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, a model which takes into account an elastic interaction between a polydomain grain and a surrounding ceramic matrix under weak external mechanical stresses has been used for evaluating a contribution from 90° domain wall displacements to piezoelectric and elastic constants of the perovskite ferroelectric ceramics.
Abstract: A proposed model which takes into account an elastic interaction between a polydomain grain and a surrounding ceramic matrix under weak external mechanical stresses has been used for evaluating a contribution from 90° domain wall displacements to piezoelectric and elastic constants of the perovskite ferroelectric ceramics. A difference between experimental and averaged constants of BaTiO3 ceramics can be explained by the estimated contribution.
60 citations
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TL;DR: The behavior of carbon/silicon carbide composites at very high temperatures is investigated in an inductively-coupled plasma generator that simulates atmospheric re-entry aerothermal conditions for space vehicles as discussed by the authors.
60 citations
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TL;DR: In this paper, the effect of matrix type on the friction and wear properties of the composites is mainly related to its hardness and binding property with graphite, which causes significant changes in the degree of difficulty for extruding lubricants onto the friction surface from the material interior and plastic deformation resistance of composites.
60 citations
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30 Jun 2014TL;DR: In this paper, a high-energy beam is used to fuse a single powder of particles that present sphericity lying in the range 0.8 to 1.0 and of form factor lying in range 1 to √2.
Abstract: A method of fabricating parts out of metallic, intermetallic, ceramic, ceramic matrix composite, or metal matrix composite material with discontinuous reinforcement, includes melting or sintering powder particles by means of a high-energy beam. The powder used is a single powder of particles that present sphericity lying in the range 0.8 to 1.0 and of form factor lying in the range 1 to √2, each powder particle presenting substantially identical mean composition, and the grain size distribution of the particles of the powder is narrowed around the mean diameter value d50% in such a manner that: (d90%−d50%)/d50%≦0.66; and (d50%−d10%)/d50%≦0.33; with a “span”: (d90%−d10%)/d50%≦1.00.
60 citations