YHO2 is a rare-earth oxide ceramic compound belonging to the yttrium-hafnium oxide family, potentially developed for high-temperature structural and refractory applications. While not widely commercialized as a standard material, ceramics in this composition class are investigated for demanding environments requiring thermal stability, mechanical rigidity, and resistance to oxidation—particularly in aerospace propulsion, nuclear systems, and advanced manufacturing. Engineers would consider this material family when conventional oxides or carbides fall short in extreme thermal cycling or chemical corrosion scenarios, though availability and processing data may be limited compared to established alternatives.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 113.4 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.2800 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 60.85 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.548 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 4.368 | eV | DFT · OptB88vdW | ||
| ↳ | 5.991 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 40.71 | - | DFT · OptB88vdW | ||
| ↳ | 8.456 range 3.694–13.22median of 2 measurements | - | DFT · PBEsol | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 3.791 | - | DFT · OptB88vdW | ||
| ↳ | 3.179 | - | DFT · TBmBJ | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij)2 entries | 0.000 | C/m² | DFT · OptB88vdW | ||
| ↳ | 1.004 | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE | ||
Thermoelectric Power Factor(PF)2 entries | 0.00103 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00114 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -208.8 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 275.9 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 0.000 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -2.834 | 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