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Mechanical and thermal properties of carbon nanotube/aluminum composites consolidated by spark plasma sintering
Highlights ► MWNTs/Al composites have been produced by spark plasma sintering. ► The highest tensile strength of 130MPa was achieved at 0.5wt.% MWNTs. ► The highest thermal conductivity of 199W/m/K was achieved at 0.5wt.% MWNTs. ► The enhanced mechanical and thermal properties are due to MWNTs bridging.
Abstract Aluminum matrix composites reinforced with 0–5.0wt.% multi-walled carbon nanotubes (MWNTs) were produced by spark plasma sintering (SPS). The composites with ⩽1.0wt.% 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 199W/m/K at 0.5wt.% MWNTs. The enhancement of thermal conductivity is supported by the measured tensile strength. The MWNTs/Al composites exhibited the maximum tensile strength of 130MPa also at 0.5wt.% 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.
Mechanical and thermal properties of carbon nanotube/aluminum composites consolidated by spark plasma sintering
Highlights ► MWNTs/Al composites have been produced by spark plasma sintering. ► The highest tensile strength of 130MPa was achieved at 0.5wt.% MWNTs. ► The highest thermal conductivity of 199W/m/K was achieved at 0.5wt.% MWNTs. ► The enhanced mechanical and thermal properties are due to MWNTs bridging.
Abstract Aluminum matrix composites reinforced with 0–5.0wt.% multi-walled carbon nanotubes (MWNTs) were produced by spark plasma sintering (SPS). The composites with ⩽1.0wt.% 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 199W/m/K at 0.5wt.% MWNTs. The enhancement of thermal conductivity is supported by the measured tensile strength. The MWNTs/Al composites exhibited the maximum tensile strength of 130MPa also at 0.5wt.% 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.
Mechanical and thermal properties of carbon nanotube/aluminum composites consolidated by spark plasma sintering
Wu, Jianhua (author) / Zhang, Hailong (author) / Zhang, Yang (author) / Wang, Xitao (author)
2012-05-08
5 pages
Article (Journal)
Electronic Resource
English
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