BaBe₂Si₂O₇ is a barium beryllium silicate ceramic compound belonging to the silicate family of structural ceramics. This material is primarily of research and specialized industrial interest, valued for applications requiring combinations of low density, thermal stability, and optical transparency in high-performance ceramic systems. It is encountered in optics, aerospace thermal protection systems, and specialized refractory applications where silicate ceramics with alkaline-earth dopants offer advantages over conventional alternatives in thermal cycling resistance and chemical durability.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 91.28 | GPa | — | ||
Poisson's Ratio(ν) | 0.2000 | - | — | ||
Shear Modulus(G) | 67.13 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.930 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 6.056 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 9.456 | - | — | ||
Piezoelectric Modulus(eij) | 0.3801 | C/m² | — | ||
Seebeck Coefficient(S) | -92.86 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.113 | eV/atom | — |