TmHfIr2 — Properties & Data | MatWorld

TmHfIr2

ceramic

· JVASP-37554· TmHfIr2

TmHfIr2 is a ternary intermetallic ceramic compound combining thulium, hafnium, and iridium—a research-stage material belonging to the family of high-entropy and refractory intermetallics. This material is not yet established in mainstream industrial production but represents exploration into ultra-high-temperature ceramics and advanced structural compounds where extreme thermal stability, chemical inertness, and mechanical integrity are required. Engineers would consider this class of material for next-generation applications in aerospace propulsion, nuclear environments, or extreme-service applications where conventional ceramics and superalloys reach their limits.

high-temperature structural applicationsrefractory materials researchaerospace propulsion componentsnuclear or extreme-service environmentsadvanced intermetallic compositesexperimental/developmental use

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	177.4	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.5000	-	DFT · OptB88vdW
Shear Modulus(G)	30.60	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	16.57	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00214	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00230	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-16.25	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-16.90	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.04120	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.9776	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.

TmHfIr2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental