Control of nanoenergetics through organized microstructures

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

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Heavily doped p-type silicon substrates were etched to form thick porous layers (170 m) and impregnated with magnesium perchlorate to form reactive composites. Characterization of the reactive wave propagation by high speed photography and spectroscopic methods indicated slow propagation rates between 1 and 8 m s 1. Multiscale structures were formed on the same substrates using microfabrication techniques followed by an electrochemical etch based on a random micro-crack pattern observed in lower doped substrates which yielded faster propagating composites. These organized multiscale composites exhibited flame propagation speeds up to 500 m s 1indicating that reaction propagation can be controlled by structural modifications.

Original languageEnglish (US)
Article number055011
JournalJournal of Micromechanics and Microengineering
Volume22
Issue number5
DOIs
StatePublished - May 2012

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Microstructure
Composite materials
Substrates
High speed photography
Microfabrication
Silicon
Wave propagation
Magnesium
Cracks
magnesium perchlorate

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Electrical and Electronic Engineering
  • Mechanics of Materials
  • Electronic, Optical and Magnetic Materials

Cite this

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Control of nanoenergetics through organized microstructures. / Parimi, Venkata Sharat; Tadigadapa, Srinivas A.; Yetter, Richard A.

In: Journal of Micromechanics and Microengineering, Vol. 22, No. 5, 055011, 05.2012.

Research output: Contribution to journalArticle

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