Premium
Near‐Infrared and Visible Absorption Spectroscopy of Nano‐Energetic Materials Containing Aluminum and Boron
Author(s) -
Yang Yanqiang,
Wang Shufeng,
Sun Zhaoyong,
Dlott Dana D.
Publication year - 2005
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.200500001
Subject(s) - absorption cross section , materials science , absorption (acoustics) , analytical chemistry (journal) , particle size , absorption spectroscopy , boron , infrared spectroscopy , particle (ecology) , nanoparticle , spectroscopy , nano , infrared , range (aeronautics) , optics , chemistry , nanotechnology , cross section (physics) , composite material , physics , oceanography , organic chemistry , chromatography , quantum mechanics , geology
Abstract Near‐infrared and visible absorption spectra are measured for nano‐energetic materials consisting of thirteen different types of Al or B nano‐particles in the 30 nm to 1 μm size range embedded in nitrocellulose or Teflon oxidizers, using an integrating sphere absorption spectrometer. The Al nano‐particle absorption is generally similar to the spectra of bulk Al, but the absorption strength is size‐dependent and up to twelve times more intense. Absorption coefficients are determined as a function of nano‐particle loading. For Al particles where the size is known, per particle cross sections are also determined. The ratio of cross section to volume decreases with increasing particle size. The implications of these measurements for nano‐sized energetic material analysis and for laser‐ignition experiments are briefly discussed.