Er₂Be₂GeO₇ is a rare-earth beryllium germanate ceramic compound combining erbium oxide with beryllium and germanium in a mixed oxide matrix. This is a research-phase material studied primarily for its potential in high-temperature structural and optical applications, particularly where the thermal stability of rare-earth ceramics combined with beryllium's lightweight properties and germanate glass-forming capability could offer advantages over conventional refractories or transparent ceramics.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 23,538.2 | ksi | — | ||
Poisson's Ratio(ν) | 0.2800 | - | — | ||
Shear Modulus(G) | 12,399.3 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2470 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.587 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 14.76 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.09325 | C/m² | — | ||
Seebeck Coefficient(S) | -106.6 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.118 | eV/atom | — |