Plasma Electrolytic Oxidation Coatings on Lightweight Metals

Li, Qingbiao; Liang, Jun; Wang, Qing

doi:10.5772/55688

Cited by 39 publications

(39 citation statements)

References 58 publications

(66 reference statements)

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“…The PEO coating surface has fine scale porosity, crack, and dimple microstructure in sample C, D, and E. Qingbiao Li et al reported the molten oxide and gas bubbles from plasma discharge channels was main reason to create micro pore and thermal stress from rapid solidification of the molten oxide in electrolyte caused crack formation [5]. This microstructure on the surface of the PEO coatings can be defect aspect of adhesion with Ni-Al 2 O 3 catalysis.…”

Section: Resultsmentioning

confidence: 99%

Aluminum Oxide Formation On Fecral Catalyst Support By Electro-Chemical Coating

Yang¹,

Jang²,

Lee³

2015

Archives of Metallurgy and Materials

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FeCrAl is comprised essentially of Fe, Cr, Al and generally considered as metallic substrates for catalyst support because of its advantage in the high-temperature corrosion resistance, high mechanical strength, and ductility. Oxidation film and its adhesion on FeCrAl surface with aluminum are important for catalyst life. Therefore various appropriate surface treatments such as thermal oxidation, Sol, PVD, CVD has studied. In this research, PEO (plasma electrolytic oxidation) process was applied to form the aluminum oxide on FeCrAl surface, and the formed oxide particle according to process conditions such as electric energy and oxidation time were investigated. Microstructure and aluminum oxide particle on FeCrAl surface after PEO process was observed by FE-SEM and EDS with element mapping analysis. The study presents possibility of aluminum oxide formation by electro-chemical coating process without any pretreatment of FeCrAl.

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Section: Resultsmentioning

confidence: 99%

Aluminum Oxide Formation On Fecral Catalyst Support By Electro-Chemical Coating

Yang¹,

Jang²,

Lee³

2015

Archives of Metallurgy and Materials

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“…With this technique, protective as well as multifunctional coatings can be produced by adjusting the process parameters. PEO treatments are usually carried out in apparatus composed of a conventional electrolytic cell and power supply with high voltage output [139].…”

Section: Plasma Electroly Plasma Electroly Plasma Electroly Plasma Elmentioning

confidence: 99%

“…The coating is deposited across the whole surface immersed in the solution without altering the bulk properties [138]. The PEO process and the final coating characteristics are highly dependent on several factors, including the electrolyte composition/concentration, substrate materials, electrical parameters (voltage and time) and geometry of the electrolytic cell [139]. It should be borne in mind that these factors are essentially interdependent making the process quite complex.…”

Section: Plasma Electroly Plasma Electroly Plasma Electroly Plasma Elmentioning

confidence: 99%

Biomedical materials and techniques to improve the tribological, mechanical and biomedical properties of orthopedic implants – A review article

Ibrahim

Sarhan

Yusuf

et al. 2017

Journal of Alloys and Compounds

275

100

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“…La oxidación electrolítica con plasma (OEP) es una técnica usada para el recubrimiento cerámico de metales como aluminio, titanio y magnesio (Stojadinovic et al, 2010;Li et al, 2013;Galvis et al, 2012); este tratamiento aumenta la dureza y la resistencia al desgaste y a la corrosión (Lugovskoy & Zinigrad, 2013;De Viteri et al, 2014). En general, se trata de un método de bajo costo, ya que los dispositivos utilizados son comunes; por otro lado, es amigable con el medio ambiente si se tiene en cuenta que no utiliza solventes orgánicos, ni genera residuos tóxicos.…”

Section: Introductionunclassified

Implementación De Una Fuente Conmutada Para Uso en La Técnica De Oxidación Electrolítica Con Plasma

2017

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Recibido 04-04-2017, aceptado 12-06-2017, versión final 25-07-2017.Artículo Investigación RESUMEN: Se implementó una fuente conmutada para ser utilizada en la técnica de Oxidación Electrolítica con Plasma (OEP). Los dispositivos electrónicos que se usaron son comunes y de bajo costo, lo que facilita la construcción del sistema. Se utilizó un microcontrolador de MICROCHIP para generar una señal digital con control de frecuencia y ciclo útil; también se usó un banco de condensadores y un puente de diodos para rectificar la alimentación suministrada directamente por la red eléctrica. El manejo de la potencia se hizo con transistores MOSFET en configuración "low side", la medición de la corriente se hizo con un sensor de Efecto Hall y los datos se enviaron a un computador mediante comunicación USB para ser visualizados a través de un algoritmo creado en LabVIEW. La fuente fue probada para crear microcavidades en láminas de titanio con el objetivo de formar nanoestructuras de dióxido de titanio.PALABRAS CLAVE: Fuente conmutada; oxidación electrolítica con plasma; ciclo útil; MOSFET.ABSTRACT: A switched-mode power supply was implemented for using in the Plasma Electrolytic Oxidation (PEO) technique. The electronic devices are inexpensive and ordinarily used, which facilitates the construction of the system. A MICROCHIP microcontroller was used for generating a digital signal with frequency and duty cycle control; a capacitor bank and a diode bridge were also used for rectifying the input signal from the electrical network. The management of the output voltage was made with an arrangement of MOSFET transistors in the "low side" configuration; the measurement of the current was made with a Hall Effect sensor and using the USB communication the data was sent to a computer for visualization with a LabVIEW algorithm. The power supply was tested for creating microcavities in a titanium sheet with the aim of forming nanostructures of titanium dioxide.

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Plasma Electrolytic Oxidation Coatings on Lightweight Metals

Cited by 39 publications

References 58 publications

Aluminum Oxide Formation On Fecral Catalyst Support By Electro-Chemical Coating

Aluminum Oxide Formation On Fecral Catalyst Support By Electro-Chemical Coating

Biomedical materials and techniques to improve the tribological, mechanical and biomedical properties of orthopedic implants – A review article

Implementación De Una Fuente Conmutada Para Uso en La Técnica De Oxidación Electrolítica Con Plasma

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