Use of TiO2 nanoparticles for synthesis of BaZrxTi(1 − x)O3 powders with high reflective capacity

BaZr x Ti (1  −  x ) O 3 powders were solid-state synthesized from mixtures of BaCO 3 and ZrO 2 powders of micron sizes and TiO 2 nanopowder at a concentration of substituting zirconium atoms of 10–50 wt%. The dependencies of the grain-size distribution and phase composition, diffuse reflection spec...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2022, Vol.128 (7), Article 609
Main Authors: Mikhailov, M. M., Lapin, A. N., Yuryev, S. A., Alekseeva, O. A.
Format: Article
Language:English
Subjects:
Absorptance
Absorptivity
Applied physics
Atom concentration
Characterization and Evaluation of Materials
Condensed Matter Physics
Grain size distribution
Machines
Manufacturing
Materials science
Nanoparticles
Nanotechnology
Optical and Electronic Materials
Phase composition
Physics
Physics and Astronomy
Processes
Surfaces and Interfaces
Thin Films
Titanium dioxide
Zirconium dioxide
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Summary:BaZr x Ti (1  −  x ) O 3 powders were solid-state synthesized from mixtures of BaCO 3 and ZrO 2 powders of micron sizes and TiO 2 nanopowder at a concentration of substituting zirconium atoms of 10–50 wt%. The dependencies of the grain-size distribution and phase composition, diffuse reflection spectra in the UV, visible, near IR, and IR regions, as well as the solar absorptance ( a s ), on zirconium atom concentration were studied. It was stated that the maximal yield of the main phase of the powder was 88.5%. The high reflective capacity in the visible region of the spectrum and the low value of the solar absorptance a s is determined by the presence of unreacted TiO 2 nanoparticles in a quantity of up to 7.3% in the phase composition and small sizes of grains and granules of the powder.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-022-05751-2