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송인혁,이은정,김해두,김영욱,윤달웅 한국세라믹학회 2011 한국세라믹학회지 Vol.48 No.5
The humidity controlling ceramic materials was developed by applying the phenomena of dew condensation in the capillary. It is said that the humidity range which human feels comfortable is from 40 to 70% in relative humidity. In this study, the ceramic tile using natural soils such as diatomite for interior wall was investigated. In particular, we had introduced novel processing routes for fabricating microcellular ceramics tile using hollow microsphere as a pore former. The microcellular pores in the humidity controlling ceramic materials showed the superior properties such as light-weight, heat insulation. The cell density was ~1.0 × 10^9 cells/cm3 and density of sample was 0.65 g/cm^3 in the case of 1.71 wt% hollow microsphere content. Also, it is observed that the BET surface area and the pore volume of the sintered diatomite tile have the values of 40.92 m^2/g and 0.173 cm^3/g.