Фазовая диаграмма системы Er-Se

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Er-Se

Er-Se (Erbium-Selenium) Editor Two Er-Se phase diagrams were presented by the same authors, [65Haa1] and [ 65Haa2]. These diagrams are similar, but invariant temperatures in [65Haa1] are higher by up to 120 C. The assessed phase diagram is primarily redrawn from [65Haa2], which was published later and presumably superseded [65Haa1]. The Er-rich eutectic composition, however, is adopted from [65Haa1], because the initial slope calculation with the van't Hoff relationship indicates that the eutectic composition of "3 at.% Se" in [65Haa2] is very unlikely. According to [65Haa2], Er3Se4 and Er2Se3 form a solid solution range. This range is shown as a single-phase field in the assessed diagram.-H.O. 61Bru: G. Bruzzone, Atti Accad. Naz. Lincei, Rend. Cl. Sci. Fiz. Mat. Nat., 31, 260-264 (1961) in Italian. 65Haa1: D.J. Haase, H. Steinfink and E.J. Weiss, Rare Earth Research III, L. Eyring, Ed., Gordon and Breach Science Publishers, New York, 535-544 (1965). 65Haa2: D.J. Haase, H. Steinfink, and E.J. Weiss, Inorg. Chem., 4(4), 538-540 ( 1965). 1

 

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