Protective Ceramic Titanium-Oxide Nanocoatings

Abrashov, A. A.; Grigoryan, N. S.; Vagramyan, T. A.; Колесников, А. В.; Zhilenko, D. Yu.

doi:10.1007/s10717-015-9695-5

Cited by 5 publications

(4 citation statements)

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“…In recent years, in some types of oxide-titanium adhesion coatings have been proposed as a replacement for the adhesive phosphate and chromate layers under PVC [7,[9][10][11][12][13][14][15][16][17]. Among the advantages of the new coatings are their energy saving production technologies, ease of implementation and operation, and the low toxicity of the solutions used.…”

Section: Introductionmentioning

confidence: 99%

On the Mechanism of Formation of Conversion Titanium-Containing Coatings

et al. 2020

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The present work is devoted to the study of the mechanism of the process of formation of adhesive oxide-titanium coatings on steel, zinc, and aluminum surfaces. For the first time, the following hypothesis has been confirmed experimentally, namely, that nickel, being the first metal to be deposited on a steel substrate, creates active centers on which titanium oxides are formed, because the hydrolysis of hexafluorotitanic acid is adsorbed, which then form a continuous film. The data obtained, regarding the dependence of the coating thickness on the linear rate of the solution flow along the treated surface, indirectly confirm that the formation of insoluble titanium oxides occurs because of the alkalization of the solution adjacent to the surface. It has been established that in the presence of hexavalent molybdenum compounds in the solution as oxidizers, molybdenum is included in the coating in the form of oxides. It has been revealed that in the lower layers of the coating, molybdenum is contained in the form of compounds of molybdenum (V) and (VI), while in the upper layers, it is contained only in the form of the compound of molybdenum (VI).

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Section: Introductionmentioning

confidence: 99%

On the Mechanism of Formation of Conversion Titanium-Containing Coatings

et al. 2020

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“…In recent years, as an alternative to adhesive phosphate layers, nanostructure ceramic adhesive coatings have been increasingly used in world practice. [7][8] The advantages of new technologies are their lower energy consumption and manufacturability compared to phosphate processes. Ceramic coatings have high thermal and electrical resistance.…”

Section: Introductionmentioning

confidence: 99%

Determination of the Optimal Deposition Conditions of Oxide-Zirconium Coating on Steelbase

Zhurinov¹,

Statsyuk²,

Fogel³

et al. 2019

RJC

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In this paper, we developed a process for the deposition of adhesive oxide-zirconium coatings from solutions of hexafluorozirconic acid in the presence of Co (II) and Ni (II) ions on a steel base. The optimal conditions for the formation of oxide-zirconium coatings (concentrations of hexafluorozirconic acid, Co (II) and Ni (II) ions, temperature, pH, deposition time, thickness) are determined. The corrosion resistance of the obtained coatings was investigated depending on the change in the process parameters. It is found that the stabilization of the current-free potential and the optimum thickness of the zirconium oxide coating are achieved at close time parameters. The results of corrosion tests are in agreement with the adhesion strength of the obtained oxide-zirconium coatings on iron base in the temperature range 30-40 o С.It is shown that the formed oxide-zirconium coatings satisfy the requirements imposed on adhesion layers for paint coatings.

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“…Today, an important task is to find a suitable replacement for phosphate processing, capable of providing the same or even better adhesion than traditional methods of phosphating. In recent years in world practice, nanostructured ceramic coatings have been increasingly used as an alternative to conversion phosphate layers [6][7][8][9][10][11][12][13][14][15] , of which the most promising are Zr-conversion coatings. Solutions for these coatings do not require heating, strict control parameters, are easy to apply, to form a much smaller sludge and more environmentally friendly.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nickel and Molybdenum on the Conditions of Oxide-zirconium Coatings on Steel Base

Zhurinov¹,

Statsyuk²,

Fogel³

et al. 2019

Orient. J. Chem

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In this paper, we developed the conditions for the deposition of zirconium oxide coatings from solutions containing hexafluorozirconic acid, nickel and molybdenum salts on a steel base. Optimal concentrations of nickel and molybdenum were determined to obtain oxide-zirconium coatings used as adsorption layers for paint coatings. The effect of temperature, time and subse-quent heat treatment on the protective anticorrosive and adhesive characteristics of oxide-zirconium coatings has been established. It is shown that the formed oxide-zirconium coating are nano scale size. It is established that the corrosion resistance of the investigated coatings in the temperature range 30-40°C is in agreement with their adhesion strength. On the basis of electro-chemical studies, it was shown that the addition of hexafluorozirconic acid to nickel and molybdenum salts leads to inhibition of iron ionization and an increase in the corrosion resistance of the formed coating.

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Protective Ceramic Titanium-Oxide Nanocoatings

Abstract: A solution is developed and the parameters of the process for depositing ceramic nanosize titanium-oxide coatings satisfying the requirements of adhesion layers beneath paint coats are determined.

Cited by 5 publications

References 0 publications

On the Mechanism of Formation of Conversion Titanium-Containing Coatings

On the Mechanism of Formation of Conversion Titanium-Containing Coatings

Determination of the Optimal Deposition Conditions of Oxide-Zirconium Coating on Steelbase

Effect of Nickel and Molybdenum on the Conditions of Oxide-zirconium Coatings on Steel Base

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