XIA Guanghua, MIAO Songlan, XU Naipin, ZHOU Jian
(Jingdezhen Ceramic Institute)
Abstract: The microstructure between body and'glaze are studied by steromicroscope and polarizing microscope in this paper and some properties are tested. The combination of isostatic pressing exchnology with the facts of production, mechanism of forming needle hole on glaze surface is toplored. Through analysis, high porosity in biscuit body formed by isostatic pressing is an important factor which resulted in needle hole on glaze surface. Ways of improving the quality of glaze and reducing the needle hole are found in further experiments.
Keywords: isostatic pressing, glaze, needle hole, microstructure, biscuit body