Hf5Al3 — Properties & Data | MatWorld

Hf5Al3

metal

· Hf5Al3

Hf5Al3 is an intermetallic compound combining hafnium and aluminum, representing a hard ceramic-like metal phase that forms in hafnium-aluminum systems. This material is primarily of research and development interest rather than established commercial production, with potential applications in high-temperature structural applications where the combination of hafnium's refractory properties and aluminum's lightweight characteristics could offer advantages. The material's primary appeal lies in aerospace and defense sectors exploring next-generation materials for extreme thermal environments and high-strength components.

aerospace structural componentshigh-temperature applicationsresearch phase materialsrefractory alloysadvanced defense systems

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	111.0	GPa	DFT
↳	111.0	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.1345	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)	0.3128	-	DFT · PBE
Shear Modulus(G)2 entries	47.48	GPa	DFT
↳	47.48	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)	10.02	kg/m³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.05490	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2820	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.

Hf5Al3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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