Hf3C

ceramic

· JVASP-38587· Hf3C

Hafnium carbide (Hf3C) is an ultra-high-temperature ceramic compound belonging to the refractory carbide family, valued for extreme thermal stability and hardness at elevated temperatures. It appears primarily in advanced aerospace and defense applications where materials must withstand extreme heat and thermal cycling, such as rocket nozzles, hypersonic vehicle leading edges, and thermal protection systems. Hafnium carbide is notable among refractory ceramics for its combination of melting point and oxidation resistance, making it a candidate material for next-generation propulsion and re-entry systems where conventional ceramics fail.

hypersonic thermal protectionrocket nozzles and combustion chambersrefractory coatingsextreme temperature aerospacecutting tool inserts

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4740	lb/in³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—
Seebeck Coefficient(S)	-4.053	µV/K	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	1.299	eV/atom	—
Formation Energy(ΔHf)	0.7740	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.

Hf3C

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental