Be₂Fe is an intermetallic compound combining beryllium and iron, belonging to the class of lightweight metallic intermetallics. This material is primarily of research and specialized industrial interest rather than commodity use, valued for its combination of low density with high stiffness, making it relevant for weight-critical structural applications. The Be-Fe system is explored in aerospace and defense contexts where extreme lightweighting and thermal stability are required, though beryllium's toxicity and cost limit broader adoption compared to conventional aluminum or titanium alloys.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 158.4 | GPa | — | ||
| ↳ | 158.4 | GPa | — | ||
| ↳ | 1.750 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.01589 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.1473 | - | — | ||
| ↳ | -0.1100 | - | — | ||
Shear Modulus(G)3 entries | 146.0 | GPa | — | ||
| ↳ | 146.0 | GPa | — | ||
| ↳ | 350.0 | MPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.802 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 6.822 | µB | — | ||
Seebeck Coefficient(S) | -6.530 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.2690 | eV/atom | — |