Transactions of the INDIAN CERAMIC SOCIETY Vol. 48 1989
Effect of Particle Size on the Vitrification Temperature
and Fired Properties of Conventional White
Stonewares
K. N. MAITI AND C. S. PRASAD
Pages : 119-127
DOI : 10.1080/0371750X.1989.10822962
Abstract
Five-samples of a conventional stoneware composition have been prepared
with variations in grinding time. A body mix having identical
composition but produced under factory conditions was also collected
for the study. Physico-chemical characteristics of raw materials used
in the body mix were evaluated. Physical and fired properties of prepared
body samples fired at various test temperatures were measured
and their relationship with the particle size of mixed bodies was examined.
It was observed that the gradual reduction in particle size of the
mixed bodies improved the fired properties with the gradual increase
in test temperatures until vitrification. On optimization of properties,
it emerged that the conventional white stonewares containing particles
in the range of 60 to 65% below 10 micron not only matured at
a lesser temperature than that of the factory body containing about
50% particles below 10 micron, but also had improved ceramic
properties and were found suitable for successful industrial production.
