ChemInform Abstract: Crystal Structure of New Ternary Compounds Al₂Ln₁₁Ge₈ (Ln: Y, Gd, Tb, Dy, Ho, Er) and Thermal Properties of Al₂Er₁₁Ge₈.

Abstract

Crystal Structure of New Ternary Compounds Al 2 Ln 11 Ge 8 (Ln: Y, Gd, Tb, Dy, Ho, Er) and Thermal Properties of Al2Er11Ge8. -The title compounds are prepared by arc-melting of the elements followed by annealing at 1273 K for 720 h and at 673 K for 48 h. Their crystal structure is determined by powder XRD. The isotypic Al2Ln11Ge8 (Ln: Y, Gd, Tb, Dy, Ho, Er) compounds crystallize in the tetragonal space group I4/mmm with the Ge 10 Ho 10 -type structure. The lattice thermal expansion of Al 2 Er 11 Ge 8 is measured using high temperature XRD in the temperature range from 293 to 743 K. -(ZENG*, L.; HE, W.; SHEN, W.; LU, M.; J. Alloys Compd. 529 (2012) 158-162, http://dx.