Al3Ni5 — Properties & Data | MatWorld

Al3Ni5

Name: Al3Ni5
Brand: MatWorld

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	167.2	GPa	DFT
↳	166.3	GPa	DFT · OptB88vdW
↳	167.2	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	1.357	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3100	-	DFT · OptB88vdW
↳	0.3055	-	DFT · PBE
Shear Modulus(G)3 entries	74.74	GPa	DFT
↳	78.42	GPa	DFT · OptB88vdW
↳	74.74	GPa	DFT · PBE

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	6.615	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00388	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00389	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-35.35	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-35.65	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5750	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

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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.

Al3Ni5

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Physical Properties

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