YCrB4

metal

· YCrB4

YCrB₄ is a yttrium chromium boride ceramic compound belonging to the family of transition metal borides, which are known for exceptional hardness and thermal stability. This material is primarily of research and developmental interest for ultra-high-temperature applications, cutting tools, and wear-resistant coatings where conventional ceramics reach their performance limits. YCrB₄ combines boride hardness with yttrium's ability to improve oxidation resistance and fracture toughness, making it a candidate material for next-generation aerospace and industrial applications operating above 1500 °C.

ultra-high-temperature ceramicsadvanced cutting toolswear-resistant coatingsaerospace engine componentsthermal barrier applicationsrefractory materials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1883	lb/in³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)	0.2630	eV	—
Dielectric Constant (Relative Permittivity)(εr)	41.13 range 38.50–43.75median of 2 measurements	-	—
Magnetic Moment(μB)	0.000	µB	—
Seebeck Coefficient(S)	-155	µV/K	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	—
Formation Energy(ΔHf)	-0.6848	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.

YCrB4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control