetallics, 14, 560-69(2006). doi:10.1016/j.intermet.2005.09.008	`cd9b240e762b0dd6b1e95317b4a8abfb894e3a49e8bf641d595a2eba32740c01`	viewer · TDB · JSON
PdSi-16Zho.tdb	S.H. Zhou, Y. Huo, R.E. Napolitano, Metall. Mater. Trans. A, 47, 194-208(2016). doi:10.1007/s11661-015-3206-8	`4aee6a8362e3736660fd7717e9b410f13211d4ddfb5b0b20bf9f9d62a0479602`	viewer · TDB · JSON
PdSi-20Jia.tdb	C. Jiang, I.J. van Rooyen, S. Meher, Comput. Mater. Sci., 171, 109238(2020). doi:10.1016/j.commatsci.2019.109238	`6df20c7b29268e2c3997d61d7b781fb8f5cf077b5a4d3119786f45da5fc3f501`	viewer · TDB · JSON
PdSi-85Sau.tdb	N. Saunders, Calphad, 9, 297-309(1985). doi:10.1016/0364-5916(85)90001-X	`bc4cb871532e7a4cd1f841da1927e2530afdec8ab5732af1105c086dd65b7159`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
PdSi-05The.tdb	1317.22	LIQUID (x(Si) 0.22856) + PD3SI_D011 (x(Si) 0.25) + PD2SI_C22 (x(Si) 0.33333)
PdSi-05The.tdb	1317.22	LIQUID (x(Si) 0.22866) + PD3SI_D011 (x(Si) 0.25) + PD2SI_C22 (x(Si) 0.33333)
PdSi-05The.tdb	1317.22	LIQUID (x(Si) 0.22855) + PD3SI_D011 (x(Si) 0.25) + PD2SI_C22 (x(Si) 0.33333)
PdSi-05The.tdb	1165.58	PDSI_B31 (x(Si) 0.5) + LIQUID (x(Si) 0.53076) + DIAMOND_A4 (x(Si) 1)
PdSi-05The.tdb	1147.53	PD2SI_C22 (x(Si) 0.33333) + LIQUID (x(Si) 0.46802) + PDSI_B31 (x(Si) 0.5)
PdSi-05The.tdb	1090.57	PD9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18226) + PD3SI_D011 (x(Si) 0.25)
PdSi-05The.tdb	1090.57	PD9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18224) + PD3SI_D011 (x(Si) 0.25)
PdSi-05The.tdb	1090.57	PD9SI2 (x(Si) 0.18182) + LIQUID (x(Si) 0.18227) + PD3SI_D011 (x(Si) 0.25)
PdSi-05The.tdb	1089.37	PD5SI (x(Si) 0.16667) + LIQUID (x(Si) 0.17648) + PD9SI2 (x(Si) 0.18182)
PdSi-05The.tdb	1089.37	PD5SI (x(Si) 0.16667) + LIQUID (x(Si) 0.17647) + PD9SI2 (x(Si) 0.18182)
PdSi-05The.tdb	1061.03	FCC_A1 (x(Si) 0) + LIQUID (x(Si) 0.14019) + PD5SI (x(Si) 0.16667)
PdSi-05The.tdb	1061.03	FCC_A1 (x(Si) 0) + LIQUID (x(Si) 0.14019) + PD5SI (x(Si) 0.16667)
PdSi-05The.tdb	887.16	PD2SI_C22 (x(Si) 0.33333) + PDSI_B31 (x(Si) 0.5) + DIAMOND_A4 (x(Si) 1)
PdSi-06Du.tdb	1362.74	PD2SI_BETA (x(Si) 0.33341) + PD2SI_C22 (x(Si) 0.33404) + LIQUID (x(Si) 0.44923)
PdSi-06Du.tdb	1362.74	PD2SI_BETA (x(Si) 0.33341) + PD2SI_C22 (x(Si) 0.33404) + LIQUID (x(Si) 0.44923)
PdSi-06Du.tdb	1352.67	PD2SI_C22 (x(Si) 0.33409) + PD39SI20 (x(Si) 0.33898) + LIQUID (x(Si) 0.45132)
PdSi-06Du.tdb	1352.67	PD2SI_C22 (x(Si) 0.33409) + PD39SI20 (x(Si) 0.33898) + LIQUID (x(Si) 0.45129)
PdSi-06Du.tdb	1344.55	PD39SI20 (x(Si) 0.33898) + PD19SI10 (x(Si) 0.34483) + LIQUID (x(Si) 0.45301)
PdSi-06Du.tdb	1344.55	PD39SI20 (x(Si) 0.33898) + PD19SI10 (x(Si) 0.34483) + LIQUID (x(Si) 0.45309)
PdSi-06Du.tdb	1337.01	LIQUID (x(Si) 0.23889) + PD3SI_D011 (x(Si) 0.25) + PD2SI_BETA (x(Si) 0.33333)
PdSi-06Du.tdb	1325.83	PD3SI_D011 (x(Si) 0.25) + PD2SI_C22 (x(Si) 0.33333) + PD2SI_BETA (x(Si) 0.33333)
PdSi-06Du.tdb	1164.23	PD19SI10 (x(Si) 0.34483) + LIQUID (x(Si) 0.49261) + PDSI_B31 (x(Si) 0.5)
PdSi-06Du.tdb	1164.23	PD19SI10 (x(Si) 0.34483) + LIQUID (x(Si) 0.49264) + PDSI_B31 (x(Si) 0.5)
PdSi-06Du.tdb	1137.9	PDSI_B31 (x(Si) 0.5) + LIQUID (x(Si) 0.51798) + DIAMOND_A4 (x(Si) 0.99999)
PdSi-06Du.tdb	1137.9	PDSI_B31 (x(Si) 0.5) + LIQUID (x(Si) 0.51807) + DIAMOND_A4 (x(Si) 0.99999)
PdSi-06Du.tdb	1096.6	PD19SI10 (x(Si) 0.34483) + PDSI_B31 (x(Si) 0.5) + DIAMOND_A4 (x(Si) 0.99999)
PdSi-06Du.tdb	1096.6	PD19SI10 (x(Si) 0.34483) + PDSI_B31 (x(Si) 0.5) + DIAMOND_A4 (x(Si) 0.99999)
PdSi-06Du.tdb	1092.14	PD5SI (x(Si) 0.16667) + LIQUID (x(Si) 0.18286) + PD3SI_D011 (x(Si) 0.25)
PdSi-06Du.tdb	1088.73	FCC_A1 (x(Si) 0.00508) + LIQUID (x(Si) 0.14904) + PD5SI (x(Si) 0.16667)
PdSi-06Du.tdb	1088.68	PD5SI (x(Si) 0.16667) + PD9SI2 (x(Si) 0.18182) + PD3SI_D011 (x(Si) 0.25)
PdSi-06Du.tdb	1084.16	FCC_A1 (x(Si) 0.00508) + PD21SI4 (x(Si) 0.16036) + PD5SI (x(Si) 0.16667)
PdSi-06Du.tdb	1084.16	FCC_A1 (x(Si) 0.00508) + PD21SI4 (x(Si) 0.16036) + PD5SI (x(Si) 0.16667)
PdSi-06Du.tdb	1084.16	FCC_A1 (x(Si) 0.00508) + PD21SI4 (x(Si) 0.16036) + PD5SI (x(Si) 0.16667)
PdSi-06Du.tdb	1073.02	PD21SI4 (x(Si) 0.16323) + PD5SI (x(Si) 0.16667) + PD9SI2 (x(Si) 0.18182)
PdSi-06Du.tdb	1073.02	PD21SI4 (x(Si) 0.1632) + PD5SI (x(Si) 0.16667) + PD9SI2 (x(Si) 0.18182)
PdSi-06Du.tdb	1068.02	PD21SI4 (x(Si) 0.16322) + PD14SI3 (x(Si) 0.17647) + PD9SI2 (x(Si) 0.18182)
PdSi-06Du.tdb	1068.02	PD21SI4 (x(Si) 0.16322) + PD14SI3 (x(Si) 0.17647) + PD9SI2 (x(Si) 0.18182)
PdSi-06Du.tdb	1064.92	PD9SI2 (x(Si) 0.18182) + PD15SI4 (x(Si) 0.21053) + PD3SI_D011 (x(Si) 0.25)
PdSi-06Du.tdb	1037.31	PD14SI3 (x(Si) 0.17647) + PD9SI2 (x(Si) 0.18182) + PD15SI4 (x(Si) 0.21053)
PdSi-06Du.tdb	1025.87	PD14SI3 (x(Si) 0.17647) + PD15SI4 (x(Si) 0.21053) + PD3SI_D011 (x(Si) 0.25)
PdSi-16Zho.tdb	1321.29	PD3SI_D011 (x(Si) 0.25) + LIQUID (x(Si) 0.2667) + PD2SI_C22 (x(Si) 0.33333)
PdSi-16Zho.tdb	1171.44	PDSI_B31 (x(Si) 0.50594) + LIQUID (x(Si) 0.52184) + DIAMOND_A4 (x(Si) 1)
PdSi-16Zho.tdb	1168.49	PD2SI_C22 (x(Si) 0.347) + LIQUID (x(Si) 0.48726) + PDSI_B31 (x(Si) 0.50295)
PdSi-16Zho.tdb	1097.12	PD2SI_C22 (x(Si) 0.34965) + PDSI_B31 (x(Si) 0.50453) + DIAMOND_A4 (x(Si) 1)
PdSi-16Zho.tdb	1084.43	LIQUID (x(Si) 0.17312) + PD9SI2 (x(Si) 0.182) + PD3SI_D011 (x(Si) 0.25)
PdSi-16Zho.tdb	1078.17	LIQUID (x(Si) 0.16658) + PD5SI (x(Si) 0.167) + PD9SI2 (x(Si) 0.182)
PdSi-16Zho.tdb	1076.45	FCC_A1 (x(Si) 0.00831) + LIQUID (x(Si) 0.16025) + PD5SI (x(Si) 0.167)
PdSi-16Zho.tdb	538.57	PD5SI (x(Si) 0.167) + PD9SI2 (x(Si) 0.182) + PD3SI_D011 (x(Si) 0.25)
PdSi-20Jia.tdb	1323.33	PD3SI_D011 (x(Si) 0.25) + LIQUID (x(Si) 0.26609) + PD2SI_C22 (x(Si) 0.33333)
PdSi-20Jia.tdb	1206.13	PD2SI_C22 (x(Si) 0.33333) + LIQUID (x(Si) 0.49767) + PDSI_B31 (x(Si) 0.5)
PdSi-20Jia.tdb	1191.33	PDSI_B31 (x(Si) 0.5) + LIQUID (x(Si) 0.55382) + DIAMOND_A4 (x(Si) 1)
PdSi-20Jia.tdb	1096.01	LIQUID (x(Si) 0.18091) + PD9SI2 (x(Si) 0.18182) + PD3SI_D011 (x(Si) 0.25)
PdSi-20Jia.tdb	1095.45	PD5SI (x(Si) 0.16667) + LIQUID (x(Si) 0.17829) + PD9SI2 (x(Si) 0.18182)
PdSi-20Jia.tdb	1089.71	FCC_A1 (x(Si) 0.00113) + LIQUID (x(Si) 0.14956) + PD5SI (x(Si) 0.16667)
PdSi-85Sau.tdb	1235.79	LIQUID (x(Si) 0.24851) + PD3SI_D011 (x(Si) 0.25) + PD2SI_C22 (x(Si) 0.33333)
PdSi-85Sau.tdb	1235.79	LIQUID (x(Si) 0.24851) + PD3SI_D011 (x(Si) 0.25) + PD2SI_C22 (x(Si) 0.33333)
PdSi-85Sau.tdb	1118.52	PDSI_B31 (x(Si) 0.5) + LIQUID (x(Si) 0.57017) + DIAMOND_A4 (x(Si) 1)
PdSi-85Sau.tdb	1118.52	PDSI_B31 (x(Si) 0.5) + LIQUID (x(Si) 0.57018) + DIAMOND_A4 (x(Si) 1)
PdSi-85Sau.tdb	1118.52	PDSI_B31 (x(Si) 0.5) + LIQUID (x(Si) 0.57021) + DIAMOND_A4 (x(Si) 1)
PdSi-85Sau.tdb	1103.48	PD2SI_C22 (x(Si) 0.33333) + LIQUID (x(Si) 0.43371) + PDSI_B31 (x(Si) 0.5)
PdSi-85Sau.tdb	940.09	FCC_A1 (x(Si) 0) + LIQUID (x(Si) 0.15039) + PD3SI_D011 (x(Si) 0.25)
PdSi-85Sau.tdb	940.09	FCC_A1 (x(Si) 0) + LIQUID (x(Si) 0.15039) + PD3SI_D011 (x(Si) 0.25)
PdSi-85Sau.tdb	940.09	FCC_A1 (x(Si) 0) + LIQUID (x(Si) 0.15036) + PD3SI_D011 (x(Si) 0.25)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull PdSi-05The · CALPHAD hull PdSi-06Du · CALPHAD hull PdSi-16Zho · CALPHAD hull PdSi-85Sau

Invariant reactions (literature)

Invariant reactions reported in the literature for the Pd–Si system (40)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1677	congruent melting: liq. -> βPd2Si	liq.: Si 0.335; βPd2Si: Si 0.335	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 26 report
1677	congruent melting: liq. -> βPd2Si	liq.: Si 0.3333; βPd2Si: Si 0.3333	model	[1] Du 2006	Table 2, p. 4, row 25 report
1363	liq. + βPd2Si -> αPd2Si	liq.: Si 0.4492; βPd2Si: Si 0.3334; αPd2Si: Si 0.334	model	[1] Du 2006	Table 2, p. 4, row 27 report
1363	liq. + βPd2Si -> αPd2Si	liq.: Si 0.442; βPd2Si: Si 0.335; αPd2Si: Si 0.338	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 28 report
1353	liq. + αPd2Si -> Pd39Si20	liq.: Si 0.4513; αPd2Si: Si 0.3341; Pd39Si20: Pd 0.661017, Si 0.338983	model	[1] Du 2006	Table 2, p. 4, row 29 report
1353	liq. + αPd2Si -> Pd39Si20	liq.: Si 0.444; αPd2Si: Si 0.337; Pd39Si20: Pd 0.661017, Si 0.338983	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 30 report
1345	liq. + Pd39Si20 -> Pd19Si10	liq.: Si 0.446; Pd39Si20: Pd 0.661017, Si 0.338983; Pd19Si10: Pd 0.655172, Si 0.344828	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 32 report
1345	liq. + Pd39Si20 -> Pd19Si10	liq.: Si 0.453; Pd39Si20: Pd 0.661017, Si 0.338983; Pd19Si10: Pd 0.655172, Si 0.344828	model	[1] Du 2006	Table 2, p. 4, row 31 report
1337	liq. + βPd2Si -> Pd3Si	liq.: Si 0.2389; βPd2Si: Si 0.3333; Pd3Si: Pd 0.75, Si 0.25	model	[1] Du 2006	Table 2, p. 4, row 21 report
1337	liq. + βPd2Si -> Pd3Si	liq.: Si 0.242; βPd2Si: Si 0.33; Pd3Si: Pd 0.75, Si 0.25	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 22 report
1326	Pd3Si + βPd2Si -> αPd2Si	Pd3Si: Pd 0.75, Si 0.25; βPd2Si: Si 0.33; αPd2Si: Si 0.33	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 24 report
1326	Pd3Si + βPd2Si -> αPd2Si	Pd3Si: Pd 0.75, Si 0.25; βPd2Si: Si 0.3333; αPd2Si: Si 0.3333	model	[1] Du 2006	Table 2, p. 4, row 23 report
1181	congruent melting: liq. -> PdSi	liq.: Pd 0.5, Si 0.5; PdSi: Pd 0.5, Si 0.5	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 36 report
1170	congruent melting: liq. -> PdSi	liq.: Pd 0.5, Si 0.5; PdSi: Pd 0.5, Si 0.5	model	[1] Du 2006	Table 2, p. 4, row 35 report
1165	eutectic: liq. -> PdSi + diamond(Si)	liq.: Si 0.52; PdSi: Pd 0.5, Si 0.5; diamond(Si): Si 1	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 38 report
1164	eutectic: liq. -> Pd19Si10 + PdSi	liq.: Si 0.4926; Pd19Si10: Pd 0.655172, Si 0.344828; PdSi: Pd 0.5, Si 0.5	model	[1] Du 2006	Table 2, p. 4, row 33 report
1164	eutectic: liq. -> Pd19Si10 + PdSi	liq.: Si 0.493; Pd19Si10: Pd 0.655172, Si 0.344828; PdSi: Pd 0.5, Si 0.5	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 34 report
1138	eutectic: liq. -> PdSi + diamond(Si)	liq.: Si 0.5181; PdSi: Pd 0.5, Si 0.5; diamond(Si): Si 1	model	[1] Du 2006	Table 2, p. 4, row 37 report
1129	congruent melting: liq. -> Pd5Si	liq.: Pd 0.833333, Si 0.166667; Pd5Si: Pd 0.833333, Si 0.166667	model	[1] Du 2006	Table 2, p. 4, row 3 report
1129	congruent melting: liq. -> Pd5Si	liq.: Pd 0.833333, Si 0.166667; Pd5Si: Pd 0.833333, Si 0.166667	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 4 report
1097	PdSi -> Pd19Si10 + diamond(Si)	PdSi: Pd 0.5, Si 0.5; Pd19Si10: Pd 0.655172, Si 0.344828; diamond(Si): Si 1	experimental	[1] Du 2006 cites Langer 1983	Table 2, p. 4, row 40 report
1097	PdSi -> Pd19Si10 + diamond(Si)	PdSi: Pd 0.5, Si 0.5; Pd19Si10: Pd 0.655172, Si 0.344828; diamond(Si): Si 1	model	[1] Du 2006	Table 2, p. 4, row 39 report
1092	eutectic: liq. -> Pd5Si + Pd3Si	liq.: Si 0.179; Pd5Si: Pd 0.833333, Si 0.166667; Pd3Si: Pd 0.75, Si 0.25	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 12 report
1092	eutectic: liq. -> Pd5Si + Pd3Si	liq.: Si 0.1829; Pd5Si: Pd 0.833333, Si 0.166667; Pd3Si: Pd 0.75, Si 0.25	model	[1] Du 2006	Table 2, p. 4, row 11 report
1089	Pd5Si + Pd3Si -> Pd9Si2	Pd5Si: Pd 0.833333, Si 0.166667; Pd3Si: Pd 0.75, Si 0.25; Pd9Si2: Pd 0.818182, Si 0.181818	model	[1] Du 2006	Table 2, p. 4, row 13 report
1089	eutectic: liq. -> fcc(Pd) + Pd5Si	liq.: Si 0.149; fcc(Pd): Si 0.0051; Pd5Si: Pd 0.833333, Si 0.166667	model	[1] Du 2006	Table 2, p. 4, row 1 report
1089	eutectic: liq. -> fcc(Pd) + Pd5Si	liq.: Si 0.149; fcc(Pd): Si 0.01; Pd5Si: Pd 0.833333, Si 0.166667	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 2 report
1088	Pd5Si + Pd3Si -> Pd9Si2	Pd5Si: Pd 0.833333, Si 0.166667; Pd3Si: Pd 0.75, Si 0.25; Pd9Si2: Pd 0.818182, Si 0.181818	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 14 report
1084	fcc(Pd) + Pd5Si -> Pd21Si4	fcc(Pd): Si 0.0051; Pd5Si: Pd 0.833333, Si 0.166667; Pd21Si4: Si 0.1604	model	[1] Du 2006	Table 2, p. 4, row 5 report
1084	fcc(Pd) + Pd5Si -> Pd21Si4	fcc(Pd): Si 0.009; Pd5Si: Pd 0.833333, Si 0.166667; Pd21Si4: Si 0.1602	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 6 report
1082	Pd5Si -> Pd21Si4 + Pd9Si2	Pd5Si: Pd 0.833333, Si 0.166667; Pd21Si4: Si 0.161; Pd9Si2: Pd 0.818182, Si 0.181818	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 8 report
1073	Pd5Si -> Pd21Si4 + Pd9Si2	Pd5Si: Pd 0.833333, Si 0.166667; Pd21Si4: Si 0.1632; Pd9Si2: Pd 0.818182, Si 0.181818	model	[1] Du 2006	Table 2, p. 4, row 7 report
1068	Pd21Si4 + Pd9Si2 -> Pd14Si3	Pd21Si4: Si 0.1632; Pd9Si2: Pd 0.818182, Si 0.181818; Pd14Si3: Pd 0.823529, Si 0.176471	model	[1] Du 2006	Table 2, p. 4, row 9 report
1068	Pd21Si4 + Pd9Si2 -> Pd14Si3	Pd21Si4: Si 0.163; Pd9Si2: Pd 0.818182, Si 0.181818; Pd14Si3: Pd 0.823529, Si 0.176471	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 10 report
1065	Pd3Si + Pd9Si2 -> Pd15Si4	Pd3Si: Pd 0.75, Si 0.25; Pd9Si2: Pd 0.818182, Si 0.181818; Pd15Si4: Pd 0.789474, Si 0.210526	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 16 report
1065	Pd3Si + Pd9Si2 -> Pd15Si4	Pd3Si: Pd 0.75, Si 0.25; Pd9Si2: Pd 0.818182, Si 0.181818; Pd15Si4: Pd 0.789474, Si 0.210526	model	[1] Du 2006	Table 2, p. 4, row 15 report
1037	Pd9Si2 -> Pd14Si3 + Pd15Si4	Pd9Si2: Pd 0.818182, Si 0.181818; Pd14Si3: Pd 0.823529, Si 0.176471; Pd15Si4: Pd 0.789474, Si 0.210526	model	[1] Du 2006	Table 2, p. 4, row 17 report
1037	Pd9Si2 -> Pd14Si3 + Pd15Si4	Pd9Si2: Pd 0.818182, Si 0.181818; Pd14Si3: Pd 0.823529, Si 0.176471; Pd15Si4: Pd 0.789474, Si 0.210526	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 18 report
1026	Pd15Si4 -> Pd14Si3 + Pd3Si	Pd15Si4: Pd 0.789474, Si 0.210526; Pd14Si3: Pd 0.823529, Si 0.176471; Pd3Si: Pd 0.75, Si 0.25	model	[1] Du 2006	Table 2, p. 4, row 19 report
1026	Pd15Si4 -> Pd14Si3 + Pd3Si	Pd15Si4: Pd 0.789474, Si 0.210526; Pd14Si3: Pd 0.823529, Si 0.176471; Pd3Si: Pd 0.75, Si 0.25	experimental	[1] Du 2006 cites Massara 1993 doi	Table 2, p. 4, row 20 report

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Pd–Si system (36)
Phase	Value	T (K)	Class	Source	Location
Pd-dia	109.6 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 1 report
Pd-dia	109.6 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 1 report
Pd2Pd-γ	186.7 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 18 report
Pd2Pd-γ	186.7 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 18 report
Pd2Si-γ	-65.1 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 19 report
Pd2Si-γ	-65.1 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 19 report
Pd2Si-γ	-64.2 kJ/mol (basis unstated)		model	[2] Zhou 2016 cites Meschel 1998 doi	Table I, p. 3, row 20 report
Pd3Pd-β	44.5 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 12 report
Pd3Pd-β	44.5 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 12 report
Pd3Si-β	-57.9 kJ/mol (basis unstated)		model	[2] Zhou 2016 cites Meschel 1998 doi	Table I, p. 3, row 14 report
Pd3Si-β	-57.4 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 13 report
Pd3Si-β	-57.4 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 13 report
Pd5Pd-μ	48.7 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 2 report
Pd5Pd-μ	48.7 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 2 report
Pd5Si-μ	-40.5 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 3 report
Pd5Si-μ	-40.5 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 3 report
Pd9Pd2-α	24.5 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 7 report
Pd9Pd2-α	24.5 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 7 report
Pd9Si2-α	-42.7 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 8 report
Pd9Si2-α	-42.7 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 8 report
PdPd-δ	34.7 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 24 report
PdPd-δ	34.7 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 24 report
PdSi-δ	-50.18 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 25 report
PdSi-δ	-50.18 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 25 report
Si2Pd-γ	169.4 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 22 report
Si2Pd-γ	169.4 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 22 report
Si3Pd-β	10.6 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 16 report
Si3Pd-β	10.6 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 16 report
Si5Pd-μ	43.2 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 5 report
Si5Pd-μ	43.2 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 5 report
Si9Pd2-α	36.6 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 10 report
Si9Pd2-α	36.6 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 10 report
SiPd-δ	43.17 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 27 report
SiPd-δ	43.17 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 27 report
SiSi-δ	66.39 kJ/mol (basis unstated)		DFT	[2] Zhou 2016	Table I, p. 3, row 28 report
SiSi-δ	66.39 kJ/mol (basis unstated)	0	DFT	[2] Zhou 2016	Table I, p. 3, row 28 report

Other properties

Phase equilibrium (18)

Phase equilibrium, Pd–Si system
Property	T (K)	Phases / composition	Class	Source	Location	Quote
Phase assemblage	1006	Pd5Si-l + Pd9Si2-a alloy: Pd 0.17	experimental	[2] Zhou 2016	p. 6 report	Our results, however, clearly show Pd5 Si-l/Pd9 Si2 -a equilibrium (with no Pd14 Si3 ) for an overall composition of 17 at. pct Pd at 1006 K (733 C) (H4 in Table II).
Phase assemblage	1038	Pd9Si2-r + Pd3Si-b alloy: Si 0.2	experimental	[2] Zhou 2016	p. 6 report	To confirm the stability of the Pd15 Si4 phase, the Pd-20.0 at. pct Si alloy was treated at 1038 K (765 C) for 148 hours (H9) revealing the two phases Pd9 Si2 -r and Pd3 Si-b microstructure as shown in Figure 9 and in Table II.
Phase composition		Pd5Si Pd5Si: Pd 0.836, Si 0.164	experimental	[2] Zhou 2016	Table II, p. 4, row 3 report
Phase composition		Pd5Si + Pd9Si2 Pd5Si: Pd 0.833, Si 0.167; Pd9Si2: Pd 0.811, Si 0.189	experimental	[2] Zhou 2016	Table II, p. 4, row 7 report
Phase composition		Pd5Si + Pd9Si2 Pd5Si: Pd 0.84, Si 0.16; Pd9Si2: Pd 0.818, Si 0.182	experimental	[2] Zhou 2016	Table II, p. 4, row 4 report
Phase composition	913	Pd9Si2 + Pd3Si Pd9Si2: Pd 0.818, Si 0.182; Pd3Si: Pd 0.752, Si 0.248	experimental	[2] Zhou 2016	Table II, p. 4, row 10 report
Phase composition	934	Pd2Si + Si-dia Pd2Si: Pd 0.675, Si 0.325; Si-dia: Pd 0.001, Si 0.999	experimental	[2] Zhou 2016	Table II, p. 4, row 15 report
Phase composition	988	Pd-fcc + Pd5Si Pd-fcc: Pd 0.993, Si 0.007; Pd5Si: Pd 0.841, Si 0.159	experimental	[2] Zhou 2016	Table II, p. 4, row 1 report
Phase composition	1006	Pd5Si + Pd9Si2 Pd5Si: Pd 0.837, Si 0.163; Pd9Si2: Pd 0.815, Si 0.185	experimental	[2] Zhou 2016	Table II, p. 4, row 6 report
Phase composition	1023	Pd9Si2 + Pd3Si Pd9Si2: Pd 0.815, Si 0.185; Pd3Si: Pd 0.747, Si 0.253	experimental	[2] Zhou 2016	Table II, p. 4, row 11 report
Phase composition	1038	Pd9Si2 + Pd3Si Pd9Si2: Pd 0.814, Si 0.186; Pd3Si: Pd 0.746, Si 0.254	experimental	[2] Zhou 2016	Table II, p. 4, row 12 report
Phase composition	1080	Pd5Si + Pd9Si2 Pd5Si: Pd 0.838, Si 0.162; Pd9Si2: Pd 0.816, Si 0.184	experimental	[2] Zhou 2016	Table II, p. 4, row 8 report
Phase composition	1080	Pd9Si2 + Pd3Si Pd9Si2: Pd 0.815, Si 0.185; Pd3Si: Pd 0.748, Si 0.252	experimental	[2] Zhou 2016	Table II, p. 4, row 13 report
Phase composition	1090	Pd5Si + Pd9Si2 + Pd3Si Pd5Si: Pd 0.838, Si 0.162; Pd9Si2: Pd 0.815, Si 0.185; Pd3Si: Pd 0.748, Si 0.252	experimental	[2] Zhou 2016	Table II, p. 4, row 14 report
Phase composition	1091	Pd-fcc + Pd5Si Pd-fcc: Pd 0.985, Si 0.015; Pd5Si: Pd 0.84, Si 0.16	experimental	[2] Zhou 2016	Table II, p. 4, row 2 report
Phase composition	1091	Pd5Si + Pd9Si2 Pd5Si: Pd 0.84, Si 0.16; Pd9Si2: Pd 0.817, Si 0.183	experimental	[2] Zhou 2016	Table II, p. 4, row 5 report
Phase composition	1093	Pd3Si + Pd2Si Pd3Si: Pd 0.7494, Si 0.2506; Pd2Si: Pd 0.667, Si 0.333	experimental	[2] Zhou 2016	Table II, p. 4, row 16 report
Phase composition	1093	Pd5Si + Pd3Si Pd5Si: Pd 0.837, Si 0.163; Pd3Si: Pd 0.747, Si 0.253	experimental	[2] Zhou 2016	Table II, p. 4, row 9 report

Sources

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

Zhenmin Du, Cuiping Guo, Xiaojian Yang, Ting Liu, A thermodynamic description of the Pd–Si–C system, Intermetallics 14, 560-569 (2006). doi:10.1016/j.intermet.2005.09.008
S. H. Zhou, Y. Huo, Ralph E. Napolitano, Phase Stability for the Pd-Si System: First-Principles, Experiments, and Solution-Based Modeling, Metall Mater Trans A 47, 194-208 (2016). doi:10.1007/s11661-015-3206-8

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}
}