Al2 Hf4

semiconductor

· Al2 Hf4

Al2Hf4 is an intermetallic compound combining aluminum and hafnium, belonging to the family of refractory intermetallics under investigation for high-temperature structural applications. This material represents experimental research into hafnium-aluminum systems, which are being explored for aerospace and thermal management contexts where extreme temperature stability and low density are critical. Compared to conventional superalloys and ceramics, hafnium-aluminum intermetallics offer potential advantages in specific stiffness and oxidation resistance, though industrial deployment remains limited pending further development of processing routes and property optimization.

aerospace engine componentshigh-temperature oxidation barriersrefractory structural researchthermal protection systemslightweight high-temperature alloysexperimental propulsion systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000800	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2550	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.

Al2 Hf4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control