Thermal and Physical Properties of White-Opaque Sanitary Glazes Using Lampang Pottery Stone as Raw Materials

Pakawadee Sirilar; Nakorn Srisukhumbowornchai; Purit Thanakijkasem; Somnuk Sirisoonthorn; Gernot Klein

doi:10.4028/www.scientific.net/MSF.872.118

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HomeMaterials Science ForumMaterials Science Forum Vol. 872Thermal and Physical Properties of White-Opaque...

Thermal and Physical Properties of White-Opaque Sanitary Glazes Using Lampang Pottery Stone as Raw Materials

Abstract:

The aim of this work was to determine thermal and physical properties of white-opaque sanitary glazes. Lampang pottery stone was used to replace silica (G2) and feldspar (G3) in the commercial sanitary glaze (G1). All formulations of glazes developed from Seger formula calculation and the glaze slurry was prepared by wet milling, green glazing on commercial ceramic body and firing at 1200^๐C with heating rate of 3^๐C/min by using electric kiln. Melting characteristics, specular gloss, lightness, color, and thermal expansion behavior of all sanitary glazes were investigated. As a result, the glaze G2 was a good reflecting surface with high lightness value. Linear thermal expansion difference at 500^๐C between the glaze G2 and the commercial ceramic body was-0.015%. This glaze-body fit was, therefore, under small compression and more compatible to ceramic sanitary products.

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Materials Science Forum (Volume 872)

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118-122

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.872.118

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Online since:

September 2016

Authors:

Pakawadee Sirilar*, Nakorn Srisukhumbowornchai, Purit Thanakijkasem, Somnuk Sirisoonthorn, Gernot Klein

Keywords:

Glaze-Body Fit, Gloss, Lightness, Melting Characteristic, Thermal Expansion

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