Affiliation:
1. Federal University of Santa Catarina, UFSC
2. Federal University of Santa Catarina (UFSC)
3. Universidade Federal de Santa Catarina (UFSC)
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.
Publisher
Trans Tech Publications Ltd
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