The phase relationships in the Gd–Ti–Sn ternary system at 473 K and the new compound GdSn4Ti6

Ternary stannides RETi6Sn4 (RE = Y, Gd–Tm, Lu) with rhombohedral LiFe6Ge4 type structure

“…Analyses of the two data sets showed trigonal lattices and no further systematic extinctions, leading to the space groups R 3m, R3m, R 3, and R32, of which the centrosymmetric group R 3m was found to be correct, in agreement with previous results on GdTi 6 Sn 4 [19] and DyTi 6 Sn 4 [15]. The atomic parameters of GdTi 6 Sn 4 [19] were taken as starting values and both structures were refined using the Jana2006 package [28] with anisotropic atomic displacement parameters for all atoms.…”

“…At 5 K the magnetization isotherm displays a curvature as is common for a paramagnet at low temperatures and high fields. This in line with the susceptibility measurements shows that no magnetic ordering phenomena can be observed for GdTi 6 Sn 4 , opposed to previously reported results in [19]. Fig.…”

“…The atomic parameters of GdTi 6 Sn 4 [19] were taken as starting values and both structures were refined using the Jana2006 package [28] with anisotropic atomic displacement parameters for all atoms. The course of the displacement parameters of the rare earth positions indicated lower electron density.…”

“…The latter stannide crystallizes with the LiFe 6 Ge 4 [16,17]/ ZrFe 6 Ge 4 type structure, space group R 3m. The isotypic compound GdTi 6 Sn 4 has recently been characterized on the basis of powder Xray diffraction data [19]. The magnetic properties reported for this stannide are wrong, most likely due to a severe artifact during the measurement.…”

The phase relations in the Ce–Sn–Ti ternary system at 473 K

“…There are some studies reporting that the addition of small amount of light rare earth (RE) element can improve the microstructures and properties of Ti alloys [5,6]. As phase diagram plays an important role for materials research and materials application, the studies of the phase diagrams of the RE-Ti-M (M refers to metallic element) systems have always been paid close attention [7][8][9][10][11][12], for the design of new Ti alloys and Ti matrix composites.…”