Alumina for polishing introduction

Alumina has a variety of crystal forms, and more than 10 kinds have been discovered, among which the common ones are α, β, γ and so on. Among them, α-Al2O3 is white crystal with rhombohedral hexahedron shape, corundum structure, and high temperature stable crystal form. It has the characteristics of low specific surface, compact structure, and low activity. It is the most stable crystal form among homogeneous crystals. Good electromechanical performance. The alumina abrasive used in chemical mechanical polishing often chooses nano α-Al2O3 that has high hardness, stable performance, insoluble in water, and insoluble in acid and alkali.