Highly conductive nanostructured Cu-Cr-MWCNT composite

N. D.H. Munroe, P. K.S. Gill, S. Amruthaluri, W. Haider

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Contact materials for medium voltage and high current Vacuum Circuit Breakers (VCB) are required to possess excellent electrical and thermal conductivity, as well as superior mechanical strength. Cu-Cr alloys reinforced with Multi-walled Carbon Nanotubes (MWCNT) appear to be an excellent candidate for this application. A powder metallurgical technique was used to prepare high density compacts of Cu-Cr composite with varying percentages of MWCNT. The morphology of the composites was studied by employing SEM/EDS, XRD, TEM and Raman Spectroscopy. The electrical conductivity and Vickers hardness of the compacts were also determined. A substantial increase in the electrical conductivity and strength of the composite were attained upon the addition of 5-16 % of volume fraction MWCNT.

Original languageEnglish
Title of host publicationMaterials Science and Technology Conference and Exhibition MS and T'08
Pages2309-2318
Number of pages10
StatePublished - 2008
EventMaterials Science and Technology Conference and Exhibition, MS and T'08 - Pittsburgh, PA, United States
Duration: Oct 5 2008Oct 9 2008

Publication series

NameMaterials Science and Technology Conference and Exhibition, MS and T'08
Volume4

Conference

ConferenceMaterials Science and Technology Conference and Exhibition, MS and T'08
Country/TerritoryUnited States
CityPittsburgh, PA
Period10/5/0810/9/08

Keywords

  • SEM/EDS
  • TEM and Raman Spectroscopy
  • XRD

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