Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Anna Kalvane"'
Publikováno v:
Medžiagotyra, Vol 17, Iss 1, Pp 62-64 (2011)
Lead-free potassium sodium niobate (K0.5Na0.5)NbO3 (KNN) has been prepared via conventional ceramic processing method. The influence of 0.5 wt% - 1.5 wt% MnO2 and WO3 addition on the sintering, crystallographic structure, microstructure and dielectri
Externí odkaz:
https://doaj.org/article/aa2a3b06e9df4423a1a3ce115b32c108
Autor:
Renata Bujakiewicz-Koronska, Łukasz Gondek, Leonid Vasylechko, Maria Balanda, Ewa Juszynska-Galazka, Miroslaw Galazka, Dorota Majda, Wojciech Piekarczyk, Antoni Zywczak, Agnieszka Cizman, Maciej Sitarz, Piotr Jelen, Wojciech Salamon, Piotr Czaja, Jaroslaw Jedryka, Kamil Koronski, Anna Kalvane, Karolina Gornicka, Ewa Markiewicz, Satoshi Yamashita, Yasuhiro Nakazawa
Publikováno v:
Journal of Alloys and Compounds. 946:169344
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 83:1094-1099
The processes of low-frequency and infra-low-frequency polarization in solid solutions (1 ‒ х) Ba0.95Pb0.05TiO3 + хСо2О3 (x = 0; 0.1; 0.3; 0.5; 1; 2 wt %) prepared using conventional ceramic technology are studied at a wide range of temperatur
Autor:
Anna Kalvane, M. Dziubaniuk, Jan Suchanicz, K. Konieczny, K. Kluczewska, Dorota Sitko, M. Nowakowska-Malczyk
Publikováno v:
Integrated Ferroelectrics. 196:78-86
The ceramics of 0.95BaTiO3–0.05PbTiO3+Xwt.%CuO (X = 0.05, 0.1, 1, 3) were prepared by a solid phase reaction. The structural and morphology studies were carried out by means of X-ray diffraction te...
Publikováno v:
Integrated Ferroelectrics
Dielectric permittivity, dielectric losses and ac-conductivity of polycrystalline Bi1−xSmxFeO3 (x = 0; 0.05; 0.1; 0.15; 0.2) are measured in the frequency range 1 kHz–10 MHz and in the temperature range 25–600 °C. Anomalies have been observed
Publikováno v:
Integrated Ferroelectrics. 196:60-63
The paper presents the results of detailed studies of the thermal expansion of (1-x)PbNi1/3Nb2/3O3-xPbTiO3 solid solutions with x = 0-0.8. The anomalous and lattice contributions to deformation and...
Publikováno v:
Integrated Ferroelectrics
Ba0.7Pb0.3TiO3 and Ba0.7Pb0.3TiO3+yCuO (y = 0.1 wt%, 0.5 wt%, 1 wt% and 3 wt%) samples were prepared by a solid state reaction method. High purity raw materials were used. Structural properties of the sintered pellets were studied by X-ray diffractom
Autor:
Anna Kalvane, A. V. Sopit, Andris Sternberg, K. Bormanis, Maija Antonova, A. I. Burkhanov, V. O. Semibratov
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 82:229-233
Properties of the dielectric response of (K0.5Na0.5)(Nb1 – xTa x )O3 + 0.5 mol % MnO2 (KNN-xTa) ferroelectric ceramics at temperatures including that of the structural phase transition (SPT) from the orthorhombic phase to tetragonal is studied and
Publikováno v:
Integrated Ferroelectrics
The sintering conditions, phase structure, and electrical properties of the ZnO and CdO doped (Na0.5K0.5)NbO3 (NKN) ceramics were investigated and discussed. All the samples were prepared by a solid state reaction method. The addition of 1 wt% CdO an
Publikováno v:
Phase Transitions. 90:78-85
The crystal structure modifications of BaTiO3 induced by cobalt doping were studied. The polycrystalline (1 − x)BaTiO3 + xCo2O3 samples, with x ≤ 10 wt.%, were prepared by high temperature sintering conventional method. According to X-ray phase a