Journal of Automation and Information Sciences

ISSN for PRINT: 1064-2315

For Online Access

Best Paper Award Selection - Editorial Board Site

2008, Volume40

Issue 1

81 pages

DOI: 10.1615/JAutomatInfScien.v40.i1

Issue price - $257.00

Yuriy P. Ladikov-Roev
Institute of Space Research of National Academy of Sciences of Ukraine and National Space Agency of Ukraine, Ukraine

Petr P. Rabochiy
Institute of Space Research of National Academy of Sciences of Ukraine and National Space Agency of Ukraine, Kiev, Ukraine

A technique allowing greater degree of substances purification and using the directed crystallization method of periodic intensive heating the segment of lateral surface of the vial with a melt near the crystallization front, is proposed. Numerical simulations has shown that this mode of heating leads to the formation of convective vortex, which, as a result of the Archimedean force, rises to the surface, grasping and carrying out impurities to the top of the molten zone, which are located near a zone of crystallization. This, in turn, leads to the decrease in the concentration of impurities in the greater part of the crystal resulting from growth, i.e. to a more pure substance in this part of the crystal.

DOI: 10.1615/JAutomatInfScien.v40.i1.30 Download article, 35-45 pages

Article price - $45.00

<< Previous article   Next article >>