The Proceedings of the Materials and processing conference
Online ISSN : 2424-287X
2010.18
Conference information
107 Control of Microstructure and Electrical Conductivity of CNT-dispersed Si_3N_4 Ceramics by Double Percolation
Junichi TATAMISara YOSHIOTomohiro YAMAKAWAToru WAKIHARAKatsutoshi KOMEYATakeshi MEGURO
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CONFERENCE PROCEEDINGS FREE ACCESS

Pages _107-1_-_107-3_

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Abstract
CNT dispersed Si_3N4_ ceramics with double percolation structure were prepared by using granules of Si_3N_4 powder with and without CNTs followed by densification through spark plasma sintering process. Although the single percolation sample having 0.5wt% CNT was insulator because it was below percolation threshold, the electrical conductivity was showen in the double percolation sample having 0.5wt%. Consequently, it was shown that the electrical conductivity of CNT dispersed Si_3N_4 was able to be controlled by double percolation.
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© 2010 The Japan Society of Mechanical Engineers
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