HfSi2Ir2

ceramic

· JVASP-156034· HfSi2Ir2

HfSi₂Ir₂ is a ternary intermetallic ceramic compound combining hafnium, silicon, and iridium. This material belongs to the family of refractory metal silicides and represents a research-phase composition investigated for ultra-high-temperature structural applications where exceptional thermal stability and oxidation resistance are critical. While not yet widely adopted in production, materials in this class are pursued for aerospace propulsion systems, advanced thermal protection, and extreme-environment components where conventional superalloys reach their limits.

refractory compositeshypersonic vehicle structureshigh-temperature coatingsaerospace propulsion researchthermal protection systemsexperimental ultra-high-temperature applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	13.10	kg/m³	—

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)	0.000	eV/atom	—
Formation Energy(ΔHf)	-0.7611	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.

HfSi2Ir2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental