METHOD OF OBTAINING ANTICORROSION CALCIUM-CONTAINING COATINGS ON MAGNESIUM ALLOYS Russian patent published in 2012 - IPC C25D11/30 

Abstract RU 2445409 C1

FIELD: chemistry.

SUBSTANCE: method is realised via plasma-electrolytic oxidation in anodic galvanostatic conditions with effective anode current density of 0.4-0.5 A/cm2 for 250-300 s in an aqueous electrolyte containing the following in g/l: calcium glycerophosphate 25-35 and sodium fluoride 4-6, as well as sodium hydroxide NaOH until achieving pH 10.9-11.3.

EFFECT: improved anticorrosion properties of the coating formed on the surface of magnesium alloys by increasing thickness, density, homogeneity and adhesion thereof to the substrate while also improving biocompatibility and biological activity thereof due to formation of a surface layer containing hydroxyapatite.

1 tbl, 3 dwg, 3 ex

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RU 2 445 409 C1

Authors

Gnedenkov Sergej Vasil'Evich

Khrisanfova Ol'Ga Alekseevna

Zavidnaja Aleksandra Grigor'Evna

Sinebrjukhov Sergej Leonidovich

Puz' Artem Viktorovich

Egorkin Vladimir Sergeevich

Dates

2012-03-20Published

2011-03-17Filed