Transactions of the INDIAN CERAMIC SOCIETY Vol. 59 2000
Effect of High Viscous Liquid on the Densification
Behaviour of SiC-Clay Composites
M. Ahsan, K. Adhikary and A. K. Samanta
Pages : 58-63
DOI : 10.1080/0371750X.2000.10799924
Abstract
Difficulty in consolidation of SiC, particularly at a lower
temperature and in ambient atmosphere, necessitates the use
of second phase bonding materials like clay and other
aluminosilicates. In such systems, oxidation of SiC is difficult to
control and it goes on until substantial amount of glassy phase
is formed which protects individual SiC grains from further
oxidation. A high viscosity glass if used for the initial bonding
of SiC grains along with a second phase material like clay, the
above difficulties could be overcome. In the present investigation,
5% high viscous glass was used along with china clay and
the results regarding the oxidation behaviour of SIC and
mechanical properties of the sintered compacts were compared
with those of the compositions without glass.
