Laser treatment for corrosion prevention of electrical contact gold coating

Georges, Cécile; Sánchez, Hernán; Semmar, Nadjib; Boulmer‐Leborgne, C.; Perrin, C.; Simon, D.

doi:10.1016/s0169-4332(01)00605-5

Cited by 12 publications

(7 citation statements)

References 3 publications

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“…Corrosion aggregates were always very numerous in the low fluence treated zones (for more details, please see Ref. [6] corresponding to a previous study). Samples treated at fluences higher than 750 mJ/cm 2 exhibited more promising corrosion behavior.…”

Section: Effect Of Laser Fluencementioning

confidence: 78%

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Effect of pulsed laser parameters on the corrosion limitation for electric connector coatings

Georges

Semmar

Boulmer‐Leborgne

2006

Optics and Lasers in Engineering

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Section: Effect Of Laser Fluencementioning

confidence: 78%

“…One should conclude that lower fluences (o 700 mJ/cm 2 ) are necessary for treating these samples. However, in this case (high roughness and low fluence) no corrosion improvement was achieved as shown previously [6]. Hence polished samples (R a o0:1 mm) will be considered in the following part.…”

Section: Effect Of Laser Fluencementioning

confidence: 79%

Effect of pulsed laser parameters on the corrosion limitation for electric connector coatings

Georges

Semmar

Boulmer‐Leborgne

2006

Optics and Lasers in Engineering

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“…The one dimension unsteady heat equation is resolved using the finite differences method. The related boundary conditions were already published in reference [3]. Considering the gold reflectivity, the optical depth is close to 10 nm, when the thermal penetration is about 1000 nm for 25 ns pulse duration.…”

Section: Numerical Simulation Of the Melting Kineticsmentioning

confidence: 92%

Laser treatment for corrosion prevention

et al. 2002

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The laser surface treatment is applied to a multilayer component (copper alloy plated with two thin coatings, nickel and gold). The aim of the study is to melt the whole gold layer (thick < 1 jim) without damaging the underlying layers. The gold melting must be homogeneous and the process must be fast to avoid heat diffusion in the depth. For these reasons, the laser has been chosen for surface treatment.The application of this laser surface treatment is to improve the corrosion resistance of electrical contacts due to columnar microstructure of gold deposited by electrolytic process. Tests of corrosion are carried out in the humid synthetic air containing low contents of pollutants (NO2, SO2 and Cl2).An numerical study has been realized to find the best laser conditions to melt the whole gold layer.

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“…Laser melting of the coatings consolidates the porosity and improves their performance. Examples of this are Ni-W-P coatings [43] and gold coatings [44].…”

Section: Hybrid Coatingsmentioning

confidence: 99%

Laser Materials Processing for Improved Corrosion Performance

Cottam¹

2012

Environmental and Industrial Corrosion - Practical and Theoretical Aspects

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Laser treatment for corrosion prevention of electrical contact gold coating

Cited by 12 publications

References 3 publications

Effect of pulsed laser parameters on the corrosion limitation for electric connector coatings

Effect of pulsed laser parameters on the corrosion limitation for electric connector coatings

Laser treatment for corrosion prevention

Laser Materials Processing for Improved Corrosion Performance

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