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	Electro-mechanical and thermal properties of multiwalled carbon nanotube reinforced alumina composites
	Ahmad, K. ; Wei Pan ; Chunlei Wan
	2010-05-10 ; 2010-05-10
关键词	Experimental/ alumina carbon nanotubes electrical conductivity electromechanical effects fracture toughness nanocomposites nanotechnology particle reinforced composites plasma materials processing sintering thermal conductivity/ electro-mechanical properties thermal properties multiwalled carbon nanotube reinforced composites spark plasma sintering electrical conductivity thermal conductivity fracture toughness interfacial thermal barrier C-Al/sub 2/O/sub 3// A8116 Methods of nanofabrication and processing A8120E Powder techniques, compaction and sintering A5275R Plasma applications in manufacturing and materials processing A6220M Fatigue, brittleness, fracture, and cracks A8140N Fatigue, embrittlement, and fracture A6825 Mechanical and acoustical properties of solid surfaces and interfaces A8120V Preparation of fullerenes and fullerene-related materials, intercalation compounds, and diamond A7360T Electrical properties of fullerenes and related materials (thin films/low-dimensional structures) A6148 Structure of fullerenes and fullerene-related materials/ C-Al2O3/int Al2O3/int Al2/int O3/int Al/int C/int O/int Al2O3/bin Al2/bin O3/bin Al/bin O/bin C/el
中文摘要	Multi-walled carbon nanotube (MWNT) reinforced alumina composites with different MWNT contents (5 and 10 vol%) were fabricated by spark plasma sintering. The room temperature dc electrical conductivity, thermal conductivity, and mechanical properties were investigated. Results showed that the electrical conductivity has improved around twelve orders of magnitude by addition of 5 vol% of MWNT. The fracture toughness changed from 3.2 to 4.4 MPa m/sup 1/2/ with 39% improvement over monolithic AI/sub 2/O/sub 3/. The thermal conductivity decreased with increase of MWNT contents. The low values of thermal conductivity suggest that interfacial thermal barrier play an important role in determining these properties. MWNT can be used to improve concurrently electrical, mechanical properties of AI/sub 2/O/sub 3/ but with lower values of thermal properties.
语种	英语 ; 英语
出版者	Trans Tech Publications Ltd. ; Switzerland
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/21677]
专题	清华大学
推荐引用方式 GB/T 7714	Ahmad, K.,Wei Pan,Chunlei Wan. Electro-mechanical and thermal properties of multiwalled carbon nanotube reinforced alumina composites[J],2010, 2010.
APA	Ahmad, K.,Wei Pan,&Chunlei Wan.(2010).Electro-mechanical and thermal properties of multiwalled carbon nanotube reinforced alumina composites..
MLA	Ahmad, K.,et al."Electro-mechanical and thermal properties of multiwalled carbon nanotube reinforced alumina composites".(2010).

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