Topic
Ceramic matrix composite
About: Ceramic matrix composite is a research topic. Over the lifetime, 7807 publications have been published within this topic receiving 117020 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, a composite of 3Y-TZP matrix composites containing 0.1-1.5% of MWCNTs and single-wall (SWCNT) carbon nanotubes was fabricated by spark plasma sintering technique.
106 citations
Patent•
05 Mar 2001
TL;DR: A combustor having liners made from ceramic matrix composite materials (CMC's) that are capable of withstanding higher temperatures than metallic liners as mentioned in this paper is designed to allow for the differential thermal expansion of the differing materials at their interfaces in a manner that does not introduce stresses into the liner as a result of thermal expansion.
Abstract: A combustor having liners made from ceramic matrix composite materials (CMC's) that are capable of withstanding higher temperatures than metallic liners. The ceramic matrix composite liners are used in conjunction with mating components that are manufactured from superalloy materials. To permit the use of a combustor having liners made from CMC materials in conjunction with metallic materials used for the mating forward cowls, and aft seals with attached seal retainer over the broad range of temperatures of a combustor, the combustor is designed to allow for the differential thermal expansion of the differing materials at their interfaces in a manner that does not introduce stresses into the liner as a result of thermal expansion and also balances the flow of cooling air as a result of the thermal expansion.
105 citations
TL;DR: In this article, it was found that the microstructure features achieved by properly designed sintering parameters are the main responsible factors for the strength improvements of carbon nanotubes.
Abstract: Silicon nitride based composites with different amount (1, 3 or 5 wt%) of carbon nanotubes have been prepared by using hot isostatic pressing. Composites with 1, 5 or 10 wt% carbon black and graphite have been manufactured, in comparison. Optimisation of the manufacturing processes has been performed, providing intact carbon nanotubes during high temperature sintering. In the case of 1 or 3 wt% carbon nanotube addition, the increase of gas pressure during sintering resulted in an increase of bending strength. It was found that microstructure features achieved by properly designed sintering parameters are the main responsible factors for the strength improvements. Scanning electron microscopy showed that carbon nanotubes have a good contact to the surface of silicon nitride grains. The electrical properties of silicon nitride matrices with carbon addition may change essentially.
104 citations
TL;DR: The Advanced Ceramics Based on Polymer Processing Program is sponsored by the Defense Advanced Research Projects Agency (Materials Science Division). The objectives of the program include development of a family of Si-C, Si-N, and SiC-N ceramic fibers which may be used for reinforcement in ceramic, metal and plastic matrices, and development of economical process technology for fabricating ceramic matrix composites with high fracture toughness, high temperature performance and no inherent limitations to forming complex shapes.
Abstract: The Advanced Ceramics Based on Polymer Processing Program is sponsored by the Defense Advanced Research Projects Agency (Materials Science Division). The objectives of the program include development of a family of Si-C, Si-N, and Si-C-N ceramic fibers which may be used for reinforcement in ceramic, metal and plastic matrices, and development of economical process technology for fabricating ceramic matrix composites with high fracture toughness, high temperature performance and no inherent limitations to forming complex shapes. Attainment of these objectives would circumvent two limitations of existing ceramic material technology - lack of design reliability due largely to catastrophic failure related to brittleness, and inability to fabricate complex shapes [1].
103 citations
Patent•
13 Sep 2004
TL;DR: A sintered ceramic compact as discussed by the authors is characterized by a polycrystalline binding layer composed of ceramic fine particles and/or aggregates which are present among the ceramic coarse particles in such a manner as to link them and have an average particle diameter less than that of said coarse particles.
Abstract: A sintered ceramic compact, characterized in that it comprises ceramic coarse particles and a polycrystalline binding layer composed of ceramic fine particles and/or aggregates thereof which are present among the ceramic coarse particles in such a manner as to link them and have an average particle diameter less than that of said coarse particles; and a ceramic filter manufactured by using the sintered ceramic compact. The sintered ceramic compact or the ceramic filter can suppress the occurrence of a large crack due to the break of particles of silicon carbide in the case wherein a thermal stress is applied to the sintering compact in a re-treatment or the like, can suppress the deterioration of a catalyst carried on it in the case that it is re-treated repeatedly, and thus can be used stably for a long period of time.
102 citations