caa a22 4500 46322695X CHVBK 20180405153230.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10853-006-1384-x doi (NATIONALLICENCE)springer-10.1007/s10853-006-1384-x Synthesis of tungsten bronze powder and determination of its composition [Elektronische Daten] [Meirav Mann, Gennady Shter, George Reisner, Gideon Grader] Sodium tungsten bronze powders were synthesized by thermal reduction of a gas/melt system at high temperature. Samples having a cubic structure with different compositions were prepared. The initial melt included Na2WO4, WO3 and 10-40% mol. NaCl while the reducing gas was hydrogen at 750°C. An original mechanism of controlling the powders size and distribution was suggested and discussed. A quantitative novel and simple method to determine the bronze composition based on TGA data was developed. An increase in the NaCl content led to a decrease of the crystals size and improved the powder uniformity. Fine powders, in the 2-5μm size range, were synthesized from melt with 40% mol of NaCl. The stoichiometry parameter x of the obtained bronzes ranged from 0.8 to 0.92. An excellent agreement between x values determined by the classical XRD route and the proposed TGA method was demonstrated. Springer Science+Business Media, LLC, 2006 Mann Meirav Chemical Engineering Department, Technion, 32000, Haifa, Israel aut Shter Gennady Chemical Engineering Department, Technion, 32000, Haifa, Israel aut Reisner George Crown Center for Superconductivity and Physics Department, Technion, 32000, Haifa, Israel aut Grader Gideon Chemical Engineering Department, Technion, 32000, Haifa, Israel aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/3(2007-02-01), 1010-1018 0022-2461 42:3<1010 2007 42 10853 https://doi.org/10.1007/s10853-006-1384-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1384-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mann Meirav Chemical Engineering Department, Technion, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Shter Gennady Chemical Engineering Department, Technion, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Reisner George Crown Center for Superconductivity and Physics Department, Technion, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Grader Gideon Chemical Engineering Department, Technion, 32000, Haifa, Israel aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/3(2007-02-01), 1010-1018 0022-2461 42:3<1010 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer