Deposición de Ni-B por vía química para aplicaciones de contacto eléctrico

C. T. Dervos; P. Vassiliou; J. Novakovic

doi:10.3989/revmetalm.2005.v41.iExtra.1031

Electroless Ni-B plating for electrical contact applications

Authors

C. T. Dervos School of Electrical and Computer Engineering, National Technical University of Athens
P. Vassiliou School of Chemical Engineering, National Technical University of Athens
J. Novakovic School of Electrical and Computer Engineering, National Technical University of Athens

DOI:

https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1031

Keywords:

Ni-B electroless plating, Heat treatment, Electrical contacts

Abstract

Electroless Ni-B plating has been tried on steel substrate in an effort to employ low-cost starting materials for electrical contacts or connectors. By selected conditions of heat treatment in a high vacuum environment the plating can acquire Cr-equivalent hardness without the effluents of the hard chromium plating process. The surfaces were characterized under scanning electron microscope and by XRD. The fabricated materials were tested under corrosion conditions by polarization measurements. Semispherical nickel plated steel joints were tested in a computer controlled contact make-break apparatus, under simultaneous application of a mechanical and a low-voltage electrical load for 20,000 cycles. After heat treatment the plating acquires a crystalline structure with very good adhesion to the substrate material. Corrosion decreases and increased hardness is obtained. The surface is also characterized by good electrical properties during aging accelerated tests.

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Published

2005-12-17

How to Cite

Dervos, C. T., Vassiliou, P., & Novakovic, J. (2005). Electroless Ni-B plating for electrical contact applications. Revista De Metalurgia, 41(Extra), 232–238. https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1031

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Issue

Vol. 41 No. Extra (2005)

Section

Articles

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