Ce2Dy2O7 is a rare-earth oxide ceramic belonging to the pyrochlore family, combining cerium and dysprosium oxides in a stable crystalline structure. This material is primarily investigated for high-temperature thermal barrier coating (TBC) applications in aerospace and power generation, where its rare-earth composition offers improved thermal stability and lower thermal conductivity compared to conventional yttria-stabilized zirconia (YSZ). The cerium-dysprosium combination is notable for enhanced chemical durability in oxidizing and molten salt environments, making it particularly attractive for next-generation gas turbine engines and concentrated solar power systems operating at extreme temperatures.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 147.0 | GPa | — | ||
Poisson's Ratio(ν) | 0.3000 | - | — | ||
Shear Modulus(G) | 69.51 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 7.473 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 2.079 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 23.90 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.2220 | C/m² | — | ||
Seebeck Coefficient(S) | -517.7 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.08850 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.655 | eV/atom | — |