LiHfIr2

ceramic

· JVASP-41924· LiHfIr2

LiHfIr₂ is a ternary intermetallic ceramic compound combining lithium, hafnium, and iridium—a research-phase material rather than an established commercial ceramic. This compound family is of interest for ultra-high-temperature applications and advanced functional materials, where the combination of refractory metals (hafnium and iridium) with lithium may offer unique thermal stability, electrical, or catalytic properties. While not yet widely deployed in production engineering, materials in this compositional space are explored for next-generation aerospace, energy, and materials chemistry applications where extreme conditions or novel functional behavior justify experimental qualification.

Advanced ceramics researchUltra-high-temperature applicationsRefractory intermetallicsAerospace/hypersonics (developmental)Functional materials/catalysis (exploratory)Materials chemistry research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.5602	lb/in³	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	0.000202	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000174	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	4.490	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	4.160	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)	-0.7622	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.

LiHfIr2 — Properties & Data | MatWorld

LiHfIr2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental