SSOL: SGTE Solutions Database Revision History

Software release version 2025a (January 2025)

• In this release there are now 1053 assessed systems (879 binary, 154 ternary, and 20 higher-order systems) and 2352 phases.

Binary Systems

• Updated 19 binary systems: Ag-Te, As-Ga, Al-Sr, Al-Ta, Be-Si, Ca-Mg, Ca-Pb, Co-Cu, Co-Sn, Co-Ti, Ga-Hg, Ga-Mg, Mg-Sn, Pb-Sn, Si-Te, Si-Sr, Si-Y, Au-Pr (removed), Mn-Ni (reinstated).

• For some problematic binary systems e.g. with inverse liquid miscibility gap, additional information of maximum recommended temperature of calculation is included in the corresponding reference. This information (i.e. lists of references) are available as follows:

  • Console Mode: After the GET command.
  • Graphical Mode: After performing the System Definer activity it is either listed in the Event Log or available on the Data Sources tab.
• Added 96 new binary systems as listed in the table below.

New Binaries
Ag-As	Ag-P	Ag-S	Ag-Sm	Ag-Yb	Al-Am	Al-H	Al-K	Al-Na	Al-Tl
As-Te	As-U	As-Zn	Au-Dy	Au-Gd	Au-Lu	Au-Th	Au-Yb	B-Er	B-La
B-Lu	B-Pr	B-Ta	B-Tm	B-Zn	Ba-Fe	Ba-Ga	Ba-Ge	Ba-Yb	Be-C
Bi-Cr	Bi-Rh	C-Dy	C-Y	Ca-Ce	Ca-Fe	Ca-Ni	Ce-Pr	Ce-Pt	Ce-Te
Co-La	Co-Mg	Co-Nd	Co-Te	Co-Th	Cr-Re	Cr-U	Cs-Mo	Cu-Dy	Cu-Pu
Cu-Ta	Cu-U	Dy-Si	Dy-Zn	Er-Lu	Er-Zn	Eu-Ga	Fe-Ho	Fe-Lu	Fe-Pu
Fe-Rh	Fe-Th	Fe-Tm	Ga-Te	Gd-Sm	Gd-Ti	Gd-Tl	Ge-Lu	H-Mg	H-Na
H-Nb	Hf-Ru	Hg-Te	Ho-Ni	Ho-Sb	Ho-Zn	In-Ir	In-Na	In-Sr	Ir-Ti
K-Sb	K-Te	K-V	La-Mn	La-Mo	La-Nd	La-Pb	La-Pr	Li-Te	Nb-Re
Pb-Se	Re-Ta	S-Sn	Se-Sn	Sn-Te	Sr-Te

Ternary Systems

• Fe-Mn-Ni reinstated.
• Added 10 new ternary systems as listed in the table below.

New Ternaries
Ag-Sn-Te	Al-Si-Sr	As-Ga-Zn	Be-C-Si	C-Dy-Si
C-Si-Y	Ca-Ce-Mg	Ca-Mg-Sn	Ga-Hg-Mg	Pb-Se-Sn

Unary Systems

• Update of basic element data to be consistent with Unary 5.1, except that ORTHORHOMBIC_S renamed as ORTHORHOMBIC_A16.
• B solid solution now named as BETA_RHOMBO_B105.

GAS Phase

• Te gas species (Te and Te2) updated.
• Added gas species for Ga, As, and Si.

Other Updates

• G(BCT_A5,PD;0) fixed.
• G(DHCP,BI;0) fixed.
• Eu and Pu removed from HCP_A3 (no unary, not appearing in any system).
• G(FCC_A1,PR:VA;0) updated.
• G(HCP_ZN,HG:VA;0) added.
• Ca removed from LAVES_C14 as it is not appearing in any system.
• G(M4N,CR:VA;0) fixed.
• G(MU_PHASE,MN:MN:MN;0) fixed. MN removed from SL 2 and 3. Not required.
• G(RHOMBOHEDRAL_A7,ND;0) fixed.
• G(RHOMB_C19,MN) fixed.

Software release version 2022a (December 2021/January 2022)

New Binary and Ternary Systems

• In total, SSOL8 contains 783 binaries and 144 ternaries.
• 1 new ternary = B-Mo-Ti
• 101 new binary systems as listed in the table:

New Binaries
Ag-Co	Am-Fe	B-Ce	Be-V	Bi-Rb	Ca-Ti	Ce-Nd	Cu-Na	Ga-Li	Ge-Hf
Si-Te	Ag-La	Am-Ga	B-Ga	Bi-Cs	Bi-Sr	Ca-V	Ce-Sn	Cu-Se	Ga-Na
Ge-K	Ag-Na	Am-Np	Ba-Bi	Bi-Dy	Bi-Te	Cd-Fe	Ce-Ti	Er-Ge	Ga-Sr
Ge-Mn	Al-Ba	Am-Pu	Ba-Ni	Bi-Er	Bi-Ti	Cd-Mg	Ce-Zn	Er-Ti	Ga-Tb
Ge-Nb	Al-Pu	Am-U	Ba-Pb	Bi-Fe	Bi-U	Cd-Mn	Ce-Zr	Er-Zr	Ga-Tl
Ge-Sc	Al-Re	Am-Zr	Ba-Ti	Bi-La	Bi-V	Cd-Pu	Co-Re	Eu-Pb	Ga-V
Ge-Yb	Al-S	Au-Ce	Ba-V	Bi-Li	Bi-Yb	Cd-Se	Co-Sr	Eu-Te	Ga-Zr
Ge-Zr	Al-Te	Au-Nd	Be-Mo	Bi-Mg	C-Ge	Cd-Sr	Co-U	Fe-In	Gd-Pb
Hf-Mn	Al-U	Au-Sc	Be-Pu	Bi-Mn	Ca-In	Cd-Ti	Cr-Na	Fe-Np	Gd-Y
Li-Sb	Al-Yb	B-Cd	Be-Si	Bi-Na	Ca-Sn	Cd-V	Cu-Hg	Ga-La	Gd-Zn
Mg-Pb

New Phases Added

• 312 new phases added. See SSOL9 Phase Models for a list.
• Boron (B) has been added to the gas phase.

Software release 2020a (January 2020)

SSOL7 contains assessed thermodynamic data from the literature and provided by SGTE members for:

• 845 alloy systems (682 binary systems, 143 ternary systems, 20 higher-order systems) incorporating a total of 1711 different phases. Some of these phases may be crystallographically the same but have been treated as different phases where modeling between different datasets may not be compatible. The data have been tested using Thermo‑Calc over the temperature range 300 - 6000 K.
• The BCC_B2 FCC_L12 FCC_COV FCC_AUCU and GAS phases are SUSPENDED by default.
• Gas phase data have been included for species involving Al, C, Ca, Cd, Cu, H, La, Li, Mg, Nd, Ni, N, O, P and Te.
• A full list of all assessed systems and phases are included in the documentation, and all binary and ternary systems can be plotted using the BINARY_DIAGRAM and TERNARY_DIAGRAM modules in Thermo‑Calc. It should be noted that some of the ternary liquidus surfaces are not reliable. This is because many of the ternary systems are only partially assessed, and others exhibit ternary inverted miscibility gaps that disturb the calculation. It is hoped that future releases by SGTE will address this issue, either by improving the dataset or providing a recommended maximum temperature of calculation such as is provided for some of the binary systems.

Software release version: 2016a (June 2016)

SSOL6 contains assessed thermodynamic data from the literature and provided by SGTE members. SSOL6 includes 729 alloy systems consisting of: 575 binary systems, 133 ternary systems, 20 higher order systems, and incorporating a total of 1338 phases.

The key changes between SSOL5 and SSOL6 are listed below.

• Hydrogen (H) is added to the database – now 79 elements.

Many binary and ternary systems are added or updated in SSOL6 including the following systems

• Ag-Te, Ce-V, Ge-R, Mg-Pr, Ru-Si, Al-Cr, Co-V, Ge-Si, Mg-Sr, Ru-Sn, Al-Y, Cr-Ge, Ge-Sr, Mg-Zr, Si-Sn, Bi-Tb, Cr-Y, Ge-Te, Mn-Sr, V-Y, Bi-Tm, Cr-Zn, H-Li, Mn-Zn, Bi-Y, Cu-Er, Ho-Mn, Mo-Y, B-Mn Cu-H, Ho-Mo, Nd-Y, Ca-H, Cu-Pd, Ho-V, Ni-Sr, Ca-Sr, Eu-In, H-Pd, Pb-Pt, Ce-Cr, Fe-Sr, In-Yb, Pb-Te, Ce-Mo, Fe-Zn, La-V, Pd-Si.
• Cu-H-Pd, Fe-Si-Zn, Ge-Ru-Si, Ge-Ru-Sn