FIELD: nanotechnologies.
SUBSTANCE: method relates to nanotechnology and can be used in making articles containing heat exchange surfaces with micro- and nanorelief in order to intensify heat exchange, reduce hydraulic resistance and improve surface capillary properties. Method of forming on a flat surface a coating from nanoparticles of aluminum oxide involves depositing a solution of nanoparticles on the surface. Colloidal solution of nanoparticles is prepared in water, its application is carried out by spraying on a flat surface with time intervals of 10 seconds, wherein the surface is heated to temperature of 250 °C and evaporation of water drops at atmospheric pressure in air.
EFFECT: technical result is obtaining on surface of article a layer with high capillary properties and fewer operations.
1 cl, 2 dwg, 1 ex
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