Journal
SCRIPTA MATERIALIA
Volume 124, Issue -, Pages 21-25Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2016.06.023
Keywords
Carbon nanotubes; Ceramic matrix composites; Electrical properties; Scanning electron microscopy; Alignment
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Funding
- Office of Naval Research Young Investigator Program [N00014-11-1-0706]
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Aligned carbon nanotube (CNT) sheets reinforced with silicon carbonitride were prepared by the infiltration and pyrolysis of liquid polysilazane into mechanically stretched CNTs. The resultant nanocomposites contained a high volume fraction of CNTs (60 vol%), and due to alignment, reached an electrical conductivity of up to 22 x 10(5) S m(-1). The electrical conductivity was anisotropic based upon the CNT alignment and changed from 3.3 to 9.2 after the pyrolysis process. The high electrical conductivity of the nanocomposites contributes to their potential application in electromagnetic interference shielding. (C) 2016 Elsevier Ltd. All rights reserved.
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