Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store Energy
This work investigates the dielectric properties of barium titanate/gadolinium ferrite ceramic composites, with different concentrations of each material. Our objective was to increase the storage ability of this material, finding a compromise between high permittivity and low dielectric losses. A t...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/13/13/1955 |
| _version_ | 1797591156381450240 |
|---|---|
| author | Clara Baivier Imen Hammami Ratiba Benzerga Manuel P. F. Graça Luís C. Costa |
| author_facet | Clara Baivier Imen Hammami Ratiba Benzerga Manuel P. F. Graça Luís C. Costa |
| author_sort | Clara Baivier |
| collection | DOAJ |
| description | This work investigates the dielectric properties of barium titanate/gadolinium ferrite ceramic composites, with different concentrations of each material. Our objective was to increase the storage ability of this material, finding a compromise between high permittivity and low dielectric losses. A two-step sintering procedure was used in the preparation of the composites to attain the desired results. Their morphological, structural and electrical properties were tested using scanning electron microscopy, X-Ray powder diffraction and impedance spectroscopy, respectively. Dielectric characterizations were performed on the frequency band of 100 Hz–1 MHz and for different temperatures (180–380 K). The best compromise between barium titanate and gadolinium ferrite in the composition was calculated in order to obtain a potential material for electrical energy storage. The sample with 25% gadolinium ferrite presented the best results. The dielectric constant reached values of the order of 2000, at 1 kHz and 340 K. It was also important not to have very high losses, and this was confirmed by the calculated loss tangent. |
| first_indexed | 2024-03-11T01:33:31Z |
| format | Article |
| id | doaj.art-b22b03e365104d5196bde1fb4f2cc525 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T01:33:31Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-b22b03e365104d5196bde1fb4f2cc5252023-11-18T17:11:50ZengMDPI AGNanomaterials2079-49912023-06-011313195510.3390/nano13131955Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store EnergyClara Baivier0Imen Hammami1Ratiba Benzerga2Manuel P. F. Graça3Luís C. Costa4CNRS, IETR–UMR 6164, University of Rennes, 35000 Rennes, FranceI3N and Department of Physics, University of Aveiro, 3810-193 Aveiro, PortugalCNRS, IETR–UMR 6164, University of Rennes, 35000 Rennes, FranceI3N and Department of Physics, University of Aveiro, 3810-193 Aveiro, PortugalI3N and Department of Physics, University of Aveiro, 3810-193 Aveiro, PortugalThis work investigates the dielectric properties of barium titanate/gadolinium ferrite ceramic composites, with different concentrations of each material. Our objective was to increase the storage ability of this material, finding a compromise between high permittivity and low dielectric losses. A two-step sintering procedure was used in the preparation of the composites to attain the desired results. Their morphological, structural and electrical properties were tested using scanning electron microscopy, X-Ray powder diffraction and impedance spectroscopy, respectively. Dielectric characterizations were performed on the frequency band of 100 Hz–1 MHz and for different temperatures (180–380 K). The best compromise between barium titanate and gadolinium ferrite in the composition was calculated in order to obtain a potential material for electrical energy storage. The sample with 25% gadolinium ferrite presented the best results. The dielectric constant reached values of the order of 2000, at 1 kHz and 340 K. It was also important not to have very high losses, and this was confirmed by the calculated loss tangent.https://www.mdpi.com/2079-4991/13/13/1955nanocompositesdielectric propertiesenergy storageimpedance spectroscopy |
| spellingShingle | Clara Baivier Imen Hammami Ratiba Benzerga Manuel P. F. Graça Luís C. Costa Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store Energy Nanomaterials nanocomposites dielectric properties energy storage impedance spectroscopy |
| title | Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store Energy |
| title_full | Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store Energy |
| title_fullStr | Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store Energy |
| title_full_unstemmed | Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store Energy |
| title_short | Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store Energy |
| title_sort | barium titanate gadolinium ferrite a new material composite to store energy |
| topic | nanocomposites dielectric properties energy storage impedance spectroscopy |
| url | https://www.mdpi.com/2079-4991/13/13/1955 |
| work_keys_str_mv | AT clarabaivier bariumtitanategadoliniumferriteanewmaterialcompositetostoreenergy AT imenhammami bariumtitanategadoliniumferriteanewmaterialcompositetostoreenergy AT ratibabenzerga bariumtitanategadoliniumferriteanewmaterialcompositetostoreenergy AT manuelpfgraca bariumtitanategadoliniumferriteanewmaterialcompositetostoreenergy AT luisccosta bariumtitanategadoliniumferriteanewmaterialcompositetostoreenergy |