HfAlNi2 is a ternary intermetallic compound combining hafnium, aluminum, and nickel, representing a high-performance metallic system studied for structural and functional applications requiring elevated-temperature stability and mechanical resilience. This material belongs to the family of refractory metal intermetallics and is primarily investigated in research and development contexts for aerospace, power generation, and high-temperature engineering environments where conventional superalloys reach their performance limits. The hafnium-aluminum-nickel system is valued for its potential to combine the oxidation resistance of aluminum-bearing phases with the structural integrity of nickel-base matrices, along with hafnium's contribution to refractory strength and creep resistance.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 164.5 | GPa | — | ||
| ↳ | 161.1 | GPa | — | ||
Poisson's Ratio(ν) | 0.4100 | - | — | ||
Shear Modulus(G)2 entries | 48.86 | GPa | — | ||
| ↳ | 31.06 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 9.519 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | 0.8600 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.6032 | eV/atom | — | ||
| ↳ | -0.6566 | eV/atom | — |