Examining the Diffuse Reflectance Spectra and the Radiation Stability for the Mixtures of BaSO4 Micropowders and SiO2 Nanopowders with Various Specific Surface Area

Mikhail M. Mikhailov; Semyon A. Yuryev; Alexey N. Lapin

doi:10.4028/www.scientific.net/KEM.806.106

Paper Titles

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Examining the Diffuse Reflectance Spectra and the Radiation Stability for the Mixtures of BaSO₄Micropowders and SiO₂Nanopowders with Various Specific Surface Area
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Examining the Diffuse Reflectance Spectra and the Radiation Stability for the Mixtures of BaSO₄Micropowders and SiO₂Nanopowders with Various Specific Surface Area

Abstract:

The paper is devoted to studying the effect of the specific surface area (SSA) of SiO₂nanopowders (3 wt.%) added to BaSO₄powders of a micron size on grain size distribution and diffuse reflectance spectra (ρ_λ) within the UV, visible, and near IR regions. Additionally, the authors have examined the spectra alteration (Δρ_λ) after irradiating with electrons (E=30 KeV). It has been established that mere mixing of the powders at a low concentration of nanoparticles leads to the post-irradiation decrease in the reflective power and to the subsequent increase in the reflectance coefficient stability.

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Periodical:

Key Engineering Materials (Volume 806)

Pages:

106-112

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.806.106

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Online since:

June 2019

Authors:

Mikhail M. Mikhailov*, Semyon A. Yuryev, Alexey N. Lapin

Keywords:

Accelerated Electrons, Barium Sulfate, Irradiation, Micropowders, Mixtures, Nanoparticles, Optical Properties, Silicon Dioxide, Specific Surface Area

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