ErTaO4 is an erbium tantalate ceramic compound belonging to the rare-earth metal oxide family, valued for its thermal and chemical stability at high temperatures. This material is primarily investigated for advanced refractory applications and as a thermal barrier coating candidate in aerospace and energy systems, where its rare-earth tantalate composition offers potential advantages in oxidation resistance and phase stability compared to conventional alumina-based alternatives. ErTaO4 remains largely a research-phase material, with ongoing development for next-generation high-temperature applications where superior thermal durability and chemical inertness are critical.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 23,429.4 | ksi | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 11,131.6 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.3381 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.059 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -344.1 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.527 | eV/atom | — |