Mater.Phys.Mech.(MPM)
No 1, Vol. 41, 2019, pages 8-14

MECHANICAL IMPULSE ENHANCEMENT IN A MICROSYSTEM BASED
ON NANOPOROUS SILICON COMBUSTION

S.K. Lazarouk, A.V. Dolbik, V.A. Labunov

Abstract

Nanostructured porous silicon impregnated by solid state oxidizer has been studied in order to provide the mechanical impulse for jet-propulsion microsystems. The system with jet-propulsion motion on a silicon chip has been tested for impulse measurements. The silicon chip has been fastened on a carrying platform through an elastic spacer. The elastic spacer promotes the combustion and prevents from explosion of porous silicon fast oxidation. It is shown that such a microsystem gains the impulse up to 200-220 mNžs.

Keywords: combustion, explosion, mechanical pulse, microthruster, multichip structure, nanoporous silicon

full paper (pdf, 1040 Kb)