What is alumina？
Alumina is produced by sintering a tightly packed powder of alumina, including some binder materials. Commercially available grades range from 90% to 99.95%, with higher purity producing slightly higher hardness. It is possible to process alumina by diamond grinding technology. Polishing is also possible, depending on the size of the alumina particles and the production process, either extrusion or extrusion. The purity of alumina produced by global ceramics company ranges from 74% to 99.96%. These high-purity alumina are the main materials in industry, which are suitable for occasions requiring electrical isolation, wear resistance, high temperature resistance and good mechanical strength.