TECHNOLOGICAL PROPERTIES OF RAW CLAY BASED CERAMIC TILES: INFLUENCE OF TALC

被引:0
|
作者
Sawadogo, Moustapha [1 ]
Zerbo, Lamine [1 ]
Seynou, Mohamed [1 ]
Sorgho, Brahima [1 ]
Ouedraogo, Raguilnaba [1 ]
机构
[1] Univ Ouagadougou, UFR SEA, LCMM, 03 BP 7021, Ouagadougou 03, Burkina Faso
关键词
ceramic tiles; energy gain; low temperatures; raw clay; sintering; talc;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Local clay from Burkina Faso has been used as a basic raw material in the formulation of ceramic tile with a natural talc (0 - 4% wt) as a flux. The used sintering temperatures are between 950 and 1100 degrees C with one hour as hold at heating rate of 5 degrees C.min(-1). The different technological properties (shrinkage, water absorption and mechanical strength) are improved when the sintering temperature exceeds 1000 degrees C. The mixture with 4% wt of talc provides better properties than the other grades. The tiles obtained at 1050 degrees C with 4% wt of talc have similar characteristics to those obtained at 1100 degrees C without talc. An energy gain with a difference of temperature of 50 degrees C could be made with the use of talc as the adjuvant.
引用
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页码:231 / 238
页数:8
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