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Effect of Sintering Condition and Temperature on the Characteristics of Porcelain Rich in Alumina
- The elemental composition of clays, feldspar, and quartz and mechanical properties of washed clays were determined by Energy Dispersive Fluorescence (ED-XRF) method. Six different body mixtures with varying weight of added alumina (Al2 O3) were prepared and sintered at 1230ºC under reduction condition and also at 1300ºC under oxidation condition. In this research work, an investigation was done on the real difference between the effect of sintering under reduced atmosphere and the real atmosphere. The differentiation between strength of glazed and unglazed bodies were also studied. Their physic-chemical properties (color, shrinkage, bulk density, water absorption, and apparent porosity) mechanical properties (bending strength as modulus of rupture ), thermal property (thermal conductivity), and electrical properties (electrical resistivity, dielectric constant, and dielectric loss) were determined. The processed electrical porcelains, G1, G2 and I2 have potential to use as insulators where high mechanical strength is a criterion.
Thwe Linn Ko
Khin Thet Ni
- Universities Research Journal