J. Korean Ceram. Soc. > Volume 14(2); 1977 > Article
 Journal of the Korean Ceramic Society 1977;14(2): 95.
 함평, 교촌 점토의 특성과 점토-유기물 복합체에 관한 연구 정창주, 백용혁, 박현수 전남대학교 요업공학과 Hampyong, Kyochon Clay-Its Characteristics and the Effects of Clay-organic Complexes on its. ABSTRACT Characteristics of Ham Pyong clay and clay-organic complexes were investigated by means of geological exploration, chemical analysis, X-ray diffraction, differential thermal analysis, electron microscopy, thermal mechanical analysis, cation exchange capacity and viscosity measurement. The results are as follows; 1) This caly is a transported clay which has black and white colors, and the amounts of deposit are estimated about 1, 600, 000M/T. 2) The major mineral phases identified by X-ray diffraction are kaolinite, sericite and halloysite and the minor phases are quartz and feldspar, these mineral phases can be seperated very easily by the elutriation method. 3) It was supposed that the black colored clay involved a certain clay-organic complexs by the mechanism of intercalation as well as surface absorption. 4) The clay-organic complexes in clay seemed to improve dispersity, to increase the fluidity of clay-water slips, to decrease the firing shrinkage and to promote the thermo-chemical reaction at temperature range up to 50$0^{circ}C$, but not to effect on the resulted firing color.
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