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J. Korean Ceram. Soc. > Volume 12(2); 1975 > Article
Journal of the Korean Ceramic Society 1975;12(2): 26.
분상된 붕규산유리의 산처리에 관한 연구
박용완, 신건철
한양대학교 공과대학
A Study on Acid Treatment of Borosilicate Glass
The experiment has been carried out to clarify the condition of acid treatment for preventing the crack formation caused by swelling and shrinking during acid leaching process. The borosilicate glass contained phosphorous pentoxide was chosen as the sample, which is recognized to be more homogeneous in phase separation. The various effects, such as kind, cocentration and acid temperature, were investigated. The experimental results are summerized as follows. (1) Sulfuric acid is more stable than hydrochrolic acid for preventing the crack. (2) The optimum concentration of acid lies in the range of 0.1~0.3N. (3) Higher temperature of the acid to treat the separated glass was more stable than lower temperature. (4) The rate of crack decreased with the longer period and the higher temperature of the heat treatment.
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