Carbon-containing composites based on metals

V. E. Vaganov

Abstract


Problem statement  Among the developed technologies metal-composites production,a special place takes powder metallurgy, having fundamental differences from conventionally used foundry technologies. The main advantages of this technology are: the possibility of sensetive control, the structure and phase composition of the starting components, and ultimately the possibility of obtaining of bulk material in nanostructured state with a minimum of processing steps. The potential reinforcers metals include micro and nano-sized oxides, carbides, nitrides, whiskers. The special position is occupied with carbon nanostructures (CNS): С60 fullerenes, single-layer and multi-layer nanotubes, onions (spherical "bulbs"), nano-diamonds and graphite,their properties are being intensively studied in recent years. These objects have a high thermal and electrical conductivity values, superelasticity, and have a strength approximate to the theoretical value, which can provide an obtaining composite nanomaterial with a unique set of physical and mechanical properties. In creation of a metal matrix composite nanomaterials (CM), reinforced by various CNS, a special attention should be given to mechanical activation processes (MA) already at the stage of preparation of the starting components affecting the structure, phase composition and properties of aluminum-matrix composites.

Purpose. To investigate the influence of mechanical activation on the structure and phase composition of aluminum-matrix composites.

Conclusion. The results of the study of the structure and phase composition of the initial and mechanically activated powders and bulk-modified metal-composites are shown, depending on the type and concentration of modifying varieties CNS, regimes of MA and parameters of compaction. The study is conducted of tribological properties of Al-CNS OF nanostructured materials.


Keywords


structure; fullerene; aluminum; crystallites; mechanoactivation; carbides

References


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GOST Style Citations


Ваганов В. Е. Структурообразование при спекании порошковых материалов системы железо-углеродные нанотрубки (нановолокна) / В. Е. Ваганов, В. Д. Захаров, Д. В. Абрамов, С. Н. Ратиев, А. Д. Рябцев, В. В. Пашинский, Л. А. Соловьева // Материаловедение. - 2011. - № 2 - C. 53-56.

 

Ваганов В. Е. Исследование структуры и свойств композиционных материалов на основе меди модифицированной углеродными наноструктурами после деформационной и термической обработки / В. Е. Ваганов, Ю. А. Щетинин, В. М. Астрединов, В. Д. Захаров, В. В. Решетняк // Конструкции из композиционных материалов. - 2013. - № 3(131). - С. 11-15.

 

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Кечин В. А. Основные тенденции создания наноструктурированных материалов / В. А. Кечин, В. Е. Ваганов // Металлургия и машиностроение. – 2010. – № 2. – С. 27-30.

 

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Tibbets G. G. Why are carbon filaments tubular? / G. G. Tibbets // Journal of crystal growth. – 1984. – Vol. 66, iss. 3. – P. 632-638.

 

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Химическая модификация углеродных нанотрубок / Ваганов В. Е., Орлов В. Ю., Шибаев Д. А., Базлов Д. А. // Известия вузов. Химия и химические технологии. – 2011. – Т. 54, вып. 7. – С. 38-41.

 

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