HfAlCu2 is a hafnium-aluminum-copper intermetallic compound that belongs to the family of refractory metal alloys. This material combines the high-temperature stability of hafnium with the structural benefits of aluminum and copper, resulting in a dense metallic phase with significant stiffness. While HfAlCu2 remains primarily in the research and development phase, materials in this compositional family are investigated for aerospace and high-temperature structural applications where conventional superalloys reach their performance limits, as well as for potential use in electronic or thermal management systems where refractory metals are critical.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 19,538.3 | ksi | — | ||
| ↳ | 19,538.3 | ksi | — | ||
| ↳ | 19,584.4 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.7070 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.3262 | - | — | ||
| ↳ | 0.3500 | - | — | ||
Shear Modulus(G)3 entries | 7,679.1 | ksi | — | ||
| ↳ | 7,679.1 | ksi | — | ||
| ↳ | 7,365 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.3334 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -5.530 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.3366 | eV/atom | — |