Electrical contact performance of various electro-deposited graphene reinforced silver-based nanocomposites
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and
Abstract
Silver and silver(Ag)-graphene(Gr) nanocomposite coatings were prepared via direct current, pulse current and pulse reverse current on copper electrical contacts for evaluating electrical contact performance. The effects of the addition of Gr and current types on microstructure, crystallographic orientation, mechanical properties and electrical contact performance were investigataed via a scanning electron microscope, an X-Ray diffractometer, microhardness test device and an electrical contact test device, respectively. The addition of Gr changed the Ag surface morphology and decreased grain sizes. Moreover, the addition of Gr significantly improved arc erosion resistivity and decreased the average working temperature during the contact test. In addition, pulse current and pulse reverse current provided a significant improvement in microhardness and electrical contact erosion resistance owing to increased embedded graphene amounts in silver layers.
© 2020 by Walter de Gruyter Berlin/Boston
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Articles in the same Issue
- CONTENTS
- Materials Testing
- FATIGUE TESTING
- Influence of specimen diameter size on the deformation behavior and short-term strength range of an aluminum alloy
- Influence of nozzle temperature and volumetric filling on the mechanical properties of 3D-printed PEEK
- Investigation on endurance evaluation of a portal crane: experimental, theoretical and finite element analysis
- Butterfly optimization algorithm for optimum shape design of automobile suspension components
- Optimal design of automobile structures using moth-flame optimization algorithm and response surface methodology
- Efficient synthesis of porous graphitic carbon nitride nanosheets with different precursors via thermal condensation
- The spotted hyena optimization algorithm for weight-reduction of automobile brake components
- Mechanical behavior of pressurized composite pipes made of various materials
- Mechanical properties and wear-corrosion resistance of a new compound extrusion process for magnesium alloy AZ61
- Electrical contact performance of various electro-deposited graphene reinforced silver-based nanocomposites
- Effects of boric acid addition and sintering temperature on the thermal conductivity of perlitebased insulation materials
- Determination of stress concentration factors for shafts under tension
- Measurement of tensile mechanical properties of fiber reinforced plastic rebars by 3D digital image correlation
- Influence of various structural micro-defects on the fracture of cyclically stressed components revisited
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