Al2 O3

ceramic

· Al2 O3

Aluminum oxide (Al₂O₃), commonly known as alumina, is a ceramic compound that is one of the most widely used technical ceramics in engineering. It is valued for its combination of hardness, chemical inertness, electrical insulation, and thermal stability, making it a workhorse material across multiple industries where metal or polymer alternatives cannot meet demands for wear resistance, high-temperature performance, or electrical properties.

grinding wheels and abrasiveselectrical insulators and substratesrefractory brick and kiln liningscutting tool insertswear-resistant armor and protective coatingsbiomedical implants

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	4.499	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.217	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.

Al2 O3

Electrical Properties

Other Properties

Regulatory Screening

Environmental