IrI2

ceramic

· JVASP-136864· IrI2

IrI₂ is an iridium-based ceramic compound that belongs to the family of transition metal iridides. While not a widely commercialized engineering material, it represents a research-stage ceramic of interest for extreme-environment applications due to iridium's exceptional chemical stability, high melting point, and resistance to oxidation and corrosion. Engineers consider iridium compounds primarily for specialized aerospace, chemical processing, and high-temperature catalytic applications where conventional ceramics or metals reach their operational limits.

high-temperature structural applicationsoxidation-resistant coatingscatalytic reactor componentsaerospace engine componentschemical processing vesselsresearch and development materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	6,072.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3200	-	DFT · OptB88vdW
Shear Modulus(G)	2,381.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3079	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	DFT · OptB88vdW
↳	eV	DFT · TBmBJ
Magnetic Moment(μB)	µB	DFT · OptB88vdW

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)	0.3387	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.2186	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.

IrI2 — Properties & Data | MatWorld

IrI2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental