HfAlCo2

metal
· HfAlCo2

HfAlCo2 is a ternary intermetallic compound combining hafnium, aluminum, and cobalt, representing an emerging class of high-entropy and multi-principal-element alloys. This material family is primarily under active research and development for high-temperature structural applications where conventional superalloys reach their limits, with potential applications in aerospace propulsion systems, power generation, and advanced thermal management. Engineers would consider HfAlCo2-type compositions for their potential to combine refractory metal strength (from hafnium) with improved formability and oxidation resistance compared to single-phase refractory metals, though current use remains largely in laboratory and prototype development rather than production.

refractory metal alloyshigh-temperature engine componentsaerospace materials researchintermetallic compoundsnext-generation turbine applicationsstructural materials development

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)3 entries
24,997.3
ksi—
↳
24,997.3
ksi—
↳
20,012.3
ksi—
Elastic Compliance Tensor(Sij)
Matrix (redacted)
1/GPa—
Elastic Anisotropy(AU)
0.05274
-—
Elastic Stiffness Tensor(Cij)
Matrix (redacted)
ksi—
Poisson's Ratio(ν)2 entries
0.2800
-—
↳
0.3700
-—
Shear Modulus(G)3 entries
12,892.6
ksi—
↳
12,892.6
ksi—
↳
7,430.3
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
PropertyValueUnitConditionsSource
Density(ρ)
0.3558
lb/in³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Magnetic Moment(μB)
0.8190
µB—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom—
Formation Energy(ΔHf)
-0.5985
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.