ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 63, (2) 204 - 212 (2019)


THE EFFECT OF SURFACE-TREATED ANHYDROUS BORAX ADDITIONS ON HARD PORCELAIN PROPERTIES
 
Akpinar Suleyman
 
Afyon Kocatepe University, Department of Material Science and Engineering, Afyonkarahisar, Turkey

Keywords: Anhydrous borax, Surface treatment, Porcelain, Rheology, Firing
 

The utilisation of surface-treated anhydrous borax to facilitate densification of hard porcelain bodies, prepared by slip casting from suspensions containing mixtures of silicate-based raw materials, was investigated. After surface treatment with stearic acid, anhydrous borax powders were added to the initial mixture by partial substitution with potassium feldspars up to 3 wt% to examine their potential effects on the finished product. By the addition of surface-treated borax to the suspensions, stabilised with different dispersants (Darvan 821A and Dolapix CE-64), hard porcelain bodies of high strength, which were fired at a lower temperature than the industrial firing temperature, were obtained. After studying the effects of the different amounts of surface-treated borax addition on the porcelain properties, it was found that the addition of borax causes distinct effects on the physico-mechanical properties of hard porcelain.


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doi: 10.13168/cs.2019.0012
 
 
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