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Overview of the brazing of carbon-carbon composites
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Department of Mechanical Engineering, Tsinghua University

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International S&T Cooperation Program of China (Grant nos. 2016YFE0201300)

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    Abstract:

    Since the individual use of C/C composite is limited, the joining with other materials becomes a key technology in its application. Brazing is one kind of joining method that has been studied most, maturest and most widely used for C/C composite in recent decades. Nonetheless, there are still many deficiencies in the brazing of C/C composites because of the characteristic of the composite itself, which cannot meet the needs of specific conditions. The current brazing situation of C/C composite is reviewed in this paper. The difficulties of joining C/C composites and metals, the bonding systems that had been studied, and the joining mechanisms are included. The brazing methods and basic joining mechanisms of C/C composite are summarized emphatically, mainly including: direct brazing with active filler materials, using micro-nano particles reinforced or stress buffer layer added composite filler materials, surface modifying of C/C composite, and changing the interface structure, and so on. The current research breakthroughs and remaining problems are analyzed. The feasibility measures of brazing C/C composite are analyzed and summarized to provide basic reference for subsequent research on the brazing of C/C composites and the improvement of joint performance.

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[Long Weimin, Li Shengnan, Shen Yuanxun, Du Dong, Zhong Sujuan, Wang Qi, Zhang Lei. Overview of the brazing of carbon-carbon composites[J]. Rare Metal Materials and Engineering,2020,49(8):2683~2690.]
DOI:10.12442/j. issn.1002-185X.20190495

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History
  • Received:June 12,2019
  • Revised:August 24,2019
  • Adopted:September 06,2019
  • Online: September 27,2020
  • Published: