Kw. Chae et al., EFFECT OF Y2O3 ADDITIONS ON THE DENSIFICATION OF AN AL2O3-TIC COMPOSITE, Journal of the American Ceramic Society, 76(7), 1993, pp. 1857-1860
The densification of Al2O3-30TiC (in weight percent) composite is inve
stigated as a function of Y2O3 additions. It is observed that very sma
ll amounts of Y2O3 are effective in aiding the densification. The dens
ity was observed to pass through a maximum at 0.35 wt% of Y2O3. The ga
s-generating reaction of Al2O3 with TiC is likely to be suppressed by
the addition of Y2O3.