Sintering behaviour and dielectric properties of BaTiO3: Effect of borax addition
Barium titanate (BaTiO3) is a prominent ferroelectric material widely utilized in various electronic applications, due to its excellent dielectric properties. Lowering its sintering temperature, a highly demanded requirement in multilayer ceramic capacitors (MLCC), enables the use of metal-based ele...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Novi Sad
2024-12-01
|
| Series: | Processing and Application of Ceramics |
| Subjects: | |
| Online Access: | https://doiserbia.nb.rs/img/doi/1820-6131/2024/1820-61312404414O.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832544092696870912 |
|---|---|
| author | Othman Kolthoum I. Ali Mostafa El Sayed El-Houte Samia Imam |
| author_facet | Othman Kolthoum I. Ali Mostafa El Sayed El-Houte Samia Imam |
| author_sort | Othman Kolthoum I. |
| collection | DOAJ |
| description | Barium titanate (BaTiO3) is a prominent ferroelectric material widely utilized in various electronic applications, due to its excellent dielectric properties. Lowering its sintering temperature, a highly demanded requirement in multilayer ceramic capacitors (MLCC), enables the use of metal-based electrodes and consequently reduces the production cost. In the present work, we investigated the impact of using low melting glassy phases of borax (Na2B4O7 • 10H2O) in developing low-temperature-sintered BaTiO3 ceramics. The effects of borax addition on the densification, microstructure and dielectric properties of BaTiO3 ceramics were investigated. Different amounts of borax were added to BaTiO3 powders, and the compacts made from these mixtures were sintered at 1100 and 1150°C for 3 h. The results revealed that this small addition of borax can effectively reduce the sintering temperature of BaTiO3 to 1100°C. The presence of the borax liquid phase at the BaTiO3 grain boundaries enhanced densification at such low temperature, without formation of secondary phases or degradation of the dielectric properties. Relative permittivities up to 2410 and 7685 at room and Curie temperatures, respectively, were obtained. |
| format | Article |
| id | doaj-art-e5ebc7cfc2574f9695b4646b72673508 |
| institution | Kabale University |
| issn | 1820-6131 2406-1034 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | University of Novi Sad |
| record_format | Article |
| series | Processing and Application of Ceramics |
| spelling | doaj-art-e5ebc7cfc2574f9695b4646b726735082025-02-03T11:10:23ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312406-10342024-12-0118441442210.2298/PAC2404414OSintering behaviour and dielectric properties of BaTiO3: Effect of borax additionOthman Kolthoum I.0https://orcid.org/0009-0006-0728-2719Ali Mostafa El Sayed1https://orcid.org/0000-0002-2945-5362El-Houte Samia Imam2Metallurgy Department, NRC, Egyptian Atomic Energy Authority, Cairo, EgyptMetallurgy Department, NRC, Egyptian Atomic Energy Authority, Cairo, EgyptMetallurgy Department, NRC, Egyptian Atomic Energy Authority, Cairo, EgyptBarium titanate (BaTiO3) is a prominent ferroelectric material widely utilized in various electronic applications, due to its excellent dielectric properties. Lowering its sintering temperature, a highly demanded requirement in multilayer ceramic capacitors (MLCC), enables the use of metal-based electrodes and consequently reduces the production cost. In the present work, we investigated the impact of using low melting glassy phases of borax (Na2B4O7 • 10H2O) in developing low-temperature-sintered BaTiO3 ceramics. The effects of borax addition on the densification, microstructure and dielectric properties of BaTiO3 ceramics were investigated. Different amounts of borax were added to BaTiO3 powders, and the compacts made from these mixtures were sintered at 1100 and 1150°C for 3 h. The results revealed that this small addition of borax can effectively reduce the sintering temperature of BaTiO3 to 1100°C. The presence of the borax liquid phase at the BaTiO3 grain boundaries enhanced densification at such low temperature, without formation of secondary phases or degradation of the dielectric properties. Relative permittivities up to 2410 and 7685 at room and Curie temperatures, respectively, were obtained.https://doiserbia.nb.rs/img/doi/1820-6131/2024/1820-61312404414O.pdfbatio3sintering aidliquid phasedensificationdielectric properties |
| spellingShingle | Othman Kolthoum I. Ali Mostafa El Sayed El-Houte Samia Imam Sintering behaviour and dielectric properties of BaTiO3: Effect of borax addition Processing and Application of Ceramics batio3 sintering aid liquid phase densification dielectric properties |
| title | Sintering behaviour and dielectric properties of BaTiO3: Effect of borax addition |
| title_full | Sintering behaviour and dielectric properties of BaTiO3: Effect of borax addition |
| title_fullStr | Sintering behaviour and dielectric properties of BaTiO3: Effect of borax addition |
| title_full_unstemmed | Sintering behaviour and dielectric properties of BaTiO3: Effect of borax addition |
| title_short | Sintering behaviour and dielectric properties of BaTiO3: Effect of borax addition |
| title_sort | sintering behaviour and dielectric properties of batio3 effect of borax addition |
| topic | batio3 sintering aid liquid phase densification dielectric properties |
| url | https://doiserbia.nb.rs/img/doi/1820-6131/2024/1820-61312404414O.pdf |
| work_keys_str_mv | AT othmankolthoumi sinteringbehaviouranddielectricpropertiesofbatio3effectofboraxaddition AT alimostafaelsayed sinteringbehaviouranddielectricpropertiesofbatio3effectofboraxaddition AT elhoutesamiaimam sinteringbehaviouranddielectricpropertiesofbatio3effectofboraxaddition |