Nanostructured crystals of fluorite phases Sr1 − x R x F2 + x (R are rare-earth elements) and their ordering. I. Crystal growth of Sr1 − x R x F2 + x (R = Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu)

The Decomposition Products of Sulfur Hexafluoride (SF6) with Metals Dissolved in Liquid Ammonia

“…In all cases, it was not possible to detect elemental sulfur and the addition of diluted HCl lead to the formation of H 2 S. Figure 3 shows the X-ray powder diffraction pattern of the reaction between Sr and SF 6 . The lattice parameters of a = 5.8004(6) Å, V = 195.156(3) Å 3 for SrF 2 and of a = 6.0157(7) Å, V = 217.642(3) Å 3 for SrS are in accordance with the results shown in the literature [14,15].…”

Nanostructured crystals of Sr1−x R x F2+x fluorite phases and their ordering: 6. Microindentation analysis of crystals

“…The Sr 0.861 Sm 0.139 F 2.139 crystal has the same deviation from x = 0.10, but it fitted well with the general dependence. However, one should take into account that the determination of this composi tion from the lattice parameter leads to large errors [1]. Thus, one can say that the measurements of H μ , Recall that this concentration range is characterized by the maximum response of H μ to the crystal compo sition.…”

“…Crystallization was per formed in an atmosphere of teflon pyrolysis products; this atmosphere supressed pyrohydrolysis (the latter is accompanied by oxygen penetration into fluoride crystals, which, in turn, affects their mechanical prop erties). The crystal compositions, refined based on the lattice parameters [1], are listed in the table.…”

“…The crystal growth was described in [1]. A crucible with crystals was cooled at a rate of 200-350 K/h.…”

“…This study continues the investigations aimed at obtaining and analyzing defect (nanocluster) atomic structures and some related properties of single crys tals of the family of nonstoichiometric fluorite phases Sr 1 -x R x F 2 + x (R = La-Lu or Y are rare earth elements (REEs)) [1][2][3][4].…”