A parametric study of reactive wave propagation in nanoporous silicon energetic composites

Venkata Sharat Parimi, Srinivas A. Tadigadapa, Richard A. Yetter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a comprehensive study aimed at understanding various parameters that affect the reactive wave propagation speed (n), and thus, the energy release rate. N- and P- doped silicon substrates were etched to prepare nPS with different pore structures, which was characterized by gravimetric, microscopic, and gas adsorption techniques. Energetic composites with varying equivalence ratios (φ) were prepared by impregnating nPS samples with perchlorate salts, which were studied by high speed videography and spectroscopic temperature measurements. Samples forming random micro-crack patterns always exhibited n in the order of 300 -400 m/s, whereas samples without such microstructure exhibited n between 2 -11 m/s for a wide range of φ. Further, controlled hierarchical structures with micro and nanoscale features (matrix of pillars and microchannels) were fabricated to tune n over two orders of magnitude (from 2 m/s to 500 m/s) by changing the burn mode from conductive burning to convective burning.

Original languageEnglish (US)
Title of host publicationFall Technical Meeting of the Eastern States Section of the Combustion Institute 2013
PublisherCombustion Institute
Pages363-368
Number of pages6
ISBN (Electronic)9781629937199
StatePublished - Jan 1 2013
EventFall Technical Meeting of the Eastern States Section of the Combustion Institute 2013 - Clemson, United States
Duration: Oct 13 2013Oct 16 2013

Publication series

NameFall Technical Meeting of the Eastern States Section of the Combustion Institute 2013

Other

OtherFall Technical Meeting of the Eastern States Section of the Combustion Institute 2013
CountryUnited States
CityClemson
Period10/13/1310/16/13

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry

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