Be4 O4

ceramic

· Be4 O4

Beryllium oxide (BeO) is an advanced ceramic compound known for exceptional thermal conductivity combined with electrical insulation properties, making it distinctly different from most ceramic materials. It is primarily used in high-reliability electronic applications, aerospace thermal management systems, and nuclear reactor components where simultaneous demands for heat dissipation and electrical isolation are critical. BeO is valued in these specialized sectors despite limited adoption compared to alternatives, due to its unique property combination and superior performance in extreme thermal environments, though its toxicity requires careful handling protocols during manufacturing and machining.

electronic thermal managementsemiconductor substratesaerospace heat dissipationnuclear reactor insulationhigh-power RF/microwave devicesthermal insulators for extreme environments

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	205.8	GPa	—
Shear Modulus(G)	134.1	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	7.605	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.014	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.

Be4 O4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental