Paper Title:
Roll Pressed LZSA Glass-Ceramics
  Abstract

This work reports some experimental results regarding to a Li2O-ZrO2-SiO2-Al2O3 (LZSA) sintered glass-ceramic material obtained by roll pressing of glass powders (mean particle size ≈ 5 μm) with an added (7 wt.%) inorganic material (bentonite) as binder. The composition was characterized using chemical analysis, laser-scattering particle size analysis, DTA, XRD, thermal expansion, modulus of rupture (MOR) and deep abrasion (DA) measurements as well as density measurements and SEM observations. From the results it was verified that the glass-ceramic materials obtained by sintering and controlled crystallization, in the 850-1030°C temperature range, of glass powders, have properties and characteristics decisively better than those of other traditionally used materials. It is concluded that roll pressing technology is a potential candidate to produce sintered glassceramics for many applications, such as, for example, large sheets panels for electrical and thermal insulation.

  Info
Periodical
Edited by
P. VINCENZINI
Pages
442-446
DOI
10.4028/www.scientific.net/AST.45.442
Citation
G.M. Reitz, O. R.K. Montedo, O. E. Alarcon, D. Hotza, A. P. Novaes de Oliveira, "Roll Pressed LZSA Glass-Ceramics", Advances in Science and Technology, Vol. 45, pp. 442-446, 2006
Online since
October 2006
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