Ca4As2O is a calcium arsenate ceramic compound with a densely packed crystal structure. This material belongs to the family of arsenic-containing ceramics and appears primarily in research and specialized industrial contexts rather than commodity applications. Its notable stiffness and moderate density make it relevant for high-temperature or chemically harsh environments where arsenic compounds offer unique thermal or electronic properties, though commercial adoption remains limited due to arsenic toxicity concerns and the availability of safer alternative ceramics.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 61.53 | GPa | — | ||
Poisson's Ratio(ν) | 0.2100 | - | — | ||
Shear Modulus(G) | 44.36 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.422 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.237 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 25.26 | - | — | ||
| ↳ | 18.27 range 8.654–27.89median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -112.8 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.892 | eV/atom | — |