Influence of lithium oxide as auxiliary flux on the properties of triaxial porcelain bodies
authors Tulyaganov, DU; Agrathopoulos, S; Fernandes, HR; Ferreira, JMF
nationality International
journal JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
author keywords Li2O; firing; microstructure final; mechanical properties; porcelains
keywords WHITEWARE BODIES; SPODUMENE; EUCRYPTITE; EVOLUTION
abstract The influence of Li2O-content on the properties of standard triaxial porcelains was investigated. Two series of porcelain formulations were produced. The first one comprised seven model formulations with increasing amount of Li2CO3 (1-7 wt.%), with respect to the standard triaxial porcelain formulation. The experimental results showed that desirable properties for tableware porcelains can be attained if the Li2O-content does not exceed similar to 1.5 wt.%. In the light of this conclusion, the second series of formulations aimed at producing new porcelains using Li-bearing natural rocks. Under in industrial perspective, the most important finding is that these compositions matured at temperatures 100-120 degrees C lower than the standard triaxial porcelain formulation and exhibited remarkable resistance at over-firing conditions. The role of increasing Li2O-content at the different stages of firing is interpreted in the light of its influence on densification, the evolution of crystalline phases and microstructure. (c) 2005 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0955-2219
year published 2006
volume 26
issue 7
beginning page 1131
ending page 1139
digital object identifier (doi) 10.1016/j.jeurceramsoc.2005.01.036
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000236518100006
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journal analysis (jcr 2017):
journal impact factor 3.794
5 year journal impact factor 3.536
category normalized journal impact factor percentile 98.148
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