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首页> 外文期刊>Journal of Advanced Ceramics >Substitution of a fraction of zircon by cristobalite in nano hematite encapsulated pigment and examination of glaze application
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Substitution of a fraction of zircon by cristobalite in nano hematite encapsulated pigment and examination of glaze application

机译：纳米赤铁矿包封的颜料中的方石英替代一部分锆石和釉料的应用

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摘要

Hematite pigment has a long history, but it cannot be used for ceramic application, because it must be thermally and chemically stable at high firing temperature when using a pigment in a glaze or ceramic body. Recently, through encapsulated systems, a new pigment with suitable thermal and chemical stability can be obtained by encapsulating hematite crystals into selected silica or zircon matrices. It means that nano-sized red hematite has been encapsulated into the protected phases. Transmission electron micrographs of hematite encapsulated into silica and zircon matrices by sol-gel method show spherical single crystals with diameter of about 5–10 nm. In order to optimize ceramic glaze formulations for application of the synthesized red inorganic nanocomposite inclusion pigment by sol-gel method, four different types of glazes (i.e., alkalis, borate, earth alkalis, and leaded glazes) have been tested. The results show that the substitution of a fraction of zircon by cristobalite in hematite-zircon pigment produces acceptable stability with red hue.
机译：赤铁颜料具有悠久的历史，但不能用于陶瓷应用，因为在釉料或陶瓷体中使用颜料时，它必须在高温下具有良好的热和化学稳定性。最近，通过封装系统，可以通过将赤铁矿晶体封装到选定的二氧化硅或锆石基质中来获得具有合适的热和化学稳定性的新型颜料。这意味着纳米红色赤铁矿已被封装到保护相中。通过溶胶-凝胶法将赤铁矿包封在二氧化硅和锆石基质中的透射电子显微照片显示出直径约5-10 nm的球形单晶。为了优化陶瓷釉配方以通过溶胶-凝胶法应用合成的红色无机纳米复合包合物颜料，已经测试了四种不同类型的釉（即，碱，硼酸盐，碱土和铅釉）。结果表明，赤铁矿-锆石颜料中的方石英替代一部分锆石可产生可接受的红色调稳定性。

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