Nickel nanoparticles with sizes from 12 to 34 nm were obtained by pyrolysis of nickel formate. They have been used as additives to the low-temperature grease (CIATIM-201). Studies of tribotechnical properties have shown that the CIATIM-201 with nickel additives at concentrations of 0.05 wt. % -0.2 wt. % has the best antiwear and extreme pressure properties in comparison with pure grease. Friction surfaces were characterised by the methods of atomic-force microscopy AFM (PHYWE), 3D optical microscopy and indentation tests. The improvement of tribotechnical properties of grease is related to the process of micro-polishing, which leads to the formation of a structural layer with a high modulus of elasticity on the friction surface.
Донской государственный технический университет (Ростов-на-Дону, Россия) Don State Technical University (Rostov-on-Don, Russian Federation) Аннотация. В работе получены наноразмерные соединения меди термическим разложением капроната меди. Подобраны режимы пиролиза органической соли. Представлены расчеты диаметра частиц на основе РФА и результаты седиментационного анализа. Установлены, что в процессе разложения капроната меди образуются частицы оксида меди (I) и частицы Сu, размер которых составляет соответственно 30 нм и 11 нм.
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