S. Gorsse et Y. Lepetitcorps, A NEW APPROACH IN THE UNDERSTANDING OF THE SIC TI REACTION ZONE COMPOSITION AND MORPHOLOGY/, Composites. Part A, Applied science and manufacturing, 29(9-10), 1998, pp. 1221-1227
The morphology of the SiC/Ti reaction zone has been analysed by scanni
ng electron microscopy. The composition of the different constituents
was determined by Auger and X-ray microprobes. It was found that the t
wo main constituents through the reaction zone were Ti5Si3(C) and TiCx
. The TiCx crystals were measured from the inner part of the reaction
zone (against the SiC) to the outer part of the reaction zone (against
the titanium). By changing the scale of space by the scale of time, i
t has been possible to get the age of the TiCx crystals. This new appr
oach has been useful to determine the kinetic rate of the SiC/Ti react
ion and also to understand what was the driving force for the SiC/Ti r
eaction zone growth. (C) 1998 Elsevier Science Ltd. All rights reserve
d.