A Study on the Glass Strengthened in Salt Solution by Chemical Ion Exchange

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J. Korean Ceram. Soc. > Volume 24(4); 1987 > Article

Journal of the Korean Ceramic Society 1987;24(4): 335.

염 용액에서의 화학적 이온교환 강화유리에 관한 연구

이종근, 김인섭

한양대학교 무기재료공학과

A Study on the Glass Strengthened in Salt Solution by Chemical Ion Exchange

ABSTRACT

There were several numbers of studies on chemically strengthening glass. Most of them were strengthened in molten salt bath below transformation range of glass. Apart from them, this study used solution hydration technique by Autoclave. After determining proper concentration of AgNO3 salt solution, experimental condition varied from 4hrs to 16hrs at relatively low temperature (180, 200, 220$^{circ}C$). The results showed that the Soda-Lime-Silica glass could be strengthened by diffusion mechanism without influence of water above 15% salt solution. Because of Ag+ ion penetration in glass surface, yellow color appeared and decreased transmittance at visible range. Modulus of rupture was increased with the amount of exchange and brittleness was decreased.