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首页> 外文期刊>Composites Science and Technology >Design, preparation and properties of non-oxide CMCs for application in engines and nuclear reactors: an overview
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Design, preparation and properties of non-oxide CMCs for application in engines and nuclear reactors: an overview

机译：用于发动机和核反应堆的非氧化物CMC的设计，制备和性能：概述

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摘要

SiC-based ceramic matrix composites, consisting of carbon or SiC fibers embedded in a SiC-matrix, are tough ceramics when the fiber/matrix bonding is properly optimized through the use of a thin interphase. They are fabricated according to different processing routes (chemical vapor infiltration, polymer impregnation/pyrolysis, liquid silicon infiltration or slurry impregnation/hot pressing) each of them displaying advantages and drawbacks which are briefly discussed. SiC-matrix composites are highly tailor-able materials in terms of fiber-type (carbon fibers of SiC-based fibers such as Si-C-O, SiC+C or quasi-stoichiometric SiC reinforcements), interphase (pyrocarbon or hexagonal BN. as well as (PyC-SiC)_n or (BN-SiC)_n multilayered interphases), matrix (simple SiC or matrices with improved oxidation resistance, such as self-healing matrices) and coatings (SiC or engineered multilayered coatings). The potential of SiC-matrix composites for application in advanced aerojet engines (after-burner hot section), gas turbine of electrical power/steam cogeneration (combustion chamber) and inner wall of the plasma chamber of nuclear fusion reaction, all of them corresponding to very severe conditions is discussed.
机译：SiC基陶瓷基复合材料由嵌入SiC基质中的碳或SiC纤维组成，当通过使用稀薄的相间适当地优化纤维/基质键合时，它们是坚韧的陶瓷。它们是根据不同的加工路线（化学气相渗透，聚合物浸渍/热解，液体硅渗透或浆料浸渍/热压）制造的，它们各自都有优点和缺点，下面将简要讨论。 SiC基复合材料在纤维类型（SiC基纤维的碳纤维，例如Si-CO，SiC + C或准化学计量SiC增强材料），相间（热碳或六角BN）方面都是高度可定制的材料。如（PyC-SiC）_n或（BN-SiC）_n多层中间相），基体（简单SiC或具有改进的抗氧化性的基体，例如自修复基体）和涂层（SiC或工程多层涂层）。 SiC基复合材料在先进航空发动机（后燃烧器热段），电力/蒸汽热电联产燃气轮机（燃烧室）和等离子室内壁核聚变反应中的应用潜力，它们全部对应于讨论了非常恶劣的条件。

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