LaReB

ceramic

· LaReB

LaReB is a lanthanum rhenium boride ceramic compound, part of the refractory boride family known for exceptional hardness and thermal stability at elevated temperatures. This material is primarily of research and developmental interest for ultra-high-temperature applications where conventional ceramics and superalloys reach their limits, with potential use in aerospace propulsion, hypersonic vehicle structures, and extreme-environment tooling where thermal shock resistance and chemical inertness are critical.

hypersonic vehicle componentsrocket nozzles and combustion chambershigh-temperature cutting toolsrefractory crucibles and furnace liningsaerospace thermal protection systemsresearch/advanced propulsion systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3494	lb/in³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	—
↳	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—
Seebeck Coefficient(S)	-8.890	µV/K	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	1.333	eV/atom	—
Formation Energy(ΔHf)	1.106	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.

LaReB

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental