The effect of Cr and C addition on the sintering process of TiB2 ceramics was investigated and discussed from microstructural and compositional viewpoints.Simul taneous addition of 6.2wt% Cr and 1.3wt% C resulted in high density, high bending strength and high hard ness.Results of X-ray diffraction of the TiB2 composite fired at 900•‹-1900•Ž showed that Cr and C reacted with TiB2 to form CrB and TiC during the sintering process.
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MATSUSHITA et al. (1992) studied this question.