Pyroplastic deformation behavior of vitreous porcelain bodies in presence of spodumene

Journal of the Australian Ceramic Society - Tập 53 - Trang 545-551 - 2017
Derya Yeşim Hopa1, Emel Özel2
1Faculty of Engineering, Department of Chemical Engineering, Afyon Kocatepe University, Afyonkarahisar, Turkey
2Faculty of Engineering, Department of Materials Science and Engineering, Anadolu University, Eskisehir, Turkey

Tóm tắt

Pyroplastic deformation tendency of vitreous body compositions is a major production problem. In this work, a vitreous sanitaryware body composition (ST) which was developed in a previous work was taken as standard, and the sodium feldspar content of this recipe was changed with spodumene as a source of Li2O. Six different compositions were formulated by applying two different approaches: weight percent formulation and Seger formulation. Bodies were fired at 1250 °C and after firing deformation, firing shrinkage, and water absorption values were measured. Pyroplastic deformation behavior of bodies was determined by using fleximeter with a peak temperature of 1250 °C. According to the results, it was observed that spodumene addition with Seger formulation gives better results than weight percent formulation. The body which contains 0.1 mol% of Li2O (L2 body) has deformation value which is 11% lower than that of standard body due to its different phase composition and microstructure than ST body.

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Thông tin xuất bản

Journal of the Australian Ceramic Society

Tập 53

545-551

Thông tin tác giả