YSi is an yttrium silicide ceramic compound combining yttrium and silicon into a hard, refractory material designed for extreme-temperature and high-stress applications. This compound exhibits properties typical of silicide ceramics—high stiffness, low density, and thermal stability—making it candidates for aerospace propulsion, thermal barriers, and structural composites where conventional metals or oxides reach their limits. YSi is primarily of research and advanced engineering interest rather than a commodity material, with development ongoing to overcome brittleness and enable broader commercial adoption in next-generation engines and hypersonic vehicles.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 89.42 | GPa | — | ||
| ↳ | 89.42 | GPa | — | ||
| ↳ | 55.82 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.4547 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.2068 | - | — | ||
| ↳ | 0.2100 | - | — | ||
Shear Modulus(G)3 entries | 65.16 | GPa | — | ||
| ↳ | 65.16 | GPa | — | ||
| ↳ | 8.170 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.404 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -3.413 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.7201 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.8364 | eV/atom | — | ||
| ↳ | -0.1313 | eV/atom | — |