Thermal Properties of Carbon Nanotubes Reinforced Aluminum-Copper Matrix Nanocomposites

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Carbon nanotubes (CNTs) have been much attractive additives of various matrix composites due to their extraodrinary mechanical, electric, thermal properties, one dimensional shape and small size. In this research, the thermal properties of CNTs reinforced Al-Cu matrix nanocomposites were investigated. CNT/Al-Cu nanocomposites with 0-4 vol.% of CNTs were prepared by mixing of CNT/Cu powders and Al powders by high energy ball mill process followed by spark plasma sintering. During the high energy ball milling and sintering, Cu particles are alloyed in the Al to form Al-Cu alloy matrix. The CNT/Al-Cu nanocmposites show a microstructure of homogeneous dispersion of CNTs in the Al-Cu matrix. Despite high thermal conductivity of CNTs, the thermal conductivity of CNT/Al-Cu nanocomposites decreased as increasing the content of CNTs because of the interface thermal resistance between CNTs and Al-Cu matrix. The coefficient of thermal expansion (CTE) also decreased due to homogeneous dispersion and low CTE value of CNTs
Publisher
AMER SCIENTIFIC PUBLISHERS
Issue Date
2016-11
Language
English
Article Type
Article
Keywords

COMPOSITES; CONDUCTIVITY; EXPANSION

Citation

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.16, no.11, pp.12013 - 12016

ISSN
1533-4880
DOI
10.1166/jnn.2016.13635
URI
http://hdl.handle.net/10203/214822
Appears in Collection
MS-Journal Papers(저널논문)
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