COMBUSTION OF COMPOSITES FROM FRAGMENTED POROUS SILICON AND SODIUM PERCHLORATE MONOHYDRATE IN INERT GASES, NITROGEN, AND AIR

In creating energy-rich composites based on nanostructured silicon, it is topical to ensure stable characteristics
of their combustion. In this connection, establishing conditions and mechanisms for the appearance of precursors,
i.e., sources of ignition ahead of the front of a combustion wave and their influence on the course of the process,
is of importance. In the work, the authors have presented the results of investigation into the combustion of the
composites with combinations of their parameters using high-speed photography and the shadow method of
visualization of disturbances in gas media at different pressures in the substrates with a wall thickness of 50 μm to
3 mm from materials with excellent acoustic impedance. Possible causes of formation of the precursors have been
indicated, in particular, the instability of the burning velocity of the composites and the low humidity of the sodium-
perchlorate monohydrate in them.


Author:  V. N. Mironov, E. S. Demukh, O. G. Penyazkov, K. L. Sevruk, I. I. Chernukho
Keywords:  nanosilicon, sodium perchlorate, energy-saturated composites, precursors, stability of combustion
Page:  1223