Hf1 Al1 Fe2

semiconductor

· Hf1 Al1 Fe2

HfAlFe (hafnium-aluminum-iron) is an intermetallic compound belonging to the refractory metal alloy family, designed for high-temperature structural applications where thermal stability and stiffness are critical. This material is primarily investigated in research and advanced aerospace contexts for potential use in extreme-temperature environments, competing with established nickel-based superalloys and other refractory compounds by offering the hardness and density characteristics of hafnium combined with the lightweight benefits of aluminum. The hafnium content makes this compound particularly notable for applications requiring neutron absorption or superior oxidation resistance at elevated temperatures.

high-temperature aerospace structuresrefractory applicationsadvanced research compoundsnuclear-adjacent shieldingturbine engine componentsextreme-environment materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	175.2	GPa	—
Shear Modulus(G)	92.76	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.02050	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4180	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.

Hf1 Al1 Fe2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control