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首页> 外文期刊>Journal of the European Ceramic Society >Advanced silicon oxycarbide-carbon composites for high temperature resistant friction systems
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Advanced silicon oxycarbide-carbon composites for high temperature resistant friction systems

机译：高耐耐氧化硅碳复合材料，用于高温耐摩擦系统

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摘要

Highly densified bulk silicon oxycarbide-carbon composites (SiOC-C) reinforced with carbon black (CB), active carbon (AC) or graphite (GR) have been obtained through spark plasma sintering. Structural, mechanical, tribological and thermal properties of SiOC-C composites were researched. The SiOC-C composites reinforced with GR and CB tended to give beta-SiC. Wear behavior at room temperature under dry conditions was determined by using a ball on plate configuration and stainless steel balls as counter bodies. The coefficient of friction of the composites decreases down to 40% and the wear rate is also reduced by 1 in the order of magnitude when compared to SiOC. A graphite-like carbon tribolayer is probably formed in the composites; this layer could be responsible for the observed enhancement of such tribological properties. These SiOC-C composites are promising candidates for use in harsh enviroments where an adequate tribological response is required at high temperatures. (C) 2016 Elsevier Ltd. All rights reserved.
机译：通过火花等离子体烧结获得高度致密的散装硅氧化硅 - 碳复合材料（SIOC-C），用炭黑（CB），活性炭（AC）或石墨（GR）获得。研究了SioC-C复合材料的结构，机械，摩擦学和热性质。用GR和Cb加固的Sioc-C复合材料倾向于给予β-SiC。通过在板材配置和不锈钢球作为柜台结构上使用球在干燥条件下在干燥条件下磨损行为。与SIOC相比，复合材料的摩擦系数降低至40％，磨损率也减少1幅增加1。石墨般的碳纤维层可能形成在复合材料中;该层可能负责观察到这种摩擦学特性的增强。这些SIOC-C复合材料是有希望的候选者，用于苛刻的环境中，在高温下需要足够的摩擦学响应。 （c）2016 Elsevier Ltd.保留所有权利。

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