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@Study of Improvement in Plasticity of Porcelain Clay
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@Naoya SASAKI
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@The morphology of very fine particles (2ƒÊm) contained in Hanasaka
pottery-stone is board-like. These particles are recognized as clay minerals
called halloysite (10ð, 7ð) and illite. Since these particles occupy about
35 mass% of soaked Hanasaka pottery-stone (75ƒÊm), these particles
could be important factors of controlling plasticity. By comparing other
clays, it was found that the factors controlling plasticity are the existence
of clay minerals with interlayer water and the board-like morphology of
very fine particles (2ƒÊm). As a result of actual making porcelain
clay, at least 25`28% of clay minerals contamination into porcelain clay
made its plasticity improve.
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Keywords ¡¡¡ |
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plasticity, clay minerals, Hanasaka
pottery-stone, porcelain clay |
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