Effects of perlite addition on the structure of hard porcelain glaze

Abstract

This investigation is reported the effects of perlite addition on the properties of hard porcelain glazes. Five compositions were prepared containing 10, 25, 50, and 90% perlite addition. The glaze compositions were formulated using the Seger method and prepared by conventional porcelain processing. Chemical and microstructural characterization of materials prepared from representative samples were carried out using X-ray fluorescence (XRF), X-ray diffraction (XRD), and scanning electron microscopy (SEM) techniques, respectively. The melting test, color measurement test, thermal shock resistance test (Harkort test), autoclave test, and chemical resistance tests were done to all of the glazed samples. As a result of this study, it has been shown that addition of 10% perlite mineral can be utilized as an alternative fluxing raw material for production of the hard porcelain glaze.