Hf1 C1

semiconductor
· Hf1 C1

Hafnium carbide (HfC) is an ultra-high-temperature ceramic compound belonging to the refractory carbide family, characterized by exceptional hardness and thermal stability. This material is primarily used in extreme-environment applications including aerospace thermal protection systems, rocket nozzles, and cutting tools, where its resistance to oxidation and thermal shock at temperatures exceeding 3000°C makes it valuable for engineers designing components that must survive intense heat and mechanical stress. HfC is notable among refractory carbides for its superior properties compared to tungsten carbide and tantalum carbide alternatives, though its cost and difficulty in processing limit adoption to mission-critical applications where performance justifies the expense.

aerospace thermal protectionrocket engine nozzlescutting tools and wear surfaceshigh-temperature cruciblesrefractory coating applicationsextreme environment components

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
—
ksi——
Shear Modulus(G)
—
ksi——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
—
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.