NaNbN₂ is a sodium niobium nitride ceramic compound that belongs to the family of transition metal nitrides—materials engineered for exceptional hardness and refractory properties. This is a research-phase material under investigation for high-temperature structural applications where conventional alloys would soften or degrade, and for wear-resistant coatings where hardness and chemical stability are critical. The combination of a light alkali metal (sodium) with a refractory transition metal (niobium) and nitrogen creates a dense, stiff ceramic with potential advantages in extreme-environment engineering, though industrial adoption remains limited compared to established nitride ceramics like TiN or CrN.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 130.5 | GPa | DFT | ||
| ↳ | 144.1 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.2100 | - | DFT · OptB88vdW | ||
Shear Modulus(G)2 entries | 90.85 | GPa | DFT | ||
| ↳ | 106.5 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.901 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.8920 | eV | DFT · OptB88vdW | ||
| ↳ | 1.378 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr) | 22.34 | - | DFT · OptB88vdW | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 12.45 | - | DFT · OptB88vdW | ||
| ↳ | 9.647 | - | DFT · TBmBJ | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.00271 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00391 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -269.7 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 315.7 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 33.88 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -0.8887 | 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