Calcium silicide (CaSi₂) is an intermetallic ceramic compound that combines calcium and silicon, forming a brittle ceramic material with moderate stiffness. It is primarily used as a deoxidizer and desulfurizer in steel production, where it removes oxygen and sulfur impurities during metallurgical processing; additionally, it finds application in specialty alloy development and as a precursor material in silicon-based ceramic synthesis. Engineers select CaSi₂ for high-temperature metallurgical operations where its chemical reactivity and moderate mechanical properties enable cost-effective purification of molten metals, though its brittle nature limits structural applications compared to tougher ceramic alternatives.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 9,023.3 | ksi | — | ||
| ↳ | 8,656.3 | ksi | — | ||
| ↳ | 9,340.4 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.09005 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.1994 | - | — | ||
| ↳ | 0.2500 | - | — | ||
Shear Modulus(G)3 entries | 6,784.5 | ksi | — | ||
| ↳ | 5,013 | ksi | — | ||
| ↳ | 5,905.9 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.08718 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -18.88 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4270 | eV/atom | — |