HIr3

ceramic

· JVASP-129221· HIr3

HIr3 is a ceramic composite or intermetallic compound based on hafnium and iridium, representing a high-temperature materials system designed for extreme thermal and mechanical environments. This material family is primarily explored for aerospace and nuclear applications where exceptional hardness, refractory properties, and resistance to oxidation are required at temperatures exceeding the capabilities of conventional superalloys. The hafnium-iridium system offers potential advantages in ultra-high-temperature structural applications, though it remains largely in the research or specialized manufacturing phase compared to more established ceramic and metallic alternatives.

high-temperature turbine componentsaerospace engine applicationsnuclear reactor materialsrefractory coatingsextreme environment testing

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.6493	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.9469	eV/atom	—
Formation Energy(ΔHf)	0.9466	eV/atom	—

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

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.

HIr3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental