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The increase in temperature caused by Joule heat is a very important concern to the electrical interconnections. The maximum temperature of contacts in these interconnections is not easily measurable, but can be calculated by the temperature–voltage relation, which is also called Kohlrausch’s equation. In this paper, we build a finite-element model of spherical copper contact pairs for thermal–electrical...
Using an electro-dynamic-shaker-based test setup, experiments were performed on gold-plated contacts under a variety of fretting conditions, including different vibration frequencies, vibration amplitudes and different environment temperatures. The variations in contact resistance with fretting cycles are recorded explicitly. The fretted surface is examined using a scanning electron microscope, energy-dispersive...
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