Articles 10 min read
Alumina (Al₂O₃): Types, Properties & Industrial Applications
Alumina (Al₂O₃) — crystalline forms (α-alumina/corundum, γ, θ, δ, κ, η), properties (hardness 9 Mohs, MP 2050°C, high thermal/electrical insulation), and applications — abrasives, refractories, electrical insulators, biomedical implants, catalyst supports, armor, wear parts. Grades: smelter, calcined, tabular, fused, reactive.
