The combination of excellent mechanical, thermal and chemi­cal properties of silicon carbide and titanium carbide has made these materials very attractive both for structural ceramics applications and for thermal sprayed coatings. To suppress oxidation and to avoid the formation of silicides during spraying of SiC-based composites, feedstock spray powders have been developed containing 32 wt.-% of an alumina-yttria ceramic binder matrix. The spray powders are prepared by spray-drying and sintering (a&s). Also TiC-based composite spray powders showing same matrix material and content have been developed and produced. Thermal spray processing of the discribed powders by atmospheric plasma spraying (APS) using an F6 APS torch and high velocity oxygen fuel spraying (HVOF) with acetylene is carried out. Both produced coatings and powder feedstocks are characterised by optical microscopy, X-ray diffraction and SEM. In addition, the sprayed coatings are also investigated concerning mechanical properties, i.e. microhardness, wear resistance and their behaviour under exposure to corrosive environments. Furthermore wetting behaviour of metallic melts on the coatings is examined.