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Cobalt and Rare-Earth Tungstates — Solid State Synthesis and Characterization as New Inorganic Pigments
Year: 2011
Type of publication: ostatní - článek ve sborníku
Name of source: Book of Abstracts of the 3rd Joint Czech-Hungarian-Polish-Slovak Thermoanalytical Conference & TERMANAL 2011 - XVIII. Conference on Thermal Analysis and Calorimetry
Publisher name: Slovenská technická univezita v Bratislave
Place: Bratislava
Page from-to: 41-41
Titles:
Language Name Abstract Keywords
eng Cobalt and Rare-Earth Tungstates — Solid State Synthesis and Characterization as New Inorganic Pigments The series of new cobalt and rare-earth metal tungstates with the formula CoRE2W2O10 were synthesized by the solid-state reaction method by heating of equimolar CoWO4/RE2WO6 mixtures (RE = Dy, Ho, Er). Thermal analysis methods (DTA, TG) were used for description and definition of optimal synthesis conditions and the thermal stability of final products. The characterization of obtained green and blue-grey powders (depending on type of used rare-earth metal) was performed by X-ray diffraction and colorimetry in the CIE L*a*b* system. The particle size distribution were measured and optimized also. The thermal stability of prepared compounds (1200–1250 °C) is necessary for use in colouring of glazes and plastics. Tungstates;Rare-Earth Metals;Thermal Analysis;Inorganic Pigments;Solid-State Synthesis;Optical Properties

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