著者

福原 実 藤原 峰一 山口 一格 土井 章

出版者

公益社団法人日本セラミックス協会

雑誌

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi (ISSN:18821022)

巻号頁・発行日

vol.97, no.1131, pp.1420-1423, 1989-11-01

被引用文献数

4 4

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The formation of Hidasuki, a characteristic red-colored pattern on the surface of Bizen-yaki, was investigated from the viemponats of its mineral composition and coloration. Hematite, corundum and quartz were found in Hidasuki. Corundum was formed regardless of the cooling rate after heat treatment of a mixture of Bizen-clay and 8 to 10 wt% potassium chloride at 1300℃ for 3 h. Hematite was not formed when the mixture was quenched. However, the amount of hexagonal plate like hematite in the heated mixture increased with the lowering of the cooling rate, and the color of the heated mixture became more reddish with the increase of the amount of hematite. The same phase composition, coloration and morphology as those of Hidasuki were obtained when a mixture of Bizen-clay and 8 to 10 wt% potassium chloride was heated at 1300℃ for 3 h followed by cooling at the rate of 0.2 to 0.5℃/min in air.