Transactions of the INDIAN CERAMIC SOCIETY Vol. 52 1993
Physico-Chemical Characterization of Meghalaya
Clays for use in Ceramics
S.c. BARAL, s. R. DAS AND s. N. GHOSH
Pages : 176-783
DOI : 10.1080/0371750X.1993.10804599
Abstract
The physico-chemical properties of kaolinised granites occurring
near Darugiri area of East Garo Hills, Meghalaya
were studied with a view to finding out their possible use in
ceramic industry. Two samples collected from two different
blocks of the area were evaluated for the purpose. The
study was conducted on the crude as well as washed fractions
of grade I and grade II days as obtained by levigation
at the Institute. The investigation included the determination
of unfired physical properties, fired characteristics at
five different temperatures and the PCE value. The results
indicate that washed fractions of clay No. l in particular
are quite promising for the manufacture of various kinds of
whitewares when judiciously formulated with other ceramic
raw materials. On the other hand, washed clay No.2, due to
its off-white colour on firing, is suitable for other types of
ceramic products except porcelain dinnerware.