Synthesis, structure, and thermal stability of new scheelite-type Pb1−3x□xPr2x(MoO4)1−3x(WO4)3x ceramic materials

Abstract

ions concentration in the scheelite framework.

Synthesis and homogeneity range of Yb8−xYxV2O17 in the Yb8V2O17–Y8V2O17 system

“…The phases were identified on the basis of XRD characteristics presented in the PDF cards [27]. The powder diffraction pattern of Yb 82x Y x V 2 O 17 was indexed in analogy to other phases [28], i.e. by means of the POWDER program [29].…”

Reinvestigations of the Li2O–WO3 system

“…The pure phases obtained in this work were examined additionally by the DTA-TG, UV-Vis-IR/DRS and IR methods. These measuring methods were selected because they allow determination of phase composition of samples, establishing their melting temperatures as well as melting behaviour [23][24][25][26][27][28][29][30]. X-ray phase analysis (XRD) of the samples was performed using an Empyrean II diffractometer (PANalytical, The Nederlands, copper radiation filtered with a graphite monochromator) with the help of Highscore ?…”

Dielectric and magnetic characteristics of Ca1−xMnxMoO4 (0 ≤ x ≤ 0.15) nanomaterials

“…Divalent metal molybdates with relatively large cations such as Ca 2+ , Sr 2+ , Ba 2+ and Pb 2+ (ionic radius above 99 pm) exist in scheelite-type structure (tetragonal symmetry, space group I4 1 /a ; Z  = 4) where molybdenum ions adopt tetrahedral coordination, while divalent metal ions represent an eight-coordinated position (Sczancoski et al 2008; Sczancoski et al 2009; Ghosh et al 2015). Generally, metal molybdates are obtained by conventional solid-state reaction method (Pawlikowska et al 2017; Piątkowska and Tomaszewicz 2016; Tomaszewicz et al 2016). However, powders obtained in this way are characterized by large and irregular grains.…”