The Study on the Strengthening of $Li_2O-AI_2O_3-SiO_2$ Glass-Ceramics by Ion Exchange

LAS계 결정화유리의 화학적강화에 관한 연구

  • Jang, Pil-Sun (Dept. of MaterialsScience & Engineering Donkook University) ;
  • Gang, Won-Ho (Dept. of MaterialsScience & Engineering Donkook University)
  • Published : 1996.04.01

Abstract

본 연구는 이온교환에 의한 Li2O-AI2O3 계 결정화유리의 강화에 관한 연구이다. 모유리의 이온교환 전후의 강도를 비교하였으며, 결정화유리의 결정화전후에 이온교환에 따르는 강도를 상호 비교하였다. 그 결과 모유리의 Na+이온교환에 따른 최대 강도값은 45$0^{\circ}C$-3hr의 열처리 조건하에서 최고 6배(60Kg/mm2)의 강도값을 나타내었으며, 결정화후 이온교환에 따른 강도증가는 45$0^{\circ}C$-1hr의 열처리 조건하에서 최고 10배의 강도증대효과를 보였다. 한편 과도한 이온교환 열처리조건하에서는 응력이완현상을 나타냄을 알 수 있었다.

Keywords

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