Lithium hydride (LiH) is an ionic ceramic compound consisting of lithium cations and hydride anions, belonging to the family of metal hydrides. It is notable for its exceptionally low density combined with significant stiffness, making it attractive for specialized aerospace and energy applications where weight reduction is critical. LiH has seen limited but growing interest in advanced thermal management systems, radiation shielding (particularly for spacecraft), and as a potential hydrogen storage material, though most current applications remain in research and development phases rather than large-scale industrial production.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 38.00 | GPa | — | ||
| ↳ | 36.03 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.09702 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.08970 | - | — | ||
| ↳ | 0.08000 | - | — | ||
Shear Modulus(G)2 entries | 42.92 | GPa | — | ||
| ↳ | 43.46 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 825 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 3.558 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 16.09 | - | — | ||
| ↳ | 9.550 range 4.752–14.35median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -266.5 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.02800 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.4700 | eV/atom | — | ||
| ↳ | -0.5040 | eV/atom | — |