Al9Co2

metal
· Al9Co2

Al9Co2 is an intermetallic compound in the aluminum-cobalt system, representing a ordered phase that forms at specific composition and temperature conditions. This material belongs to the family of lightweight intermetallics that combine aluminum's low density with cobalt's high-temperature stability and hardness, making it potentially relevant for applications demanding elevated-temperature strength and wear resistance.

high-temperature structural reinforcementwear-resistant coatingsaerospace composite phasesresearch metallurgylightweight refractory applicationsintermetallic matrix composites

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)3 entries
106.1
GPa
106.1
GPa
101.1
GPa
Elastic Compliance Tensor(Sij)
Matrix (redacted)
1/GPa
Elastic Anisotropy(AU)
0.1338
-
Elastic Stiffness Tensor(Cij)
Matrix (redacted)
Pa
Poisson's Ratio(ν)2 entries
0.2175
-
0.2100
-
Shear Modulus(G)3 entries
73.86
GPa
73.86
GPa
72.00
GPa
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)
3.569
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
0.000
eV
0.000
eV
Magnetic Moment(μB)
0.000
µB
Seebeck Coefficient(S)
-8.470
µV/K
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
Energy Above Hull(ΔEhull)
0.000
eV/atom
Formation Energy(ΔHf)
-0.3519
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.