Fabrication of copper–TiC–graphite hybrid metal matrix composites through microwave processing

The significant requirements such as wear resistance and better tribological properties in addition to good electrical conductivity necessitate the development of copper-based advanced metal matrix composites for electrical sliding contact applications. Though the addition of graphite to copper matr...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2010-05, Vol.48 (5-8), p.645-653
Main Authors: Chandrakanth, Reddy G., Rajkumar, K., Aravindan, Sivanandam
Format: Article
Language:English
Subjects:
Aluminum oxide
CAE) and Design
Computer-Aided Engineering (CAD
Copper
Density
Electric contacts
Electrical resistivity
Engineering
Graphite
Hybrid composites
Industrial and Production Engineering
Lubrication
Mechanical Engineering
Mechanical properties
Media Management
Metal matrix composites
Original Article
Photomicrographs
Self lubrication
Silicon carbide
Sintering
Sliding contact
Temperature
Titanium carbide
Tribology
Wear resistance
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Summary:The significant requirements such as wear resistance and better tribological properties in addition to good electrical conductivity necessitate the development of copper-based advanced metal matrix composites for electrical sliding contact applications. Though the addition of graphite to copper matrix induces self-lubricating property, the strength of the composite reduces. The improvement in the strength of the composite can be achieved by reinforcing harder ceramic particles such as SiC, TiC, and Al 2 O 3 . In this paper, the development of hybrid composite of copper metal matrix reinforced with TiC and graphite particles through microwave processing was investigated. The effects of TiC (5, 10, and 15 vol.%) and graphite (5 and 10 vol.%) reinforcements on physical and mechanical properties of microwave-sintered copper–TiC–graphite hybrid composites are discussed in detail. Micrographs show the uniform distribution of reinforcements in copper matrix. Microwave-sintered composites exhibited higher relative density, sintered density, and hardness compared with conventionally sintered ones.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-009-2474-0