DEPOSITING METAL IONS ONTO SURFACE OF ELECTROCONDUCTIVE SUBSTRATES Russian patent published in 2013 - IPC C23C22/00 C23C22/05 C23C22/08 

FIELD: chemistry.

SUBSTANCE: aqueous compositions are obtained by preparing a solution from 0.5-1.5 parts water and 0.5-1.5 parts orthophosphoric acid or sulphuric acid, to which are added 0.5-1.5 parts ammonium hydroxide, having concentration of 20-30%, followed by addition of 0.5-1.5 parts alkali metal hydroxide in water with concentration of 40-60%, and then addition of 0.1-10 g of a non-alkali metal salt to 80-100 ml of the obtained solution.

EFFECT: surfaces formed by metal ions deposited from said compositions provide metal passivation and essentially eliminate friction in the metal-metal contact without using hydrocarbon-based lubricant materials.

11 cl, 14 dwg, 12 ex