YbHfIr2 — Properties & Data | MatWorld

YbHfIr2

ceramic

· JVASP-39734· YbHfIr2

YbHfIr2 is an intermetallic ceramic compound combining ytterbium, hafnium, and iridium, representing a research-phase material in the high-entropy and rare-earth intermetallic family. This material is investigated primarily for extreme-environment applications where conventional ceramics and superalloys reach performance limits, with potential interest in aerospace propulsion, nuclear systems, and thermal protection due to the refractory nature of hafnium and the thermal stability contributions of rare-earth elements. As an experimental composition, YbHfIr2 remains largely confined to materials research and is not yet established in high-volume industrial production, making it relevant for engineers exploring next-generation solutions for ultra-high-temperature or demanding chemical environments rather than for near-term design decisions.

high-temperature structural applicationsaerospace propulsion researchthermal barrier coatings (exploratory)nuclear fuel cladding (potential)refractory intermetallicsexperimental high-entropy materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	17.18	kg/m³	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	0.000794	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000300	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-16.13	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-9.930	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)	-0.8714	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.

YbHfIr2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental