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


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
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


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


  • TEM and Raman Spectroscopy
  • XRD


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