Y₂Ta₂O₈ is a rare-earth tantalate ceramic compound combining yttrium and tantalum oxides, belonging to the family of high-temperature ceramic oxides. This material is primarily of research and development interest for advanced aerospace and thermal barrier applications, where its high melting point, chemical stability, and mechanical stiffness make it a candidate for extreme-environment coatings and structural components. Compared to conventional thermal barrier ceramics like yttria-stabilized zirconia, tantalate-based oxides offer enhanced oxidation resistance and potential for higher temperature service, though industrial adoption remains limited and material behavior is still being characterized.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 157.1 | GPa | DFT · OptB88vdW | ||
Shear Modulus(G) | 75.15 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.054 | eV | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | -3.522 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data