Al₃Ni₅ is an intermetallic compound in the aluminum-nickel system, characterized by an ordered crystalline structure that imparts high stiffness and moderate density. This material is primarily of research and specialized industrial interest rather than a commodity alloy, valued in aerospace and high-temperature applications where its rigid crystal structure and chemical stability offer advantages over conventional aluminum alloys or nickel-based superalloys in specific niches. Engineers consider Al₃Ni₅ when designing lightweight structures requiring superior elastic properties and thermal stability, though processing challenges and brittleness typical of intermetallics limit its adoption compared to age-hardened aluminum alloys or established nickel superalloys.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 24,248.3 | ksi | — | ||
| ↳ | 24,248.3 | ksi | — | ||
| ↳ | 24,115.4 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 1.357 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.3055 | - | — | ||
| ↳ | 0.3100 | - | — | ||
Shear Modulus(G)3 entries | 10,840.1 | ksi | — | ||
| ↳ | 10,840.1 | ksi | — | ||
| ↳ | 11,373.9 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2390 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -35.35 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.5750 | eV/atom | — |