Hf1 B2

semiconductor
· Hf1 B2

HfB2 (hafnium diboride) is an ultra-high-temperature ceramic compound belonging to the transition metal diboride family, characterized by exceptional thermal stability and hardness. This material is primarily investigated for aerospace and defense applications requiring extreme temperature resistance, such as hypersonic vehicle leading edges, rocket nozzles, and thermal protection systems, where it outperforms conventional ceramics by maintaining structural integrity above 3000°C. HfB2 remains largely in the research and development phase for most applications due to processing challenges and cost, but represents a critical advancement for next-generation high-temperature engineering where conventional materials fail.

hypersonic vehicle protectionrocket nozzles and thrust chambersthermal protection systemscutting tools and wear surfacesaerospace leading edgesultra-high-temperature research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
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Pa——
Shear Modulus(G)
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Pa——
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.