Influence of Technology of Nanopowder Production on the Microstructure of the Sintered by Spark-Plasma Material | Chapter 11 | Recent Trends in Chemical and Material Sciences Vol. 1

A comparison of the Spark-Plasma Sintering (SPS) results of two types of aluminium oxide nanopowders generated through conductor explosion and plasma synthesis. The qualities of the resulting compacts are notably different in mechanical properties and microstructure when the parameters of both powders are similar (spherical form of the particles, size, phase composition), as well as SPS modes. Technological impurities in powders obtained by different procedures are the cause of discrepancies in the qualities of the resultant compacts. Impurities contained in nanopowder created by electro explosion of conductor were artificially added to powder made by plasma synthesis and not containing these impurities, revealing their effect on the creation of the microstructure and characteristics of the sintered by SPS method sample.

Author (s) Details

Dr. A. G. Zholnin
National Research Nuclear University "MEPhI", 115409 Moscow, Kashirskoye Highway, 31, Russia.

Dr. A. P. Melekhov
National Research Nuclear University "MEPhI", 115409 Moscow, Kashirskoye Highway, 31, Russia.

Dr. R. S. Hafizov
State University of Land Management, 105064 Moscow, Kazakova Street 15, Russia.

S. A. Vakulenko
National Research Nuclear University 'MEPhI', 115409 Moscow, Kashirskoye Highway, 31, Russia.

N. A. Rubinkovskiy
National Research Nuclear University 'MEPhI', 115409 Moscow, Kashirskoye Highway, 31, Russia.

A. V. Samokhin
Federal State Institution of Science Institute of Metallurgy and Materials Science of A.A. Baikov of Academy of Sciences (RAS IMET), Russia.

N. V. Alekseev
Federal State Institution of Science Institute of Metallurgy and Materials Science of A.A. Baikov of Academy of Sciences (RAS IMET), Russia.

E. G. Grigoryev
National Research Nuclear University 'MEPhI', 115409 Moscow, Kashirskoye Highway, 31, Russia.

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