Open AccessMetal powder absorptivity: modeling and experiment
Author(s) -
C. D. Boley,
Scott C. Mitchell,
Alexander M. Rubenchik,
Shuai Wu
Publication year - 2016
Publication title -
applied optics
Language(s) - English
Resource type - Journals
ISSN - 0003-6935
DOI - 10.1364/ao.55.006496
Subject(s) - molar absorptivity , materials science , extinction (optical mineralogy) , optics , metal , absorption (acoustics) , attenuation coefficient , composite material , metallurgy , physics
We present results of numerical modeling and direct calorimetric measurements of the powder absorptivity for a number of metals. The modeling results generally correlate well with experiment. We show that the powder absorptivity is determined, to a great extent, by the absorptivity of a flat surface at normal incidence. Our results allow the prediction of the powder absorptivity from normal flat-surface absorptivity measurements.