Infrared spectral behavior of fine particulate solids
Transmission and emission spectra of clouds and layers of fine particulate samples of quartz, magnesium oxide, and aluminum oxide in the 6.5-35-??m wavelength range are presented. They demonstrate that the behavior of layers of particles constitutes a good analogue for a cloud of particles; that individual micrometer-sized particles emit most where they absorb most; that as the size of the particle is increased, the emission features reverse polarity and the spectrum approaches that of one obtained from a polished plate; and that as the particle layer-thickness increases, radiative interaction becomes increasingly important so that the emission maximum shifts from the strongest to weaker features, or produces a maximum at the Christiansen wavelength.
Citation Information
Publication Year | 1976 |
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Title | Infrared spectral behavior of fine particulate solids |
DOI | 10.1021/j100552a015 |
Authors | G.R. Hunt |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Journal of Physical Chemistry |
Index ID | 70011069 |
Record Source | USGS Publications Warehouse |