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Monday, June 23, 2008 - 2:00 PM

Effect of Addition of Ni and Ag on Cu-CNT Composite's Electrical Conductivity

S. Amruthaluri, N. D. Munroe, W. Haider, Florida International University, Miami, FL; P. K. S. Gill, Florida International University, miami, FL

Copper-Carbon nanotube (Cu-CNT) composites are of great interest due to their wide range of applications in electrical appliances. In recent years the researchers have shown lot of interest in this composite. Powder metallurgy technique was used to prepare Cu-CNT composite with addition of Silver (Ag) and Nickel (Ni). Different compositions were prepared for comparative analysis. Enhancement in electrical conductivity of this composite was observed by using four probe method. Scanning Electron Microscopy (SEM) and X-ray mapping showed homogenous mixing of CNTs in the composite. This composite overcomes the limitations of interfacial bonding in Cu-CNT matrix and homogenous distribution of CNTs.  Our investigation demonstrated that addition of Ag and Ni resinates changes the morphology of the composite by increasing the interfacial bonding between Cu and CNT.

Summary: Copper-Carbon nanotube (Cu-CNT) composites have great implications in electrical appliances. Composite was prepared with the addition of Ag and Ni to Cu-CNT to enhance the electrical conductivity of the composite.