CrRe5B2

metal

· JVASP-107567· CrRe5B2

CrRe5B2 is a chromium-rhenium boride intermetallic compound that combines refractory metal constituents with ceramic-like boride bonding to create an extremely dense, hard material. This is primarily a research-phase compound studied for high-temperature structural applications where conventional superalloys reach their thermal limits. The material belongs to the ultra-high-temperature materials family and is notable for its potential to enable engine components and aerospace structures operating in extreme environments, though industrial adoption remains limited due to brittleness concerns and processing challenges typical of boride systems.

ultra-high-temperature applicationsaerospace engine componentsrefractory systems researchhigh-performance compositesthermal barrier coatings (research phase)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.6147	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00920	eV/atom	—
Formation Energy(ΔHf)	-0.1849	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.

CrRe5B2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control