HfAlPt — Properties & Data | MatWorld

HfAlPt

metal

· HfAlPt

HfAlPt is a ternary intermetallic compound combining hafnium, aluminum, and platinum—three elements known for high-temperature stability and corrosion resistance. This material belongs to the family of refractory metal alloys and represents primarily research-phase development, investigated for applications requiring exceptional thermal stability, mechanical properties at elevated temperatures, and resistance to oxidation. The combination of a refractory metal (Hf), a lightweight element (Al), and a noble metal (Pt) positions this alloy as a candidate for next-generation high-temperature structural applications where traditional superalloys or ceramic composites may fall short.

high-temperature structural applicationsaerospace propulsion systemsrefractory coatings and intermetallicsoxidation-resistant alloysresearch and development materialsthermal barrier system components

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

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	163.3	GPa	DFT
↳	163.3	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.4168	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)	0.2997	-	DFT · PBE
Shear Modulus(G)2 entries	75.52	GPa	DFT
↳	75.52	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.

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Property	Value	Unit	Conditions	Source
Density(ρ)	12.62	kg/m³	DFT · OptB88vdW

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

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.059	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

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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.

HfAlPt

Mechanical Properties

Physical Properties

Electrical Properties

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