ScSnAu is a ternary intermetallic compound combining scandium, tin, and gold—a research-phase alloy belonging to the family of rare-earth and precious-metal intermetallics. This material is not yet established in mainstream engineering practice but represents an experimental composition of interest in materials science for exploring novel mechanical and physical properties that may arise from the combination of a light refractory metal (Sc), a common tin-based intermetallic former (Sn), and a noble metal (Au). Such ternary systems are typically investigated for fundamental studies of elastic behavior, phase stability, and potential applications in high-performance or specialized environments where conventional alloys fall short.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 89.99 | GPa | DFT | ||
| ↳ | 87.28 | GPa | DFT · OptB88vdW | ||
| ↳ | 82.18 | GPa | DFT · PBE | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | DFT · PBE | ||
Elastic Anisotropy(AU) | 0.2522 | - | DFT · PBE | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | DFT · PBE | ||
Poisson's Ratio(ν)2 entries | 0.3100 | - | DFT · OptB88vdW | ||
| ↳ | 0.3029 | - | DFT · PBE | ||
Shear Modulus(G)3 entries | 42.64 | GPa | DFT | ||
| ↳ | 36.53 | GPa | DFT · OptB88vdW | ||
| ↳ | 37.29 | GPa | DFT · PBE |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 9.196 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.1970 | eV | DFT · OptB88vdW | ||
| ↳ | 0.2380 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 23.01 | - | DFT · PBE | ||
| ↳ | 21.05 range 20.26–21.84median of 2 measurements | - | DFT · PBEsol | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 22.62 | - | DFT · OptB88vdW | ||
| ↳ | 20.82 | - | DFT · TBmBJ | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | DFT · PBE | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | DFT · PBE | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.1992 | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE | ||
Thermoelectric Power Factor(PF)2 entries | 0.00226 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00226 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -207.2 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 222.9 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 5.840 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.07840 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -0.7033 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data