Preparation, Structure, Surface and Impedance Spectroscopy of Na2Zn0,5Mn0,5P2O7 Ceramics
42-oji Lietuvos nacionalinė fizikos konferencija: Programa ir pranešimų tezės
2017
V. Venckute,
Antonija Dindune,
Aija Krūmiņa,
Dagnija Valdniece,
M. Lelis,
V. Jasulaitiene,
A.. Maneikis,
S. Daugela,
T. Šalkus,
A.. Kežionis,
A.F. Orliukas
The Na2Zn0.5Mn0.5P2O7 powder was prepared by the solid state reaction method. The powder structure was studied
by X-ray diffraction (XRD) in the temperature range from room temperature (RT) to 520 K. The results of XRD
measurements show that the obtained Na2Zn0.5Mn0.5P2O7 is a mixture of two phases: Na2MnP2O7, which crystallizes in
the triclinic space group P–1, and Na2ZnP2O7, which crystallizes in the tetragonal space group P42/mmm. The chemical
compositions of the powder and ceramic samples were investigated by an energy dispersive X-ray spectrometer
(EDX) and X-ray fluorescence spectroscopy (XFS). The surface of ceramics was examined by X-ray photoelectron
spectroscopy (XPS). The electrical conductivity and dielectric permittivity of the ceramics were investigated from RT
to 700 K in the frequency range 10–109 Hz. The relaxational dispersion of electrical conductivity in the investigated
frequency and temperature range was found.
Keywords
sodium, pyrophosphate, crystal structure, conductivity, dielectric permittivity
DOI
10.15388/proceedings/LNFK.42
Hyperlink
http://www.lnfk42.vu.lt/thesis/LNFK42.pdf
Venckute, V., Dindune, A., Krūmiņa, A., Valdniece, D., Lelis, M., Jasulaitiene, V., Maneikis, A., Daugela, S., Šalkus, T., Kežionis, A., Orliukas, A. Preparation, Structure, Surface and Impedance Spectroscopy of Na2Zn0,5Mn0,5P2O7 Ceramics. In: 42-oji Lietuvos nacionalinė fizikos konferencija: Programa ir pranešimų tezės, Lithuania, Vilnius, 4-6 October, 2017. Vilnius: 2017, pp.214-214. ISBN 978-609-459-880-7. Available from: doi:10.15388/proceedings/LNFK.42
Publication language
Lithuanian (lt)