Document Type
Thesis
Degree
Master of Science (MS)
Major/Program
Materials Science and Engineering
First Advisor's Name
Norman Munroe
First Advisor's Committee Title
Committee Chair
Second Advisor's Name
Arvind Agarwal
Third Advisor's Name
Kinzy Jones
Date of Defense
3-27-2008
Abstract
The matrices in which Multi Walled Carbon Nanotubes (MWCNTs) are incorporated to produce composites with improved electrical properties can be polymer, metal or metal oxide. Most composites containing CNTs are polymer based because of its flexibility in fabrication. Very few investigations have been focused on CNT-metal composites due to fabrication difficulties, such as achievement of homogeneous distribution of MWCNTs and poor interfacial bonding between MWCNTs and the metal matrix. In an effort to overcome poor interfacial bonding for the Cu - MWCNT composite, silver (Ag) and nickel (Ni) resinates have been incorporated in the ball milling stage. Composites of MWCNT (16, 12, and 8 Vol %) - Cu+Ag+Ni were pelleted at 20,000 psi (669.4 Mpa) and sintered at 950 °C. The electrical conductivity results measured by four probe meter showed that the conductivity decreases with increase in the porosity. Moreover from these results it can also be stated that an addition of optimum value of (12 Vol %) MWCNT leads to high electrical conductivity (9.26E+07 s-m"), which is 50% greater than the conductivity of Cu. It is anticipated that the conductivity can be increased substantially with hot isostatic pressing of the pellet.
Identifier
FI14032310
Recommended Citation
Amruthaluri, Sushma, "Synthesis of copper carbon nanotube composite and its electrical conductivity measurement" (2008). FIU Electronic Theses and Dissertations. 1283.
https://digitalcommons.fiu.edu/etd/1283
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