NbO₂F is an experimental niobium oxide fluoride ceramic combining refractory oxide and fluoride chemistry, likely developed for applications requiring corrosion resistance and thermal stability in aggressive environments. While not a commercial commodity material, this composition belongs to the broader family of niobium-based ceramics and mixed-anion compounds being investigated for high-temperature electrochemical devices, solid-state electrolytes, and corrosion-resistant coatings. Engineers would consider this material primarily in research contexts where conventional oxides or fluorides prove inadequate, particularly in fluorine-bearing or highly acidic/corrosive service conditions.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 5,833.4 | ksi | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.02000 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 8,152.6 | ksi | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1509 | lb/in³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 2.360 | eV | DFT · OptB88vdW | ||
| ↳ | 3.020 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr) | 62.58 | - | DFT · OptB88vdW | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 4.576 | - | DFT · TBmBJ | ||
| ↳ | 5.440 | - | DFT · OptB88vdW | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij)2 entries | 0.000 | C/m² | DFT · OptB88vdW | ||
| ↳ | 3.727 | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE | ||
Thermoelectric Power Factor(PF)2 entries | 0.00221 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00129 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -311.9 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 429 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 4.390 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1068 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -2.745 | 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