Abstract
TiB2-based composites were fabricated by taking SHS with the blends of (B4C+Ti) and thermite in high-gravity field. XRD, FESEM and EDAX results showed that the composites mainly were consisted of fine plate-like TiB2, irregular TiC and (Cr,Ti)3B2 solids and Al2O3 inclusion particles. The introduction of high-gravity field brought about pure Ti-Cr-B-C liquid, whereas rapid solidification was a key factor for the achievement of fine-grained microstructures, which in turn was responsible for the much improved wear properties of the composites.
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