Aluminum hydride (AlH₃) is a lightweight metal hydride compound that exists primarily as a research material rather than a commercial engineering product. It is studied intensively as a potential hydrogen storage medium and as a precursor for aluminum-based materials, given its high hydrogen content by weight and density significantly lower than bulk aluminum. While not yet widely deployed in production applications, AlH₃ and related aluminum hydrides are of interest in aerospace, portable power systems, and chemical industries where compact hydrogen generation or storage is critical; its instability and reactivity with moisture have limited mainstream adoption, but ongoing materials research continues to explore stabilized forms and composite variants for future energy applications.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 35.27 | GPa | — | ||
Poisson's Ratio(ν) | 0.1500 | - | — | ||
Shear Modulus(G) | 32.74 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 1.068 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 3.488 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 11.72 | - | — | ||
| ↳ | 12.46 | - | — | ||
| ↳ | 8.658 range 5.023–12.29median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -209.5 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.02720 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.02954 | eV/atom | — | ||
| ↳ | -0.07486 | eV/atom | — |