Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical characterization method for black pigments applied to solar-selective absorbing paints

Not Accessible

Your library or personal account may give you access

Abstract

We propose a novel, to our knowledge, method for characterizing the optical properties of pigment particles or powders. Measurements of the diffuse and the total transmittance as well as the diffuse and the total reflectance are used to obtain effective scattering and absorption coefficients per unit length for the particles that are dispersed in a continuous matrix. For dilute dispersions in the single-scattering regime scattering and absorption cross sections of the particles were obtained. The method was applied to two pigments, namely, FeMnCuOx and black carbon. The data were obtained by use of pellets consisting of low concentrations of FeMnCuOx or black-carbon pigments dispersed in a KBr matrix. The pigment volume concentrations used to evaluate the scattering and the absorption coefficients ranged from 0.053% to 0.530% for FeMnCuOx and 0.076% to 0.310% for the black carbon. These ranges were found to exhibit the linear dependence of the coefficients as a function of volume fraction, as given by single-scattering theory.

© 2001 Optical Society of America

Full Article  |  PDF Article
More Like This
Absorption and scattering of light by pigment particles in solar-absorbing paints

Marta Klanjšek Gunde and Zorica Crnjak Orel
Appl. Opt. 39(4) 622-628 (2000)

Reflectance of pigmented polymer coatings: comparisons between measurements and radiative transfer calculations

William E. Vargas and Gunnar A. Niklasson
Appl. Opt. 40(1) 85-94 (2001)

Infrared Reflectance of Paints

Arthur B. Krewinghaus
Appl. Opt. 8(4) 807-812 (1969)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (11)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved