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RESEARCH PRODUCT

Enhancement of pulsed laser removal of metal oxides by electrochemical control

O. YavaşRoland OltraOlivier Kerrec

subject

Materials scienceElectrolytic cellbusiness.industryOxideAnalytical chemistryGeneral ChemistryElectrolyteLaserElectrochemistryCathodic protectionlaw.inventionchemistry.chemical_compoundchemistrylawOptoelectronicsGeneral Materials ScienceIrradiationSpectroscopybusiness

description

Pulsed laser irradiation of oxidized metallic surfaces in an electrolytic cell under proper voltage conditions is demonstrated to be a promising new approach for effective removal of oxide films. Systematic measurements on simulated corrosion-product films by optical reflectance profile and energy dispersive X-ray spectroscopy are used to study the physical mechanisms of this novel phenomenon, the physical conditions for its observation and its possible generality. It was observed that the utilization of a basic electrolyte solution and the imposition of a certain cathodic potential prior to laser irradiation is an essential requirement for a high removal efficiency. This new technique has potential applications in metallurgy, semiconductor fabrication technology and decontamination of nuclear power plans and is suitable for maskless patterning of oxidized surfaces.

https://doi.org/10.1007/bf01567320