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Effect of rice husk ash in whiteware compositions

By C S Prasad, Kedar Nath Maiti and R Venugopal

Abstract

Quartz was progressively replaced by ground active silica obtained from ricehuskash (RHA) in a traditional whitewarecomposition and the effect of this replacement on the vitrification behaviour and mechanical and thermal properties in relation to the microstructure of specimens has been investigated. It has been found that the complete replacement of quartz by RHA drastically reduced both the maturing temperature and the percentage of thermal expansion, and increased the strength marginally. The improvement in the properties is attributed to sharp changes in the microstructural features as a result of significant reduction in the content of quartz phase and the simultaneous increase in glassy phase

Topics: Whiteware
Publisher: 'Elsevier BV'
Year: 2001
OAI identifier: oai:cgcri.csircentral.net:1394
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