Research Article Open Access

Effect of Kaolin, Quartz, and Flux Content on the Porosity and Thermal Expansion Coefficient of Triaxial Bodies at Low Temperatures

Abstract

Triaxial bodies are well-known in porcelain industries. Using kaolinite, quartz, and feldspar as main constituents of raw material has many advantages, and makes calculations for body recipe much easier. Literature covers information for temperatures as high as 1400°C, which is higher than the soaking temperatures normally used in the porcelain industry. In this study, a pattern is developed for triaxial bodies at 1230°C. Comparison of this pattern and the pattern for 1400°C in literature shows that the production of dense bodies would be more restricted at a lower temperature. The glassy area at the proposed pattern is smaller, whereas porous and brittle areas at the pattern of 1230°C are wider than these areas at the pattern for higher temperatures. A linear relationship is established between flux content and porosity of triaxial bodies.

M.Ghaffari, E. Salahi*, A. Rajabi, A. Faeghinia

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