Alumina (Al2O3)

Verifiedceramic
· Al2O3· Alumina· Aluminum Oxide· Corundum

Alumina (Al₂O₃) is a polycrystalline ceramic composed of aluminum and oxygen, widely recognized as one of the most versatile and commercially mature advanced ceramics. It is extensively used in applications ranging from refractory linings in high-temperature furnaces and electrical insulators to precision cutting tools, grinding media, and biomedical implants, where its combination of hardness, thermal stability, and chemical inertness provides significant advantages over metals and polymers. Engineers select alumina when they need a material that maintains strength at elevated temperatures, resists corrosion and wear, provides electrical insulation, or requires biocompatibility—making it a go-to choice across thermal processing, electronics, aerospace, and medical device industries.

refractory liningselectrical insulatorscutting tools and abrasivesbiomedical implantshigh-temperature kiln furniturespark plug ceramics

Compliance & Regulations

?ISO 10993?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Young's Modulus vs Temperature(E(T))
Curve (6 pts)
ksi——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Specific Heat vs Temperature(Cp(T))
Curve (6 pts)
BTU/(lb·°F)——
Thermal Conductivity vs Temperature(k(T))
Curve (7 pts)
BTU/(hr·ft·°F)——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

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.