Al3Ni5

metal
· Al3Ni5

Al₃Ni₅ is an intermetallic compound in the aluminum-nickel system, characterized by an ordered crystalline structure that imparts high stiffness and moderate density. This material is primarily of research and specialized industrial interest rather than a commodity alloy, valued in aerospace and high-temperature applications where its rigid crystal structure and chemical stability offer advantages over conventional aluminum alloys or nickel-based superalloys in specific niches. Engineers consider Al₃Ni₅ when designing lightweight structures requiring superior elastic properties and thermal stability, though processing challenges and brittleness typical of intermetallics limit its adoption compared to age-hardened aluminum alloys or established nickel superalloys.

aerospace structural reinforcementhigh-stiffness lightweight componentsintermetallic research applicationsthermal-resistant coatings or compositesspecialty casting and powder metallurgymatrix reinforcement phase in composites

Compliance & Regulations

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