HfAlCu2
metal· HfAlCu2
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.
experimental refractory alloyshigh-temperature aerospace structuresintermetallic compounds researchthermal management systemsadvanced structural compositesmaterials development and characterization
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| 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 | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.3334 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -5.530 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.3366 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.