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J. Korean Ceram. Soc. > Volume 35(12); 1998 > Article
Journal of the Korean Ceramic Society 1998;35(12): 1337.
ZnS 미립자 분산 붕규산엽계 유리에서의 분상 및 미립자 석출 특성
이승환, 류봉기1
부산대학교 무기재료공학과
1부산대학교 생산기술연구소
Phase Separation and Precipitation Characteristics in ZnS doped Borosilicate Glasses
To investigate an effect of phase separation on precipitation characteristics of ZnS microcrystals in ma-trix glass ZnS doped borosilicate glasses for nonlinear optical applications were prepared by melting and pre-cipitation process. ZnS dopant contributed to phase separation promotion which increased the phase separa-tion of the matrix glass within immiscibility region. It was also found that ZnS as phase separation promoter showed a similar contribution for some selected glass compositions in miscibility region. The precipitation of ZnS microcrystals occurred in thephase separable glass compoitions. The radius of ZnS microcrystals in-creased with increasing the heat treatment temperature and Na2O contents of matrix glass composition. The ZnS particle sizes estimated by effective mass approximation ranged from about 30 to 80${AA}$ It was suf-ficiently small to show quantum confinement effect.
Key words: ZnS, f Borosilicate glasses, Phase separation, recipitation, Nonlinear optics
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