6533b7dcfe1ef96bd1272072
RESEARCH PRODUCT
Study of phase transition in Bi3TiNbO9-BaBi2Nb2O9 ceramics
Dariusz BochenekB. Wodecka-duśM. PilchLucjan KozielskiMałgorzata AdamczykJoachim KuszMaciej ZubkoWolfgang Hofmeistersubject
lcsh:TN1-997Phase transitionCeramicsMaterials science02 engineering and technologyDielectric01 natural sciencesX ray methods0103 physical scienceslcsh:TA401-492CeramicComposite materiallcsh:Mining engineering. MetallurgyPhase transition010302 applied physicsPhase transition CeramicsMetals and Alloys021001 nanoscience & nanotechnologyGrain sizeGrain sizevisual_artDielectric propertiesvisual_art.visual_art_mediumlcsh:Materials of engineering and construction. Mechanics of materials0210 nano-technologyX-ray methodsdescription
Abstract The subject of the paper is lead free bismuth layer structure oxides (1-x)Bi3TiNbO9-xBaBi2Nb2O9 (x=0; 1; 2; 3 mol). The influence of Bi3TiNbO9/BaBi2Nb2O9 ratio on dielectric and structural properties was studied in a wide range of temperatures. Change in the ratio causes a decrease in the maximum value of dielectric permittivity and shifts the temperature of ε’max to low values, leading to linear decreasing of average grain size and linear increasing of ceramics density. These results indicate an augment of the packing degree and the participation of pores are significantly decreased with the increase of BaBi2Nb2O9 compound intake. Moreover, for 0.7Bi3TiNbO9-0.3BaBi2Nb2O9 ceramics the dielectric phase transition is broadened and the properties characteristic for the ferroelectric relaxor appear.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-09-01 |