| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7983986 | Materials Science and Engineering: A | 2013 | 7 Pages |
Abstract
Copper (Cu) matrix composites reinforced with 0.2, 5 and 10Â vol% single wall carbon nanotubes (SWCNT) and 5 and 10Â vol% multi-wall carbon nanotubes (MWCNT) were processed by high energy milling of pure copper powder with carbon nanotubes (CNTs) and subsequent consolidation by vacuum hot pressing. Microstructural observations of the sintered composites revealed equiaxed twinned microstructure for 0.2Â vol% SWCNT composite and elongated grain structure, with CNT layers in between, in composites having higher CNTs content. The porosity in the composites was associated with CNT layers. The distribution of CNTs was found to be different in axial and transverse directions. Significant improvement in hardness of Cu-SWCNT composite was observed with increase in CNTs content. Whereas, in case of MWCNT composite, hardness reduced for 10Â vol% CNT composites. Compression strength of the SWCNT samples was found to be higher than the MWCNT reinforced samples.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
A.K. Shukla, Niraj Nayan, S.V.S.N. Murty, S.C. Sharma, Prathap Chandran, Srinivasa R. Bakshi, Koshy M. George,