ChemInform Abstract: Isothermal Section of the Al—Dy—Ge Ternary System at 673 K.

Abstract

Isothermal Section of the Al-Dy-Ge Ternary System at 673 K. -The 673 K isothermal section of the phase diagram of the title system is constructed based on powder XRD and SEM results. Five new ternary compounds, Al0.33DyGe2 (space group Cmcm, CeNiSi2-type structure), AlDy2Ge6 (Amm2, Ce2CuGe6-type structure), Al2DyGe2 (P3ml, La2O3-type structure), AlDy3Ge3 (Pmcn, unknown structure type), and Al 3 Dy 11 Ge 7 (I4/mmm, unknown structure type) are identified in the system. -(QIN*, P.; XU, Z.; QIN, Z.; LI, D.; ZENG, L.; HE, W.; J. Alloys Compd. 509 (2011) 13, 4484-4494, http://dx.

Al-Dy-Ge (Aluminum-Dysprosium-Germanium)

“…Al 2 DyGe 2 (labeled here as s 1 and as A by [2011Qin]) is La 2 O 3 -type hexagonal. Al 3 Dy 2 Ge 4 (labeled s 2 and as B by [2011Qin]) is Ba 3 Bi 2 Cd 4 -type orthorhombic).…”

“…AlDy 3 Ge 3 (s 8 or H) is an unknown structure type with orthorhombic symmetry. Al 3Àx Dy 11 Ge 7+x (0 £ x £ 0.7; labeled s 9 or as I by [2011Qin]) is an unknown structure type with tetragonal symmetry. Among these, four compounds: Al 3 Dy 2 Ge 4 (s 2 or B), AlDyFe (s 4 or D), Al 2 Dy 2 Ge 3 (s 5 or E) and AlDy 2 Ge 2 (s 7 or G), were known earlier.…”