scholarly journals Preparation of Iron-Cobalt Alloy Ceramic Coating by Micro-arc Oxidation and its Application for Degradation of Rhodamine B

2015 ◽  
Author(s):  
Haitao Bu ◽  
Zhaohua Jiang ◽  
Zhongping Yao
Keyword(s):  
Rhodamine B ◽  
Ceramic Coating ◽  
Cobalt Alloy ◽  
Iron Cobalt ◽  
Micro Arc Oxidation

Preparation of Micro-Arc Oxidation Ceramic Coating and Application in Degradation Rhodamine B

2014 ◽  
Vol 687-691 ◽  
pp. 4210-4213
Author(s):  
Hai Tao Bu ◽  
Zhao Hua Jiang ◽  
Zhong Ping Yao
Keyword(s):  
Rhodamine B ◽  
Photoelectron Spectroscopy ◽  
Degradation Rate ◽  
Ceramic Coating ◽  
Amorphous State ◽  
Electrolyte System ◽  
X Ray ◽  
Micro Arc Oxidation ◽  
Fenton System

A ceramic coating grows on the surface of Q235 carton steel in situ by the micro-arc oxidation method and the silicate electrolyte system; and the phase composition, surface topography and elementary composition of the ceramic coating are analyzed by X-ray diffractometer (XRD), scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (EDS). The results show that the ceramic coating growing on the surface of Q235 carton steel in situ presents an irregular porous structure; and the electrolyte and the element in the basal body exist in the ceramic coating in the form of amorphous state. And then, the author degrades the rhodamine B solution by the home-made ceramic coating and H2O2Fenton system, so that the degradation rate of the rhodamine B solution can reach 97%; and meanwhile, the degradation rate is not reduced along the increased using times.

Variable Parameter Processes of Micro-Arc Oxidation for Aluminium Alloy

2011 ◽  
Vol 704-705 ◽  
pp. 1273-1278
Author(s):  
Cheng Gao ◽  
Jin Yong Xu ◽  
Xuan Yi Shi ◽  
Ya Juan Liu ◽  
Jing Chun Zhang ◽  
...  
Keyword(s):  
Growth Rate ◽  
Wear Rate ◽  
Ceramic Coating ◽  
Early Stage ◽  
Variable Parameter ◽  
Ceramic Coatings ◽  
Constant Current ◽  
Constant Voltage ◽  
Micro Arc Oxidation ◽  
The Way

In micro-arc oxidation process, ceramic coating had a rapid growth all along by the way of constant current oxidation, and ceramic coating had a low roughness by the way of constant voltage oxidation. But few research focus on the mixed control process of constant current oxidation and constant voltage oxidation. In this paper we propose a variable parameter process that can combine the advantages of constant current and constant voltage oxidation for the first time. The growth kinetics of different technics was analyzed according to the change law of current and voltage. Surface topographs of ceramic coating were observed using scanning electron microscopy (SEM). The friction tests were carried out using a self-made friction tester. The results show that ceramic coating has an upper growth rate and a low roughness by the process of constant current+constant voltage oxidation. The ceramic coating has a high growth rate by process of constant voltage+constant current oxidation. The results of friction test indicate that the wear rate and roughness of ceramic coating are positive correlation at early stage of friction. While the ceramic coatings treated by different technics have the close wear rate at stable friction stage, which embodies the inner layer of ceramic coating has a well antiwear behavior.

Preparation and performance of alumina ceramic coating doped with aluminum nitride by micro arc oxidation

2020 ◽  
Vol 46 (10) ◽  
pp. 17112-17116 ◽  
Author(s):  
Wei Yang ◽  
Shangkun Wu ◽  
Dapeng Xu ◽  
Wei Gao ◽  
Yuhong Yao ◽  
...  
Keyword(s):  
Aluminum Nitride ◽  
Ceramic Coating ◽  
Alumina Ceramic ◽  
Micro Arc Oxidation ◽  
And Performance

The Effects of Magnetic Field on Micro-Arc Oxidation Ceramic Coating on Magnesium Alloys

2014 ◽  
Vol 960-961 ◽  
pp. 143-147
Author(s):  
Jun Zhao ◽  
Jian Jun Xi ◽  
Zhi Gang Wang ◽  
Chun Ping Zhao
Keyword(s):  
Magnetic Field ◽  
Corrosion Resistance ◽  
Electron Microscope ◽  
Friction Coefficient ◽  
Ceramic Coating ◽  
Ceramic Coatings ◽  
Oxidation Method ◽  
Polarization Test ◽  
Micro Arc Oxidation ◽  
Scanning Electron

Ceramic coatings were prepared on ZM5 magnetism substrate by micro-arc oxidation method with and without magnetism filed in silicate electrolyte. The morphology of the MAO coatings was investigated by scanning electron microscope (SEM). The friction coefficient of the MAO coatings prepared with magnetism is about 0.2 and more stable than the coatings prepared without magnetism. The polarization test indicated that the coating prepared with magnetism has better corrosion resistance.

The Influence of Carbon on Tribological Properties of Micro-Arc Oxidation Ceramic Coating

2019 ◽  
Vol 11 (4) ◽  
pp. 563-568
Author(s):  
Fang-Xia Ye ◽  
Jun Dai ◽  
Lei Li ◽  
Yao-Zhao Mu
Keyword(s):  
Tribological Properties ◽  
Ceramic Coating ◽  
Micro Arc Oxidation
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