Фазовая диаграмма системы Si-Y

К оглавлению: Другие диаграммы (Others phase diargams)


Si-Y (Silicon-Yttrium) A.B. Gokhale and G.J. Abbaschian The assessed phase diagram for the Y-Si system is based on the work of [61Lun]. The equilibrium diagram proposed by [61Lun] has been modified as follows. The liquidus is indicated as being uncertain in the assessed diagram because the techniques utilized by [61Lun] would not yield accurate liquidus data. A polymorphic transformation for Y3Si5 is shown at 450 C [59Per1]. In addition, aYSi2 and bYSi2 are included. There is some controversy about the existence of these phases. [61Gsc] stated that the solid solubilities of Y in (Si) and Si in (Y) are 0.01 wt.%, but did not specify the source. No other data were found in the literature. 59Par: E. Parth‚, Acta Crystallogr., 12, 559-560 (1959). 59Per1: J.A. Perri, E. Banks, and B. Post, J. Phys. Chem., 63, 2073-2074 (1959) . 59Per2: J.A. Perri, I. Binder, and B. Post, J. Phys. Chem., 63, 616-619 (1959). 61Gsc: K.A. Gschneidner, Jr., Rare Earth Alloys, D. Van Nostrand Co., Inc. New York, 276-278 (1961). 61Lun: C.E. Lundin, The Rare Earths, F.H. Spedding and A.H. Daane, Ed., J. Wiley and Sons, Inc., New York, 264-266 (1961); presented at the Symposium on the Rare Earths and Related Elements, ASM, Chicago (1959). 67Smi G.S. Smith, A.G. Tharp and Q. Johnson, Acta Crystallogr., 22, 940-943 ( 1967). 69May: I. Mayer and I. Shidlovsky, Inorg. Chem., 8, 1240-1243 (1967). 72May: I. Mayer and I. Felner, J. Less-Common Met., 29, 25-31 (1972). Published in Bull. Alloy Phase Diagrams, 7(5), Oct 1986. Complete evaluation contains 1 figure, 3 tables, and 34 references. Special Points of the Y-Si System