Hf5 Sc1

semiconductor

· Hf5 Sc1

Hf5Sc1 is an experimental intermetallic compound combining hafnium and scandium, belonging to the high-entropy or refractory metal alloy family. This material is primarily of research interest for ultra-high-temperature applications where conventional superalloys reach their limits, with potential use in aerospace propulsion systems, nuclear reactors, and advanced thermal protection systems. The addition of scandium to hafnium-based systems is explored to modify phase stability, oxidation resistance, and mechanical performance at extreme temperatures—making it notable for engineers evaluating next-generation materials beyond current Ni-based and Ti-based superalloys.

aerospace propulsion systemshigh-temperature structural applicationsnuclear reactor componentsthermal barrier coatingsrefractory metal researchextreme environment materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00600	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.01800	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.

Hf5 Sc1

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control