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분체공학 유동층 재료 ( 무기 , 유기 , 고분자 ) / 고알루미나 세라믹스의 첨가제 첨가에 따른 고온 특성
김기주(Ki Ju Kim),윤상로(Sang Ro Yoon),김동섭(Dong Seop Kim) 한국화학공학회 1999 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.37 No.4
High temperature characteristics and the corrosion resistance to slag were studied by the specimens of the manufactured according to the addition of clay, zirconia, talc and used the titanum oxide as a sintering agent in high alumina ceramics. These specimens were fired under the temperature at 1,500℃ and 1,650℃. The specimen fired at 1,500℃ was a better in the properties at room temperature and the mechanical strength than that fired at 1,650℃. There was no change of phase between the corundum, AT and baddeleyite at the temperatures 1,500℃ and 1,650℃. The existence of liquid phase was observed in the specimens with the composite additives such as clay, zirconia and talc. The specimen with talc and zirconia was good in the thermal bending strength, linear thermal expansion and elasticity at high temperature. The corrosion resistance of TiO₂-added specimen was higher than that of the composite additives specimens.