Hf2 Ir1 Ru1

semiconductor

· Hf2 Ir1 Ru1

Hf₂Ir₁Ru₁ is a high-entropy refractory metal alloy combining hafnium, iridium, and ruthenium—three elements with exceptionally high melting points and strong corrosion resistance. This is an experimental research compound rather than an established commercial alloy; it belongs to the family of refractory high-entropy alloys (HEAs) being developed for extreme-temperature structural applications where conventional superalloys reach their limits. The combination of these three transition metals is motivated by the potential for simultaneously achieving high hardness, thermal stability, and oxidation resistance in applications requiring materials that maintain strength above 1200°C.

extreme-temperature structural applicationsaerospace propulsion systems (research phase)refractory coatings and protective layershigh-entropy alloy developmentnuclear or hypersonic vehicle applications (experimental)wear-resistant tool materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00130	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.8750	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

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.

Hf2 Ir1 Ru1

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control