Structural and Electrical Properties of Copper-Nickel-Aluminum Alloys Obtained by Conventional Powder Metallurgy Method

Abstract:

This work looked for to search out systematically, in scale of laboratory, copper-nickel-aluminum alloys (Cu-Ni-Al) with conventional powder metallurgy processing, in view of the maintenance of the electric and mechanical properties with the intention of getting electric connectors of high performance or high mechanical damping. After cold uniaxial pressing (1000 kPa), sintering (780oC) and suitable homogenization treatments (500oC for different times) under vacuum (powder metallurgy), the obtained Cu-Ni-Al alloys were characterized by optical microscopy, electrical conductivity, Vickers hardness. X rays powder diffraction data were collected for the sintered samples in order to a structural and microstructural analysis. The comparative analysis is based on the sintered density, hardness, macrostructures and microstructures of the samples.

• Periodical: Materials Science Forum (Volumes 660-661)
• Pages: 41-45
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.660-661.41
• Online since: October 2010
• Authors: Waldemar Alfredo Monteiro, Juan Alfredo Guevara Carrió, C.R. Da Silveira, E. Vitor, S.J. Buso
• Keywords: Copper-Nickel-Aluminum Alloys, Electrical Properties, Mechanical Property, Microstructure, Powder Metallurgy (PM), Structural Characterisation

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DOI: 10.1016/0036-9748(83)90483-0

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