NpAl3 is an intermetallic compound in the neptunium-aluminum system, belonging to a family of actinide-based metallic materials primarily explored in nuclear materials science and fundamental research. This compound and related neptunium intermetallics are investigated for understanding phase relationships, structural stability, and physical properties of actinide metals rather than for mainstream engineering applications. Engineers and materials researchers encounter NpAl3 in specialized nuclear research contexts, where characterizing actinide metallurgy informs fundamental nuclear fuel behavior, advanced reactor designs, and materials compatibility studies in extreme nuclear environments.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 81.90 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.1800 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 67.80 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.775 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | DFT · OptB88vdW | ||
Magnetic Moment(μB) | 3.965 | µB | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.000515 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.000527 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | 18.67 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 18.84 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -0.2020 | 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