Effect of alumina addition on physical and structural properties of ceramic porcelain

Abstract

Porcelain usually made up of kaolin, feldspar, silica and alumina have properties as an electrical insulator. The effect of adding different amounts of alumina into the porcelain composition has revealed the positive possibility in the production of the ceramic insulator. The different types of raw materials which are feldspar, silica, kaolin and alumina used in the production of porcelain insulator samples by varying their composition. The properties of the porcelain sample after being sinter at 900 °C were identified according to their physical and structural properties. The porcelain sample properties were investigated using XRD, XRF and density test. The presence of corundum, quartz, albite and mullite phases was believed to increase the physical and structural strength of the porcelain sample.