Quantification of Ignition Properties of Porous Si Based Energetics

Abstract

The scientific research objective of this proposal is to quantitatively determine the ignition temperature and minimum ignition energy of porous Si based energetic materials and to correlate those ignition properties with the physical microstructures of porous Si and the chemical compositions of the oxidizers.We have made contributions in three frontiers of energetic materials: 1) demonstrated the first application of flash ignition of Si nanoparticles (NPs) and investigating the effect of NP size and packing porosity on the minimum ignition; 2) developed a new synthesis route to prepare Si/Fe2O3 core/shell NPs with shorter oxygen diffusion length and hence much enhanced ignition properties; and 3) demonstrated that the addition of porous Si can greatly improve the ignition and combustion performance of Al micron size particles.

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Document Details

Document Type
Technical Report
Publication Date
Mar 02, 2018
Accession Number
AD1051931

Entities

People

  • Xiaolin Zheng

Organizations

  • Stanford University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Combustion
  • Electron Microscopy
  • Energetic Materials
  • Energy
  • Flash Lamps
  • Fuel Additives
  • Heat Capacity
  • Heat Transfer
  • Materials
  • Nanomaterials
  • Nanoparticles
  • Nanotechnology
  • Particle Size
  • Particles
  • Specific Heat
  • Thermal Conductivity

Fields of Study

  • Materials science

Readers

  • Environmental Remediation and Restoration.
  • Nanocomposite Materials Science
  • Rocket Propulsion.

Technology Areas

  • Biotechnology