Processing and properties of carbon nanotubes-nano-SiC ceramic

Carbon nanotubes–nano-SiC ceramic has been fabricated by the hot-press method. The preparation steps involved the use of dispersing nano-SiC powders and carbon nanotubes in butylalcohol using an ultrasonic shaker. The reasonable relative density of about 95% has been achieved by hot-pressing at 2273...

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Bibliographic Details
Published in:Journal of materials science 1998, Vol.33 (21), p.5243-5246
Main Authors: MA, R. Z, WU, J, WEI, B. Q, LIANG, J, WU, D. H
Format: Article
Language:English
Subjects:
Applied sciences
Bend strength
Building materials. Ceramics. Glasses
Carbon
Carbon nanotubes
Ceramic industries
Ceramics
Chemical industry and chemicals
Exact sciences and technology
Fracture toughness
Materials science
Miscellaneous
Silicon carbide
Technical ceramics
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Summary:Carbon nanotubes–nano-SiC ceramic has been fabricated by the hot-press method. The preparation steps involved the use of dispersing nano-SiC powders and carbon nanotubes in butylalcohol using an ultrasonic shaker. The reasonable relative density of about 95% has been achieved by hot-pressing at 2273 K (at 25 MPa in Ar for 1 h). The three-point bending strength and fracture toughness of the composite has about 10% increment over monolithic SiC ceramic which was fabricated under the same process. The reasons for the increment are the strengthening and toughening role of carbon nanotubes occuring in the matrix.
ISSN:0022-2461
1573-4803
DOI:10.1023/a:1004492106337