K4YBe — Properties & Data | MatWorld

K4YBe

ceramic

· JVASP-70939· K4YBe

K4YBe is a ceramic compound in the yttrium-beryllium oxide family, likely a mixed rare-earth ceramic with potential applications in high-temperature and specialized optical/thermal contexts. This material appears to be primarily in research or development phases rather than established commodity production, positioning it within the broader family of rare-earth ceramics that balance thermal stability with low density. Engineers would consider this material where lightweight, high-temperature ceramic performance or specialized optical properties are critical and conventional oxides fall short.

High-temperature ceramicsLightweight structural applicationsOptical/laser host materialsThermal management componentsResearch/development phase materialAerospace thermal protection

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.05578	lb/in³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.8978	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.8921	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

K4YBe

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental