J. Mater. Sci. Technol. ›› 2013, Vol. 29 ›› Issue (8): 711-714.DOI: 10.1016/j.jmst.2013.05.015

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Increasing the Tensile Property of Unidirectional Carbon/Carbon Composites by Grafting Carbon Nanotubes onto Carbon Fibers by Electrophoretic Deposition

Qiang Song, Kezhi Li, Hejun Li, Qiangang Fu   

  1. State Key Laboratory of Solidi?cation Processing, Northwestern Polytechnical University, Xi’an 710072, China
  • Received:2013-01-22 Revised:2013-03-06 Online:2013-08-30 Published:2013-07-17
  • Contact: Kezhi Li
  • Supported by:

    Program of Introducing Talents of Discipline to Universities (No. B08040) and the Ph.D. Thesis Innovation Fund of NWPU (No. cx201214), the Key Grant Project of Chinese Ministry of Education (No. 313047) and the National Natural Science Foundation of China (Nos. 51275417, 50832004 and 51202194).

Abstract:

Although in-situ growing carbon nanotubes (CNTs) on carbon fibers could greatly increase the matrix-dominated mechanical properties of carbon/carbon composites (C/Cs), it always decreased the tensile strength of carbon fibers. In this work, CNTs were introduced into unidirectional carbon fiber (CF) preforms by electrophoretic deposition (EPD) and they were used to reinforce C/Cs. Effects of the content of CNTs introduced by EPD on tensile property of unidirectional C/Cs were investigated. Results demonstrated that EPD could be used as a simple and efficient method to fabricate carbon nanotube reinforced C/Cs (CNT–C/Cs) with excellent tensile strength, which pays a meaningful way to maximize the global performance of CNT–C/Cs.

Key words: Carbon nanotube, Electrophoretic deposition, Carbon fiber, Carbon composite