Fabrication of CNT-SiC/SiC composites by electrophoretic deposition

König K, Novak S, Ivekovic A, Rade K, Meng D, Boccaccini AR, Kobe S (2010)

Publication Type: Journal article

Publication year: 2010

Journal

Journal of the European Ceramic Society Elsevier

Publisher: Elsevier

Book Volume: 30

Pages Range: 1131-1137

DOI: 10.1016/j.jeurceramsoc.2009.07.027

Abstract

Due to the outstanding mechanical and thermal properties of carbon nanotubes (CNTs), they are considered suitable reinforcement for structural materials. In this study, for the first time, electrophoretic deposition (EPD) was used to deposit (multi-walled) CNTs onto SiC fibres (SiCf) to form an effective CNT interphase layer for SiCf/SiC composites. This deposition was followed by electrophoretic infiltration of the CNT-coated SiC fibre mats with SiC powder to fabricate a new CNT-SiC-fibre-reinforced SiC-matrix (SiCf/SiC) composite for fusion applications. In these EPD experiments, a commercial aqueous suspension of negatively charged CNTs and an optimized aqueous suspension of negatively charged SiC particles were used. The CNT-coatings on the SiC fibres were firm and homogenous, and uniformly distributed nanotubes were observed on the fibre surfaces. In a following step of EPD, a thick SiC layer was formed on the fibre mat when the CNT-coated SiC fibres were in contact with the positive electrode of the EPD cell; however, spaces between the fibres were not fully filled with SiC. Conversely, when CNT-coated SiC fibres were isolated from the electrode, the SiC particles were able to gradually fill the fibre mat resulting in relatively high infiltration, which leads to dense composites. © 2009 Elsevier Ltd. All rights reserved.

Authors with CRIS profile

Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Jožef Stefan Institute SI Slovenia (SI) Imperial College London / The Imperial College of Science, Technology and Medicine GB United Kingdom (GB)

How to cite

APA:

König, K., Novak, S., Ivekovic, A., Rade, K., Meng, D., Boccaccini, A.R., & Kobe, S. (2010). Fabrication of CNT-SiC/SiC composites by electrophoretic deposition. Journal of the European Ceramic Society, 30, 1131-1137. https://dx.doi.org/10.1016/j.jeurceramsoc.2009.07.027

MLA:

König, Katja, et al. "Fabrication of CNT-SiC/SiC composites by electrophoretic deposition." Journal of the European Ceramic Society 30 (2010): 1131-1137.

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