Improvements in the mechanical properties of TiC by the dispersion of fine SiC particles

Rapid Reactive Synthesis and Sintering of Submicron TiC/SiC Composites through Spark Plasma Sintering

“…Many investigations have shown that the dispersion of TiC particles results in great enhancement in fracture toughness of SiC-based ceramics. [1][2][3] Recent studies showed that TiCbased composites also exhibit excellent mechanical properties and chemical stability, with an increase in fracture toughness over either constituent compound. 4 TiC-SiC composites were prepared by hot-pressing or pressureless sintering using TiC and SiC powders as the start materials with the sintering aids of carbon and aluminum or Al 2 O 3 and Y 2 O 3 to a near full density at temperatures of ϳ1850°-2000°C for Ͼ1 h, although low temperature sintering is more economical.…”

Controlled Synthesis of β-SiC Nanopowders with Variable Stoichiometry Using Inductively Coupled Plasma

“…The decrease of the grain size has already been proved to enhance the hardness [1] and to improve the resistance to plasma erosion [2] and to thermal shocks [3]. Moreover, the reinforcement of a composite by a nanometric component can lead to an increase in the performance of the obtained material, as can be seen in the case of SiC/TiC composites [4,5]. Concerning nuclear applications, the high density of grain boundaries that can be encountered in nanostructured ceramics is assumed to permit a fast recovery of irradiation induced defects [6].…”

Application of the laser pyrolysis to the synthesis of SiC, TiC and ZrC pre-ceramics nanopowders

“…improved hardness [4], resistance to plasma erosion [5] or thermal shock [6]) make these nanomaterials more suitable for many applications than the conventional ceramics, because they could permit to overcome the typical drawbacks of traditional ceramics exhibiting low ductility and high brittleness. As an example, the reinforcement of a composite by a nanometric powder can lead to an improvement of the mechanical properties of the obtained material, as can be seen in the case of SiC/TiC composites [7,8]. Moreover, the high density of grain boundaries encountered in nanostructured ceramics could lead to a recovery of the irradiation induced defects shortly after their generation [9].…”