Effect of Al2O3 additions on the acid durability of a Li2O-ZnO-SiO2 glass and its glass-ceramic


Demirkesen E. , Goller G.

CERAMICS INTERNATIONAL, vol.29, no.4, pp.463-469, 2003 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 4
  • Publication Date: 2003
  • Doi Number: 10.1016/s0272-8842(02)00188-8
  • Title of Journal : CERAMICS INTERNATIONAL
  • Page Numbers: pp.463-469

Abstract

The effect of Al2O3 substitution on the acid durability of a Li2O-ZnO-SiO2 glass and its glass-ceramic was investigated depending on the applied heat treatments, the type and concentrations of acid solutions, and leaching time. Satisfactory acid durability was obtained by using 6 wt.% Al2O3 for the glass and 11 wt.% for the glass-ceramic. The acid resistance of both glasses and glass-ceramics was found to be affected markedly by the presence Of P2O5 or TiO2 used as nucleating agent. (C) 2002 Elsevier Science Ltd and Techna S.r.l. All rights reserved.