Dy2Hf2O7 is a rare-earth hafnium oxide ceramic belonging to the pyrochlore family, combining dysprosium and hafnium oxides in a complex crystalline structure. This material is primarily of research and development interest for extreme-temperature structural applications, particularly as a thermal barrier coating (TBC) candidate and in nuclear fuel applications, where its high melting point, low thermal conductivity, and radiation tolerance offer advantages over conventional stabilized zirconia systems. Its use remains largely experimental, with development focused on aerospace propulsion, advanced nuclear reactors, and other high-heat environments where corrosion and thermal cycling resistance are critical.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 9.179 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 3.312 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -154.9 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.827 | eV/atom | — |