Hf2 Re1 Ir1

semiconductor

· Hf2 Re1 Ir1

Hf₂Re₁Ir₁ is an experimental refractory intermetallic compound combining hafnium, rhenium, and iridium—three elements prized for extreme-temperature stability and oxidation resistance. This material belongs to the family of high-entropy and multi-principal-element alloys (MPEAs) being investigated for next-generation aerospace and energy applications where conventional superalloys reach their thermal limits. The combination targets ultra-high-temperature environments (>1600°C) where rhenium and iridium provide creep resistance and thermal fatigue tolerance, while hafnium contributes oxidation protection through selective oxide formation.

hypersonic aircraft structuresrocket engine nozzlesadvanced gas turbine bladesnuclear thermal propulsionmaterials research—refractory systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.02510	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7930	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 Re1 Ir1

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control