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

Piątkowska, M.; Tomaszewicz, E.

doi:10.1007/s10973-016-5499-2

Cited by 21 publications

(11 citation statements)

References 56 publications

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“…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].…”

Section: Methodsmentioning

confidence: 99%

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

Piz

Filipek

2017

J Therm Anal Calorim

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Section: Methodsmentioning

confidence: 99%

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

Piz

Filipek

2017

J Therm Anal Calorim

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“…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.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2018

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Scheelite-type Ca1−xMnxMoO4 (x = 0.0, 0.01, 0.05, 0.10 and 0.15) nanomaterials were successfully synthesized via a combustion route. Dielectric studies showed a weak n-type electrical conductivity characteristic for insulators and low relative permittivity (εr < 15) decreasing with increasing Mn2+ content. CaMoO4 and Mn2+-doped nanomaterials are chemically compatible with Al and Ag electrodes and promising for low-temperature co-fired ceramic applications. Magnetic studies showed, at room-temperature diamagnetism for pure CaMoO4, the balance between diamagnetism and paramagnetism for Ca1−xMnxMoO4 (x = 0.01) and paramagnetic behaviour when 0.05 ≤ x ≤ 0.15 as well as the short-range antiferromagnetic interactions growing in strength as Mn2+ content increases. The Landé factor fitting procedure showed a spin-only contribution to the magnetic moment. CaMoO4 matrix unexpectedly revealed the residual paramagnetism at low temperatures derived probably from the molybdenum ions having unpaired 4d electrons as well as a paramagnetic-diamagnetic transition at 70 K.

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“…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 ?…”

Section: Methodsmentioning

confidence: 99%