Hf5Ga3

ceramic

· JVASP-23777· Hf5Ga3

Hf5Ga3 is an intermetallic ceramic compound combining hafnium and gallium, belonging to the family of refractory intermetallics being investigated for extreme-temperature structural applications. This material is primarily of research and development interest rather than established production use, with potential applications in aerospace and high-temperature engineering where conventional superalloys reach their thermal limits. Its appeal lies in the hafnium backbone—known for exceptional refractory properties—combined with gallium's role in forming ordered crystal structures that could offer improved damage tolerance and oxidation resistance compared to monolithic ceramics.

hypersonic vehicle structuresadvanced turbine componentsrefractory coatingshigh-temperature composite reinforcementaerospace research applicationsextreme-environment thermal protection

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4240	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Seebeck Coefficient(S)	8.893	µV/K	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	—
Formation Energy(ΔHf)	-0.4216	eV/atom	—

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

Regulatory Screening

Environmental

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.

Hf5Ga3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental