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首页> 外文期刊>Corrosion science >Oxidation protection of C/C composites with in situ bamboo-shaped SiC nanowire-toughened Si-Cr coating
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Oxidation protection of C/C composites with in situ bamboo-shaped SiC nanowire-toughened Si-Cr coating

机译：原位竹形SiC纳米线增韧Si-Cr涂层对C / C复合材料的氧化保护

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摘要

An in situ bamboo-shaped SiC nanowire-toughened Si-Cr coating was prepared on the carbon/carbon composites by pack cementation and heat treatment with ferrocene as the catalyst. The microstructures and oxidation behavior of the coating were investigated. Results showed that the coating had a dense microstructure, without the penetrating microcracks, which was primarily attributed to the unusual toughening effect of the bamboo-shaped nanowires resulting from the mechanical interlocking between the nodes and the matrix. The coating exhibited good oxidation protection ability at high temperature. The weight gain of the samples was 0.79% after isothermal oxidation at 1500 ℃ for 185 h.
机译：通过填充胶结并用二茂铁作为催化剂对碳/碳复合材料制备了原位竹形SiC纳米线增韧的Si-Cr涂层。研究了涂层的微观结构和氧化行为。结果表明，涂​​层具有致密的微观结构，没有穿透的微裂纹，这主要归因于节点与基体之间的机械互锁导致的竹形纳米线的异常增韧作用。该涂层在高温下表现出良好的抗氧化能力。在1500℃等温氧化185 h后，样品的增重为0.79％。

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  • 来源
    《Corrosion science》 |2013年第9期|419-423|共5页
  • 作者

    Hejun Li; Xi Yang; Yanhui Chu; Lu Li; Qiangang Fu; Lehua Qi;

  • 作者单位

    State Key Laboratory of Solidification Processing, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China;

    State Key Laboratory of Solidification Processing, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China;

    State Key Laboratory of Solidification Processing, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China;

    State Key Laboratory of Solidification Processing, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China;

    State Key Laboratory of Solidification Processing, Carbon/Carbon Composites Research Center, Northwestern Polytechnical University, Xi'an 710072, China;

    School of Mechatronic Engineering, Northwestern Polytechnical University, Xi'an 710072, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Ceramic matrix composites; C. High temperature corrosion; C. Oxidation;

    机译：A.陶瓷基复合材料;C.高温腐蚀;C.氧化;

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