期刊
MATERIALS & DESIGN
卷 41, 期 -, 页码 344-348出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2012.05.014
关键词
Composites; Metal matrix; Sintering; Thermal; Mechanical
资金
- Ministry of Education of China [707007]
- Beijing Municipal Commission of Education of China [2008100071601Y]
- Program for New Century Excellent Talents in University [NCET-10-0227]
Aluminum matrix composites reinforced with 0-5.0 wt.% multi-walled carbon nanotubes (MWNTs) were produced by spark plasma sintering (SPS). The composites with <= 1.0 wt.% MWNTs additions had higher thermal conductivity than the pure aluminum produced by the same SPS processing. The MWNTs/Al composites exhibited the maximum thermal conductivity of 199 W/m/K at 0.5 wt.% MWNTs. The enhancement of thermal conductivity is supported by the measured tensile strength. The MWNTs/Al composites exhibited the maximum tensile strength of 130 MPa also at 0.5 wt.% MWNTs. The contribution of carbon nanotubes to thermal conductivity of the composites was demonstrated by theoretical analysis. The results show that MWNTs reinforced aluminum matrix composite is a potential material for high thermal conductivity applications. (C) 2012 Elsevier Ltd. All rights reserved.
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