1. The effects of $PbZn_{1/3}Nb_{2/3}O_3$-doping on structural, thermal, optical, dielectric, and ferroelectric properties of $BaTiO_3$ ceramics
- Author
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Pascal Marchet, D. Majda, J. Suchanicz, Piotr Czaja, Konrad Świerczek, H. Czternastek, D. Sitko, Pedagogical University of Krakow, AGH University of Science and Technology [Krakow, PL] (AGH UST), Elecrical Engineering, Czestochowa Tech Univ, Axe 3 : organisation structurale multiéchelle des matériaux (SPCTS-AXE3), Science des Procédés Céramiques et de Traitements de Surface (SPCTS), Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Faculty of Chemistry - Jagiellonian University, and Uniwersytet Jagielloński w Krakowie = Jagiellonian University (UJ)
- Subjects
Permittivity ,Phase transition ,Ionic radius ,Materials science ,Condensed matter physics ,Ferroelectric ceramics ,Analytical chemistry ,General Physics and Astronomy ,02 engineering and technology ,Dielectric ,[CHIM.MATE]Chemical Sciences/Material chemistry ,Dielectric withstand test ,021001 nanoscience & nanotechnology ,01 natural sciences ,Ferroelectricity ,visual_art ,0103 physical sciences ,visual_art.visual_art_medium ,Ceramic ,010306 general physics ,0210 nano-technology - Abstract
International audience; Low-lead (1-x)BT-xPZN (x ¼ 0, 0.025, 0.05, 0.075, 0.10, 0.125, and 0.15) ceramics were successfully synthesized by the spark-plasma-sintering method for the first time. Their phase transition behavior as well as structural, thermal, optical, and electrical properties was investigated. These materials exhibit the structure of perovskite-type solid solutions and undergo a sequence of phase transitions, typical of pure BaTiO 3 (BT). The dielectric test results revealed that with the increase in the PbZn 1/3 Nb 2/3 O 3 (PZN) content, the frequency dispersion of electric permittivity increases, whilst the dielectric/ferroelectric properties tend to deteriorate, which is characteristic of relaxor-type behavior. Therefore, it is reasonable to suppose that these ceramics progressively lack long-range ordering. These effects are due to the competition between lone-pair electrons' induced changes in the A-O band upon Pb 2þ addition and ionic size differences. In general, the transition temperatures observed by dielectric analyses are in good agreement with those obtained from X-ray diffraction and differential scanning calorimetry measurements. The BT-PZN system may help to understand why relaxor behavior appears in perovskite-based materials. It appears that these materials can become a good starting point for the development of new low-lead electronic ceramics. Published by AIP Publishing. https://doi.
- Published
- 2017
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