Conversion Coatings
Preparation and Phosphating of Yttrium-Based Chemical Conversion Coatings on AZ91D Magnesium Alloy for Corrosion Protection
... the conversion solution, O mainly from the solution and phosphating process, and P from phosphating ...yttrium-based conversion coating, which has better uniformity than the yttrium conversion ...
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Structural and Electrochemical Properties of Al Added Molybdate Conversion Coatings on Zinc
... Raman spectra were obtained using a Raman spectropho- tometer (Jobin-Yvon, Model T64000). Infrared reflectance spectra were acquired using a FT-IR spectrometer (Bruker, IFS 113v). The composition-depth profiles of ...
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Electrochemical Corrosion Behaviour of Cerium Chemical Conversion Coatings on 304 Stainless Steel in Alkaline Solutions Containing Chloride Ions
... Chromate-based conversion coatings have been widely adopted to provide excellent corrosion resistance for carbon steel, magnesium alloy and stainless steel ...eco-friendly conversion coatings ...
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Formation Process and Properties of Phytic Acid Conversion Coatings on Magnesium
... continuous conversion coatings. The conversion coatings are interlaced with each other, be- cause one of the six phosphate carboxyl groups in phytic acid locates in a place and the others ...
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Chemical Conversion Coatings on Magnesium Alloys - A Comparative Study
... protection coatings on aluminum and magnesium alloys [7-12]. Cerium oxide conversion coatings were developed by various authors [13, ...stannate conversion coatings has been ...chemical ...
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Effects of Chelating Agents on Electrochemical Behavior and Microstructure of Phosphate Conversion Coatings on Magnesium Alloy AZ91D
... metal coatings, laser surface treatments, and chemical conversion ...Chemical conversion coatings, including chromate conversion coatings and phosphate conversion ...
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Effect of Quench Environment on the Conversion Coatings on Magnesium Alloy AZ91
... of coatings is represented through the documentation of coating surface of specimens treated for 5, 10 and 15 minutes due to the immersion into the coating ...prepared coatings can be seen in compactness of ...
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Corrosion Resistance of 5052 Al-alloy with a Zirconia-Rich Conversion Coating Used in Bipolar Plates in PEMFCs
... of conversion demonstrate that the coating did not exhibit pitting ...of conversion coating was free of pitting ...of conversion was very ...with conversion coatings passed a current ...
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Cerium-based Chemical Conversion Coating on Aluminum Alloy to Inhibits Corrosion in Chloride Solution
... chromate conversion coating method, which is also successfully applied for other metals and ...The conversion coatings were more resistant than the native oxide film, which could effectively inhibit ...
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Effect of Silicate Pretreatment on Lanthanum Conversion Coating of Hot-dip Galvanized Steel
... lanthanum conversion coatings used in this work is similar to those reported in the literature ...lanthanum conversion coatings with and without the silicate pretreatment, respectively, where ...
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A REVIEW ON SURFACE MODIFICATION OF AZ91 MAGNESIUM ALLOY FOR IMPROVEMENT IN CORROSION AND WEAR RESISTANCE
... plating, conversion coatings, anodizing, gas-phase deposition processes, thermo- mechanical treatments, laser surface alloying / cladding and organic ...
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The Study of a Phosphate Conversion Coating on Magnesium Alloy AZ91D: II. Effects of Components and their Content in Phosphating Bath
... phosphate conversion coating on magnesium alloy AZ91D was studied with electrochemical methods and scanning electron microscope ...phosphate conversion coatings are studied, and the studied ...
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Study of the Wear and Corrosion Performance of Hard Coatings Applied by Different Processes on Low Carbon Steel
... the coatings applied by HVOF spraying, the lamellar structure is dominant and pre- sents certain level of pores and oxides, as presented in the enlarged detail of Figure 3(b) and Figure 3(c) for Cr 3 C 2 25NiCr ...
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The Influence of Glass Flake and Micaceous Iron Oxide on Electrochemical Corrosion Performance of Waterborne Silicate Coatings in 3.5% NaCl Solution
... While ship corrosion in the ocean is inevitable, the corrosion rate can be controlled. Currently, there are two main corrosion protection methods for ships: cathodic protection and coating. Cathodic protection can be ...
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<p>Greater osteoblast densities due to the addition of amphiphilic peptide nanoparticles to nano hydroxyapatite coatings</p>
... several coatings with different conditions were ...for coatings prepared with pHEMA, HA and APNPs compared to the osteoblast cell density obtained for the rest of the ...
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Comparison of Microstructure and Oxidation Behavior of CoNiCrAlY Bond Coatings Prepared by Different Thermal Spray Processes
... NiCoCrAlY coatings tested at 1373 K, 12) our weight gain results are essentially the ...HVOF coatings of CoNiCrAlYRe tested at 1323 K were reported to result in about 50% smaller weight gains as compared to ...
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Service life of organic coatings: strategies for improving aesthetic and protective durability
... organic coatings having simultaneously self-healing and protective properties appears to be of paramount ...of coatings, must ensure, at the same time, an improvement or at least a maintenance of the ...
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A theoretical Design of a cover for lowering the solar cells temperature and enhance their performance Husam S. Al-Arab
... optical coatings are presented which are used as covers for solar cells, these coatings are reflect the infrared (heat) from the solar cell to increase the efficiency of the cell (because the cell’s ...
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Technological and economic perspectives for development and manufacturing of cathode materials for lithium ion batteries for transport industry
... ultra-thin coatings (to several nano-meters) with high uniformity and integrity, directly on the material of the electrode that usually consists of micro- and ...passivation coatings: applying ...
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Vol 3, No 10-12 (2014)
... PVA -MFR films are antimicrobial, especially in the case of gram positive bacteria like S. Aureus and Bacillus that are generally persistent in hospitals, and are a major health hazard, these films sprays and ...
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