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Assessment of the partial and total replacement of feldspar by waste glass on porcelain properties
Marwa Marza Salman,Hussein Talab Nhabih 한양대학교 세라믹연구소 2020 Journal of Ceramic Processing Research Vol.21 No.3
In this study, soda-lime silica waste glass was used as partial and total replacement for feldspar in porcelain. The preparedsamples from feldspar, quartz, kaolin and different percentages of waste glass by powder technology technique were sinteredat 1,100 ºC and 1,200 ºC. The tests measured for samples involves mechanical, physical and thermal properties. A results ofthese tests indicated an increasing and decreasing in the samples properties with increasing of waste glass additive, and thatcontinues to 75% waste glass of feldspar. While X-ray diffraction analysis indicated a presence of tridymite phase SiO2, mullitephase 2SiO2.3Al2O3 and anorthite phase CaAl2Si2O8 in the sample contained 100% waste glass of feldspar and fired at1,200 ºC. This study showed possibility of replacement of feldspar used in porcelain industry by waste glass as flux, and apercent of waste glass additive, which gives the best properties of porcelain samples, is 75% wt. of feldspar.