Photothermally Activated Motion and Ignition Using Aluminum Nanoparticles

Abstract

The aluminum nanoparticles (Al NPs) are demonstrated to serve as active photothermal media, to enhance and control local photothermal energy deposition via the photothermal effect activated by localized surface plasmon resonance (LSPR) and amplified by Al NPs oxidation. The activation source is a 2-AA-battery-powered xenon flash lamp. The extent of the photothermally activated movement of Al NPs can be ~6 mm. Ignition delay can be ~0.1 ms. Both scanning electron microscopy and energy-dispersive X-ray spectroscopy measurements of motion-only and after-ignition products confirm significant Al oxidation occurs through sintering and bursting after the flash exposure. Simulations suggest local heat generation is enhanced by LSPR. The positive-feedback effects from the local heat generation amplified by Al oxidation produce a large increase in local temperature and pressure, which enhances movement and accelerates ignition.

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Document Details

Document Type
Technical Report
Publication Date
Jan 17, 2013
Accession Number
ADA580298

Entities

People

  • Jacques E. Abboud
  • James. R. Gord
  • Mingjun Zhang
  • Naibo Jiang
  • Sukesh Roy
  • Xinyuan Chong
  • Zhili Zhang

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Chemical Reactions
  • Combustion
  • Electric Fields
  • Electron Microscopy
  • Electrons
  • Energy
  • Heat Transfer
  • Ignition Lag
  • Materials
  • Materials Science
  • Metallic Nanoparticles
  • Military Research
  • Nanoenergetics
  • Nanoparticles
  • Nanotechnology
  • Surface Plasmon Resonance
  • Surface Plasmons

Readers

  • Nanoscale Plasmonic Nanotechnology
  • Pulsed Power and Plasma Physics.
  • Thin Film Deposition Science.

Technology Areas

  • Biotechnology
  • Microelectronics