HfCo2
metal· HfCo2
HfCo2 is an intermetallic compound combining hafnium and cobalt, belonging to the Laves phase family of metallic materials known for high hardness and thermal stability. This material is primarily of research interest for high-temperature structural applications, where its hafnium content provides exceptional refractory properties and oxidation resistance. Engineers consider HfCo2 and related hafnium intermetallics for extreme environments—aerospace engines, nuclear systems, and advanced manufacturing—where conventional superalloys reach their limits, though commercial adoption remains limited compared to established alternatives.
high-temperature aerospace componentsrefractory metal applicationsnuclear reactor materialsoxidation-resistant coatingsresearch/experimental intermetallicsextreme environment engineering
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 22,696.8 | ksi | — | ||
| ↳ | 22,696.8 | ksi | — | ||
| ↳ | 29,563 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.02743 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2954 | - | — | ||
| ↳ | 0.3100 | - | — | ||
Shear Modulus(G)3 entries | 10,752.2 | ksi | — | ||
| ↳ | 10,752.2 | ksi | — | ||
| ↳ | 13,099.8 | 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) | 0.4447 | 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) | -26.74 | 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)2 entries | -0.4084 | eV/atom | — | ||
| ↳ | -0.4025 | eV/atom | — |
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
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.