B4 Nb3

semiconductor

· B4 Nb3

B₄Nb₃ is a hard ceramic compound belonging to the boron-niobium system, combining boron's hardness with niobium's refractory properties. This material is primarily of research and developmental interest for high-temperature structural applications, with potential use in aerospace and extreme-environment contexts where conventional ceramics or metals reach performance limits. Its notable stiffness and hardness characteristics make it relevant for wear-resistant coatings and composite reinforcement phases, though industrial adoption remains limited compared to established ceramics like silicon carbide or alumina.

high-temperature coatingsceramic compositeswear-resistant materialsaerospace researchrefractory applicationsadvanced ceramics development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	39,518	ksi	—
Shear Modulus(G)	28,270.8	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00170	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7190	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.

B4 Nb3

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control