ReB2

ceramic

· ReB2

ReB2 is a rhenium diboride ceramic compound that belongs to the family of transition metal borides, known for their exceptional hardness and high-temperature stability. This material is primarily of research and specialized industrial interest for extreme-environment applications where conventional ceramics or metals reach their performance limits. ReB2 is valued in cutting tools, wear-resistant coatings, and high-temperature structural applications where its combination of hardness and thermal stability offers advantages over more common alternatives like tungsten carbide or alumina.

cutting tools and drill bitshigh-temperature wear resistanceaerospace and hypersonic applicationshard coatingsrefractory materialsextreme-environment tooling

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2228	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.

ReB2

Other Properties

Regulatory Screening

Environmental