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Effect of metal alkoxide ratio and TiO2 composition on the synthesis of crystalline LAS glass by Sol-Gel method

졸-겔법에 의한 LAS계 결정화 유리합성에 미치는 금속 알콕사이드와 TiO2 조성비의 영향

  • Seo, Kwang-Seok (Department of Environmental & Energy Engineering, Department. of Chemistry, Gachon University) ;
  • Chun, Kyung-Soo (Department of Environmental & Energy Engineering, Department. of Chemistry, Gachon University)
  • 서광석 (가천대학교 환경에너지공학과, 나노화학과) ;
  • 전경수 (가천대학교 환경에너지공학과, 나노화학과)
  • Received : 2012.12.14
  • Accepted : 2013.06.04
  • Published : 2013.06.25

Abstract

For the synthesis of crystalline LAS glass by sol-gel method, the effect of operation conditions including metal alkoxide ratio, nucleating agent composition and heat treatment on the crystalline properties was experimentally investigated. The gelation time and crystallization temperature were proportionally affected by the mole ratio of TEOS in metal alkoxides solution. The addition of $TiO_2$ had an influence on the increasing of the gelation time, but the crystallization temperature was rarely dependent on the adding of nucleating agent. The crystallinity of LAS glass was improved by the nucleating agent under same heat treatment conditions.

Keywords

sol-gel method;LAS glass;nucleating agent;heat treatment;crystalline structure

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