Er2Si2O7 is a rare-earth silicate ceramic compound combining erbium oxide with silica, belonging to the family of rare-earth disilicates used in high-temperature structural and functional applications. This material is primarily investigated for thermal barrier coatings, refractory linings, and advanced ceramic matrix composites in aerospace and industrial gas turbine environments where thermal stability and chemical resistance are critical. Er2Si2O7 offers potential advantages over conventional alumina-based ceramics in corrosive, high-temperature service due to its rare-earth composition, though it remains largely in research and specialized industrial development rather than commodity use.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 152.8 | GPa | — | ||
Poisson's Ratio(ν) | 0.3100 | - | — | ||
Shear Modulus(G) | 70.89 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.852 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.934 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -117.5 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.444 | eV/atom | — |