Properties of HVOF sprayed TiC and TiB2-based cermet coatings
Jones, Mark (2002) Properties of HVOF sprayed TiC and TiB2-based cermet coatings. PhD thesis, University of Nottingham.
This work reports research concerning the properties of cermet coatings deposited by high velocity oxy-fuel spraying, which are designed to exhibit resistance to abrasive wear and high-temperature oxidation. Cermet powders have been produced by self-propagating high-temperature synthesis (SHS) reaction of elemental powder mixtures of Fe, Cr, Ti and C or B, to produce a cermet, containing an Fe(Cr) binder phase and a hard ceramic phase, TiC or TiB2. The Ti and C content in the powder mixtures were varied in order to evaluate the effect of the C: Ti ratio of TiC on the overall integrity of three different feedstock powders and coatings produced. Four cermet coatings were produced from these SHS powders, one TiB2-based and three TiC-based.
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