The crystallization behavior of a luster glaze containing ceria has been investigated. When glazed specimens were sintered at 1100℃, crystalline ceria particles were precipitated preferentially with (100) planes parallel to the specimen surface with the size of around 200 nm. The particle population in the surface region was much higher than inside glaze, coveringover 60% of the specimen surface area. Crystallization of the particles with preferred orientation was promoted, after the removal of internal interface through complete melting of the frit particles. The luster effect seems to result from CeO2 particles of high refractive index, their strong light scattering at visible range due to fine crystalline size 200 nm and their planar arrangement in the surface region.
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