FeSi is an iron-silicon intermetallic compound that combines the structural properties of iron with silicon's hardening and corrosion-resistance characteristics. It is used primarily in specialized alloy additions, casting applications, and research contexts where enhanced stiffness, moderate density, and wear resistance are valued. The material is notable for its role as a strengthening phase in ferrous alloys and as an intermediate compound in silicon steel production, offering engineers an option for applications requiring improved hardness without the brittleness of pure ceramics.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 30,670.4 | ksi | — | ||
| ↳ | 30,670.4 | ksi | — | ||
| ↳ | 29,728.4 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.05515 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2310 | - | — | ||
| ↳ | 0.2500 | - | — | ||
Shear Modulus(G)3 entries | 20,107.7 | ksi | — | ||
| ↳ | 20,107.7 | ksi | — | ||
| ↳ | 18,054.3 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2258 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.1530 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 112.3 | - | — | ||
| ↳ | 87.90 | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.6593 | C/m² | — | ||
| ↳ | 0.3065 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.4001 | eV/atom | — | ||
| ↳ | -0.4191 | eV/atom | — |