Barium hafnate (BaHfO2) is a dense ceramic compound combining barium oxide with hafnium oxide, belonging to the perovskite family of materials. While primarily investigated in research contexts, BaHfO2 is explored for high-temperature structural applications and as a potential thermal barrier or environmental barrier coating material, particularly in aerospace systems where hafnium-based ceramics offer superior oxidation and corrosion resistance compared to conventional oxides. Its notable appeal lies in the combination of hafnium's refractory properties and chemical stability, making it a candidate for extreme-environment components.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 72.27 | GPa | — | ||
Poisson's Ratio(ν) | 0.2400 | - | — | ||
Shear Modulus(G) | 44.80 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 8.074 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.5750 | µB | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.6314 | eV/atom | — | ||
Formation Energy(ΔHf) | -2.422 | eV/atom | — |