Study of barium titanate/nickel-zinc ferrite based composites: Electrical and magnetic properties and humidity sensitivity
Composites based on barium titanate and nickel zinc ferrite doped with cooper and samarium were prepared by a mixing method. The formation of barium titanate tetragonal crystal structure and nickel zinc ferrite cubic spinel structure was identified. Polygonal grains were formed in all three types of...
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| Format: | Article |
| Language: | English |
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University of Novi Sad
2020-03-01
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| Series: | Processing and Application of Ceramics |
| Subjects: | |
| Online Access: | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2047%2002.pdf |
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| author | Mirjana M. Vijatovic Petrovic Adis Dzunuzovic Jelena D. Bobic Nikola Ilic Ivan Stijepovic Biljana D. Stojanovic |
| author_facet | Mirjana M. Vijatovic Petrovic Adis Dzunuzovic Jelena D. Bobic Nikola Ilic Ivan Stijepovic Biljana D. Stojanovic |
| author_sort | Mirjana M. Vijatovic Petrovic |
| collection | DOAJ |
| description | Composites based on barium titanate and nickel zinc ferrite doped with cooper and samarium were prepared by a mixing method. The formation of barium titanate tetragonal crystal structure and nickel zinc ferrite cubic spinel structure was identified. Polygonal grains were formed in all three types of ceramics. Due to the very high conductivity of ferrite phase in the materials the ferroelectric hysteresis loops were roundish and not typical for classical ferroelectric material. The break down field was found to be similar for all compositions. Leakage current measurements have shown the existence of different types of conductivity mechanisms in each material. The impedance analysis suggested a bit stronger impact of grain boundaries on total conductivity of the composites and the mechanism of polaronic conduction of two types. The magnetization of the composites is lower than for the pure ferrite phase and corresponds to the weight fraction of the ferrite phase. The soft magnetic nature of these composites might be very useful for development of multifunctional devices which will be able to switch the magnetization with small external magnetic field. Humidity sensing properties of the prepared ceramics were also investigated. |
| first_indexed | 2024-04-12T21:37:19Z |
| format | Article |
| id | doaj.art-f3798c704eea44d5a4a5d4f0bca1bbce |
| institution | Directory Open Access Journal |
| issn | 1820-6131 2406-1034 |
| language | English |
| last_indexed | 2024-04-12T21:37:19Z |
| publishDate | 2020-03-01 |
| publisher | University of Novi Sad |
| record_format | Article |
| series | Processing and Application of Ceramics |
| spelling | doaj.art-f3798c704eea44d5a4a5d4f0bca1bbce2022-12-22T03:15:51ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312406-10342020-03-0114191810.2298/PAC2001009VStudy of barium titanate/nickel-zinc ferrite based composites: Electrical and magnetic properties and humidity sensitivityMirjana M. Vijatovic Petrovic0Adis Dzunuzovic1Jelena D. Bobic2Nikola Ilic3Ivan Stijepovic4https://orcid.org/0000-0001-6439-5804Biljana D. Stojanovic5Institute for Multidisciplinary Research, Belgrade University, Kneza Višeslava 1, Belgrade, SerbiaInstitute for Multidisciplinary Research, Belgrade University, Kneza Višeslava 1, Belgrade, SerbiaInstitute for Multidisciplinary Research, Belgrade University, Kneza Višeslava 1, Belgrade, SerbiaInstitute for Multidisciplinary Research, Belgrade University, Kneza Višeslava 1, Belgrade, SerbiaFaculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, Novi Sad, SerbiaInstitute for Multidisciplinary Research, Belgrade University, Kneza Višeslava 1, Belgrade, SerbiaComposites based on barium titanate and nickel zinc ferrite doped with cooper and samarium were prepared by a mixing method. The formation of barium titanate tetragonal crystal structure and nickel zinc ferrite cubic spinel structure was identified. Polygonal grains were formed in all three types of ceramics. Due to the very high conductivity of ferrite phase in the materials the ferroelectric hysteresis loops were roundish and not typical for classical ferroelectric material. The break down field was found to be similar for all compositions. Leakage current measurements have shown the existence of different types of conductivity mechanisms in each material. The impedance analysis suggested a bit stronger impact of grain boundaries on total conductivity of the composites and the mechanism of polaronic conduction of two types. The magnetization of the composites is lower than for the pure ferrite phase and corresponds to the weight fraction of the ferrite phase. The soft magnetic nature of these composites might be very useful for development of multifunctional devices which will be able to switch the magnetization with small external magnetic field. Humidity sensing properties of the prepared ceramics were also investigated.http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2047%2002.pdfcompositeselectrical propertiesmagnetic propertieshumidity sensitivity |
| spellingShingle | Mirjana M. Vijatovic Petrovic Adis Dzunuzovic Jelena D. Bobic Nikola Ilic Ivan Stijepovic Biljana D. Stojanovic Study of barium titanate/nickel-zinc ferrite based composites: Electrical and magnetic properties and humidity sensitivity Processing and Application of Ceramics composites electrical properties magnetic properties humidity sensitivity |
| title | Study of barium titanate/nickel-zinc ferrite based composites: Electrical and magnetic properties and humidity sensitivity |
| title_full | Study of barium titanate/nickel-zinc ferrite based composites: Electrical and magnetic properties and humidity sensitivity |
| title_fullStr | Study of barium titanate/nickel-zinc ferrite based composites: Electrical and magnetic properties and humidity sensitivity |
| title_full_unstemmed | Study of barium titanate/nickel-zinc ferrite based composites: Electrical and magnetic properties and humidity sensitivity |
| title_short | Study of barium titanate/nickel-zinc ferrite based composites: Electrical and magnetic properties and humidity sensitivity |
| title_sort | study of barium titanate nickel zinc ferrite based composites electrical and magnetic properties and humidity sensitivity |
| topic | composites electrical properties magnetic properties humidity sensitivity |
| url | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2047%2002.pdf |
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