Abstract
Tungsten oxide, WO2.96, was reduced toα-W in hydrogen for various time periods over the temperature range 500°C to 900°C. Intermediate oxides were determined using X-ray diffraction analysis of the semireduced powders. Several dopant conditions were used, to find the effect on oxide structures and reaction kinetics of the usual dopants K, Si and Al. The scanning electron microscope was employed to determine the morphology of the crystallites at intermediate and final stages of reduction.
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von O. Herrmann and H. Pfister:Tech. Wiss. Abh. Osram Ges., 1958, vol. 7, pp. 269–75.
N. F. Cervilli and C. K. Lui Wei:Electrochem. Technol., 1963, vol. 1, pp. 247–52.
W. L. Wanmaker, M. L. Verheijke, and W. Parchen:Philips Res. Rep., 1959, vol. 14, pp. 201–06.
D. M. Chizikov, Yu. E. Ratner, and Yu. E. Tsvetkov:Russ. Met., 1970, no. 6, pp. 5-9.
8th Plansee Seminar, Reprint vol. 1, paper 7, Plansee Society, Metall Werke Plansee, Reutte, Austria, May 27–30, 1974.
A. Magneli, G. Andersson, B. Blomberg, and L. Kihlborg:Anal. Chem., 1952, vol. 24, pp. 1998–2000.
H. Hartman, F. Ebert, and O. Bretschneider:Z. Anorg. Allg. Chem., 1931, vol. 198, pp. 116–40.
G. Hägg and N. Schönberg:Acta Crystaltogr., 1954, vol. 7, pp. 351–52.
G. Mannella and J. O. Haugen:J. Phys. Chem., 1956, vol. 60, pp. 1148–49.
W. R. Morcom, W. L. Worrell, H. G. Sell, and H. I. Kaplan:Met. Trans., 1974, vol. 5, pp. 155–61.
E. Gebert and R. J. Ackermann:Inorg. Chem., 1966, vol. 5, pp. 136–42.
V. K. Sarin:J. Mater. Sci., 1975, vol. 10, pp. 593–98.
M. Ozasu and H. Fukuma:Proceedings of the 1965 International Powder Metallurgy Conference, Modern Developments in Powder Metallurgy, H. H. Hauser, ed., vol. 1, pp. 144–52, Plenum Press, New York, 1966.
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This research was supported in part by the U.S. Energy Research and Development Administration, Contract E(11-1)-1198.
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Wilken, T.R., Morcom, W.R., Wert, C.A. et al. Reduction of tungsten oxide to tungsten metal. Metall Trans B 7, 589–597 (1976). https://doi.org/10.1007/BF02698592
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DOI: https://doi.org/10.1007/BF02698592