2020
DOI: 10.3390/coatings10040328
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On the Mechanism of Formation of Conversion Titanium-Containing Coatings

Abstract: 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 dep… Show more

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Cited by 12 publications
(9 citation statements)
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References 26 publications
(32 reference statements)
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“…A droplet of a solution containing: CuSO 4 •5H 2 O 82 g/L; NaCl 33 g/L; 0.1 N HCl 13 mL/L was applied to a plate, and the time required for the plate color to change from gray to black was measured [39,40].…”
Section: Determination Of the Coating Protective Capabilitymentioning
confidence: 99%
“…A droplet of a solution containing: CuSO 4 •5H 2 O 82 g/L; NaCl 33 g/L; 0.1 N HCl 13 mL/L was applied to a plate, and the time required for the plate color to change from gray to black was measured [39,40].…”
Section: Determination Of the Coating Protective Capabilitymentioning
confidence: 99%
“…In order to eliminate this drawback, a small amount of nickel ions was introduced into the solution, which, as is known, have a beneficial effect on the adhesion of conversion coatings (phosphating and etc.) [12,13]. It turned out that in the presence of nickel ions (in the form of NiSO4•6H2O) in the solution of 0.22-1.12 g/l, the coatings formed in them cease to smear, and their deep black color is not disturbed.…”
Section: Determination Of the Molybdenum-containing Coatings Depositing Process Parametersmentioning
confidence: 99%
“…In the last decades, numerous studies have been aimed towards the substitution of Cr(VI) based surface conversion treatments for corrosion protection purposes. In particular, hexafluorozirconic acid (H 2 ZrF 6 ) [6][7][8][9][10][11][12][13] and hexafluorotitanic acid (H 2 TiF 6 ) [14][15][16] based treatments, silicon alkoxides derived sol-gel coatings [17][18][19][20], Cr(III) conversion treatments [21][22][23], and lanthanides based conversion coatings [24][25][26] gained prominent attention.…”
Section: Introductionmentioning
confidence: 99%