Calcium selenide (CaSe) is an inorganic ceramic compound belonging to the rock-salt structured family of binary chalcogenides. It is primarily of research and specialized industrial interest, used in applications requiring infrared optical properties, semiconductor research, and high-temperature structural applications where its ionic bonding provides thermal stability. Engineers consider CaSe for niche optoelectronic and photonic applications where its optical transparency in the infrared spectrum offers advantages over more conventional ceramics, though its commercial availability and mechanical reliability in service remain limited compared to established engineering ceramics.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 52.20 | GPa | — | ||
Poisson's Ratio(ν) | 0.2200 | - | — | ||
Shear Modulus(G) | 36.96 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.812 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 4.870 | eV | — | ||
| ↳ | 2.137 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 12.47 | - | — | ||
| ↳ | 11.86 | - | — | ||
| ↳ | 5.187 range 3.979–6.394median 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) | -206.4 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -1.908 | eV/atom | — | ||
| ↳ | -2.176 | eV/atom | — |