Abstract
The phase diagram of the W-Te system as proposed by [1] and redrawn by [2] is shown in Fig. 119. The orthorhombic (space group Pmmn) ditelluride has been identified as the only intermediate phase [3 to 5], see the reviews [6 to 8]. The formation of WTe4 as a thin coating on tungsten in Te melts at high temperatures (>700°C) is assumed in [9]. The solubility of W in Te is low (< 0.3 at%), as microscopic studies show [3].
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Jehn, H., Gmünd, S., Bär, G., Best, E., Koch, E. (1993). Reactions with Tellurium. In: von Jouanne, J., Koch, E., Koch, E. (eds) W Tungsten. Gmelin Handbook of Inorganic and Organometallic Chemistry - 8th Edition, vol W / A-B / A / 5 / b. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-08684-1_5
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