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.
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TL;DR: In this paper, the design of ceramic-metal composites with a gradient concentration of the metal particles fabricated by the slip casting method is presented, where the gradient concentration was achieved through their sedimentation under the action of the gravitational force and a magnetic field.
Abstract: The design of ceramic–metal composites with a gradient concentration of the metal particles fabricated by the slip casting method is presented. The gradient concentration of the metal particles was achieved through their sedimentation under the action of the gravitational force and a magnetic field. The paper describes the method of calculating the distance between the ceramic particles and indicates the correlation between this distance and the size of the metal particles. Preliminary experimental results of fabricated Al2O3–Fe composites confirmed the calculations. The metal particles, whose density is higher than that of ceramic particles, can undergo gravity-induced sedimentation only when the distance between the ceramic particles is greater than the diameter of these metal particles. With a slip casting containing 50 vol.% of solid phase, no concentration gradient of metal particles occurred. The Fe gradient concentration was achieved when the sedimentation was aided by a magnetic field.
50 citations
TL;DR: In vitro study ascertained the biocompatibility of the prepared sol-gel-derived HA/MWCNT composite coatings and showed that the addition of low concentrations of MWCNTs had improved effect on the mechanical properties of nanocomposite coatings.
50 citations
TL;DR: Forced chemical vapor infiltration (FCVI) is developed as an efficient means for producing thick-wall ceramic matrix components as discussed by the authors, which has been shown to be an efficient technique for producing high-strength ceramic matrix composites.
50 citations
TL;DR: In this paper, a model for crack closing forces combining simple mechanics and Weibull statistics was proposed to relate these forces to the properties of fibres, matrix and their interface.
Abstract: Delamination cracks in long-fibre reinforced ceramic matrix composites are found to be bridged by fibres which span the crack wake at a shallow angle. The in situ observation of bridging fibres reveals that these are subject to considerable tensile forces, giving rise to a substantial crack closure force. The overall crack closure force is determined by the number of bridging fibres, steadily reduced by fibre failure caused by high bending moments at the root of each fibre. This leads to a model for crack closing forces combining simple mechanics and Weibull statistics. The model relates these forces to the properties of fibres, matrix and their interface.
50 citations
TL;DR: In this article, the authors described a method of preparation of Si-diamond-SiC composites by in-situ reactive spark plasma sintering (SPS) process.
50 citations