Carbon/ceramics composites — Preparation and properties

A Novel Oxidation Resistant SiC/B4C/C Nanocomposite Derived from a Carborane‐Containing Conjugated Polycarbosilane

“…1 However, utilization of carbon materials in oxidizing environments has been limited due to oxidation at temperatures as low as 400°C. 5 However, the poor sinterability between carbon and SiC and B 4 C ceramic powders as well as the difficulty in obtaining a homogeneous dispersion of ceramic powders in a carbon matrix can influence the properties of the carbon/ceramic composites produced. Carbon/ceramic composites similar to C/SiC-B 4 C have attracted considerable interest due to their excellent oxidation resistance at temperatures up to 1400°C in air.…”

“…[2][3][4] These composites are usually prepared by traditional techniques such as pressureless sintering or hot-pressing of the mixtures of carbon and ceramic powders at high temperatures. 5 However, the poor sinterability between carbon and SiC and B 4 C ceramic powders as well as the difficulty in obtaining a homogeneous dispersion of ceramic powders in a carbon matrix can influence the properties of the carbon/ceramic composites produced. Moreover, sintering and hot-pressing methods are not suitable for manufacturing complex shaped products due to high machining costs.…”

Synthesis and characterization of carbon–silicon carbide particulate composites by powder metallurgical route

“…The raw materials used in this stud from Zouza member in far north terials were all recognized as ri | 7 MANOCHA et Al.…”

“…The development of carbon–ceramic particulate composites is another way to overcome these disadvantages. The incorporation of different ceramics into carbon results in significant improvement in mechanical properties, especially hardness and bending strength, in addition to enhancement of oxidation resistance of the carbon–ceramic composites 7 …”

“…The incorporation of different ceramics into carbon results in significant improvement in mechanical properties, especially hardness and bending strength, in addition to enhancement of oxidation resistance of the carbon-ceramic composites. 7 Many efforts have been made to prepare carbon-ceramic composites with silicon powder and phenolic resin as carbon precursor. Tang et al 8 reported a three-step process in which silicon powder and phenolic resin were used as raw materials to fabricate silicon carbide powder via coat-mix process.…”