Hf4 Al8

semiconductor

· Hf4 Al8

Hf4Al8 is an intermetallic compound combining hafnium and aluminum, belonging to the refractory metal alloy family with potential for high-temperature structural applications. This material is primarily of research and development interest rather than established industrial production, being investigated for aerospace and high-heat environments where conventional superalloys reach their limits. The hafnium-aluminum system is notable for exploring damage tolerance and thermal stability in extreme conditions, though commercial adoption remains limited compared to nickel-based or titanium-based alternatives.

experimental refractory compoundshigh-temperature aerospace researchultra-high-temperature structural applicationsintermetallic phase studiesthermal barrier system componentsadvanced propulsion research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00460	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4310	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.

Hf4 Al8

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control