【摘 要】
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A kind of enhancing mechanism of structural whiteness dependence on amorphous photonic crystal (APC) structure is introduced in this paper.In the glaze system c
【机 构】
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School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333001, China;
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A kind of enhancing mechanism of structural whiteness dependence on amorphous photonic crystal (APC) structure is introduced in this paper.In the glaze system composed of albite,kaolin,talc,calcite,quartz,titanium dioxide and zinc oxide,the APC structure will be produced by using quartz as a variable to induce the phase separation.Under different polarities between Ti,Zn etc.and Si ion,the separated spheres with the core-shell structure can be obtained and then make up opal-like APCs in the glaze layer.In addition to inner and outer layers of core-shell spheres,the calculated results of refractive indices clearly show the great difference between the particles and the matrix.As a result of different refractive indices,the multiple scatting of visible light plays a key role in the structural whiteness.However,due to the decrease of the cationic content,APCs with the reverse opal structure would be formed in the interface between glaze and body.Ultimately,the glaze appearance reveals extremely high structural whiteness due to the special APC structure.
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