Uniaxial compaction of nanopowders on a magnetic-pulse press

Autor:	A. A. Nozdrin, N. B. Volkov, Arseniy Bokov, S. V. Zayats, G. Sh. Boltachev, S. N. Paranin, A. M. Il’ina, E. A. Olevskii
Rok vydání:	2013
Předmět:	Pressing Mechanical system Condensed Matter::Materials Science Solution of equations Materials science Physics and Astronomy (miscellaneous) Compaction Composite material Porosity Aluminum oxide Magnetic field Pulse (physics)
Zdroj:	Technical Physics. 58:1459-1468
ISSN:	1090-6525 1063-7842
Popis:	Uniaxial magnetic-pulse compaction of nanosize powders is studied experimentally and theoretically. Experiments are carried out with powders based on aluminum oxide. The theoretical model of the process includes the consistent solution of equations describing the dynamics of the pulsed magnetic field as well as the dynamics of the mechanical system (movable parts of the press and the powder being compacted). The behavior of the powder is described using the phenomenological theory of a plastically compacted porous body. Direct comparison with experimental data makes it possible to determine all input parameters required for theoretical calculations. A wide range of pressing conditions is investigated and the effect of parameters such as the mass of the powder being compacted and the mass of the parts of the press being accelerated is analyzed. The conditions are determined for the most effective use of inertial properties of the press, which must result in high-density products of compacted powders.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0240ec8fdb22e6c61d4b46c20d3c934c https://doi.org/10.1134/s106378421310006x Zobrazit plný text záznamu Plný text ve formátu PDF