Hf2ReIr — Properties & Data | MatWorld

Hf2ReIr

ceramic

· JVASP-41816· Hf2ReIr

Hf₂ReIr is a refractory ceramic intermetallic compound combining hafnium, rhenium, and iridium—three elements prized for extreme-temperature stability and oxidation resistance. This is a research-stage material primarily investigated for ultra-high-temperature structural applications where conventional superalloys approach their limits; the combination of refractory metals creates a system with potential for hypersonic vehicles, advanced rocket engines, and next-generation power generation systems where service temperatures exceed 1500°C.

hypersonic vehicle structuresrocket engine componentsultra-high-temperature coatingsadvanced aerospace propulsionthermal protection systemshigh-temperature research materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.6328	lb/in³	DFT · OptB88vdW

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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	0.0000657	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00000115	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-6.650	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.8800	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.7933	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

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.

Hf2ReIr

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental