Abstract
The aim of the present work was to provide arguments to the almost ‘hystorical’ problem of what β-tungsten is.
WO3was reduced in dry H2gas atmosphere in order to examine, whether β-tungsten formed in such a way contains oxygen as part of the lattice described as WxO (e.g. W20O) or is a pure metallic phase of tungsten.
As a result of thermoanalytical measurements and of chemical analysis for oxygen, the assumption is supported that in the 600-800°C temperature range of metal formation not the WxO (β-W)→W(α-W) transformation but the β-W→α-W structural rearrangement of materials with identical chemical composition is the most probable process.
The earlier opinion that the formation of the β-W structure requires the presence of oxygen atoms was not verified by our results.
Similar content being viewed by others
References
C. H. Schram, P. Gordon and A. B. Kaufmann, J. of Metals, 2 (1950) 195.
A. L. Moss and I. Woodward, Acta Cryst., 12 (1959) 255.
A. Hartmann, F. Ebert and O. Bretschneider, Z. Anorg. Chem., 198 (1931) 116.
C. G. Fink and C. C. Ma, Trans. Electrochem. Soc., 84 (1943) 33.
PDF 2-1138.
I. I. Kornilov, Azv. Akad. Nauk SSSR, Neorg. Mater., 3 (1967) 1851.
A. T. Vasko, Encyclopedia of Electrochemistry of the Elements, V-2 69-133 (1976) p. 109.
M. G. Charlton, Nature, 174 (1954) 703.
M. G. Charlton and G. B. Davis, Nature, 175 (1955) 131.
G. Hägg and N. Schönberg, Acta Crystallogr., 7 (1954) 351.
J. Bonsquet and G. Perachon, C. R. Acad. Sci. Paris, 258 (1964) 934.
V. K. Sarin, J. Mat. Sci., 10 (1975) 593.
T. Wilken, C. Wert et al., Mod. Dev. Powder Met., 161 (1977) 9.
A. K. Basu and F. R. Sale, Mod. Dev. Powder Met., 171 (1977) 9.
R. Haubner, W. D. Schubert et al., Inter. J. Ref. Hard Metals, 2 (1982) 108.
Ju. M. Szolonin, Izv. AN SSSR, Metalü, 6 (1985) 29.
L. Pauling, Acta Cryst., 10 (1957) 374.
S. Geller, Acta Cryst., 10 (1957) 380.
S. Geller, Acta Cryst., 9 (1956) 885.
J. Neugebauer, A. J. Hegedüs and T. Millner, Z. Anorg. allg.
J. Neugebauer, MTA MFKI Közl., 0–15 (1974) 22.
T. Millner, A. J. Hegedüs, K. Sasvári und J. Neugebauer, Z. Anorg. allg. Chem., 289 (1957) 288.
R. Gróh, T. Rakk and E. Tekula, MTA MFKI Közl., 0–2 (1969) 5.
A. J. Hegedüs, MTA MFKI Közl., 0–11 (1974) 125.
T. Millner, Acta Chim. Acad. Sci. H, 82 (1974) 1.
W. R. Morcow, W. L. Worell et al., Metallurgy Trans., 5 (1974) 155.
A. J. Hegedüs, T. Millner, J. Neugebauer und K. Sasvári, Z. Anorg. allg. Chem., 281 (1955) 64.
T. Millner, A. J. Hegedüs, K. Sasvári und J. Neugebauer, Z. Anorg. allg. Chem., 292 (1957) 25.
W. D. Schubert, Int. J. of Refractory Metals and Hard Materials, 8 (1990) 178.
J. Neugebauer and L. Bartha, Int. J. of Refractory Metals and Hard Materials, 13 (1995) 1-34, p. 7 and 16.
W. D. Schubert, B. Lux and B. Zeiler, Int. J. of Refractory Metals and Hard Materials, 13 (1995) 119.
J. Neugebauer, T. Millner und L. Imre, Tungsram Technische Mittl., 2 (1961) 52.
A. B. Kiss and F. Tisza, Acta Chim. Acad. Sci. Hung., 104 (1980) 211.
A. B. Kiss and H. K. Csuhaj, Acta Chim. Acad. Sci. Hung., 115 (1984) 27.
T. Millner, MTA Műszaki Tud. Oszt. Közl., XXI(1–4) (1957) 127. Akadémiai Széfoglaló.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kiss, A.B. Thermoanalytical Study of the Composition of β-tungsten. Journal of Thermal Analysis and Calorimetry 54, 815–824 (1998). https://doi.org/10.1023/A:1010143904328
Issue Date:
DOI: https://doi.org/10.1023/A:1010143904328