- Alumina (Al₂O₃) – A Versatile Basic Material
Application Background: Electronic substrates, sockets, spark plugs; mechanical cutting tools, grinding wheels, bearings; medical artificial joints, dental implants; and transparent tubes for high-pressure sodium lamps, etc
- High-temperature capability— operates reliably up to 1730°C (99.7%)
- Excellent electrical insulation— volume resistivity >10¹⁴ Ω·cm
- Superior chemical resistance — inert to acids, alkalis, and molten salts
- Exceptional hardness — Mohs 9, second only to diamond and SiC
- Best cost-effectiveness — low cost with a mature supply chain
