Microstructural and high temperature dielectric, ferroelectric and complex impedance spectroscopic properties of BiFeO3 modified NBT-BT lead free ferroelectric ceramics.
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| Title: | Microstructural and high temperature dielectric, ferroelectric and complex impedance spectroscopic properties of BiFeO3 modified NBT-BT lead free ferroelectric ceramics. |
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| Authors: | Sameera Devi, Ch1, Kumar, GS1, Prasad, G1, Buchi Suresh, M2 |
| Source: | Materials Science & Engineering: B. Feb2018, Vol. 228, p38-44. 7p. |
| Subjects: | Ferroelectric crystals, Dielectrics, Microstructure, Electric conductivity, X-ray diffraction |
| Abstract: | Solid solutions of nano structured Na 0.5 Bi 0.5 TiO 3 -Ba 0.925 Nd 0.05 TiO 3 -BiFeO 3 (0.7NBT-0.2BT1-0.1BF & 0.7NBT-0.1BT1-0.2BF) compositions were prepared by the conventional sol-gel method and the effect of BiFeO 3 addition on microstructure, dielectric, ferroelectric and high temperature electrical properties of NBT-BT1-BF ceramics were investigated through XRD, SEM, dielectric and electrical characterization. X-ray diffraction patterns are well indexed and found that samples are crystallized in rhombohedral phase. SEM images have shown uniform distribution of grains and change in grain size with BiFeO 3 concentration. The samples exhibited relaxor behavior, which is accompanied by a shift in ε max and Z'' towards high temperature with increasing BiFeO 3 concentration. The grain and grain boundary response as well as the relaxation processes at different frequencies and temperatures were discussed. These observations suggest that BiFeO 3 addition to NBT-BT1 ceramics can be considered as a potential lead free ceramic system in multi-ferroic devices. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials Science & Engineering: B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 127237080 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Microstructural and high temperature dielectric, ferroelectric and complex impedance spectroscopic properties of BiFeO3 modified NBT-BT lead free ferroelectric ceramics. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sameera+Devi%2C+Ch%22">Sameera Devi, Ch</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kumar%2C+GS%22">Kumar, GS</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Prasad%2C+G%22">Prasad, G</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Buchi+Suresh%2C+M%22">Buchi Suresh, M</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+Science+%26+Engineering%3A+B%22">Materials Science & Engineering: B</searchLink>. Feb2018, Vol. 228, p38-44. 7p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Ferroelectric+crystals%22">Ferroelectric crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectrics%22">Dielectrics</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+conductivity%22">Electric conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Solid solutions of nano structured Na 0.5 Bi 0.5 TiO 3 -Ba 0.925 Nd 0.05 TiO 3 -BiFeO 3 (0.7NBT-0.2BT1-0.1BF & 0.7NBT-0.1BT1-0.2BF) compositions were prepared by the conventional sol-gel method and the effect of BiFeO 3 addition on microstructure, dielectric, ferroelectric and high temperature electrical properties of NBT-BT1-BF ceramics were investigated through XRD, SEM, dielectric and electrical characterization. X-ray diffraction patterns are well indexed and found that samples are crystallized in rhombohedral phase. SEM images have shown uniform distribution of grains and change in grain size with BiFeO 3 concentration. The samples exhibited relaxor behavior, which is accompanied by a shift in ε max and Z'' towards high temperature with increasing BiFeO 3 concentration. The grain and grain boundary response as well as the relaxation processes at different frequencies and temperatures were discussed. These observations suggest that BiFeO 3 addition to NBT-BT1 ceramics can be considered as a potential lead free ceramic system in multi-ferroic devices. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials Science & Engineering: B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.mseb.2017.11.005 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 38 Subjects: – SubjectFull: Ferroelectric crystals Type: general – SubjectFull: Dielectrics Type: general – SubjectFull: Microstructure Type: general – SubjectFull: Electric conductivity Type: general – SubjectFull: X-ray diffraction Type: general Titles: – TitleFull: Microstructural and high temperature dielectric, ferroelectric and complex impedance spectroscopic properties of BiFeO3 modified NBT-BT lead free ferroelectric ceramics. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sameera Devi, Ch – PersonEntity: Name: NameFull: Kumar, GS – PersonEntity: Name: NameFull: Prasad, G – PersonEntity: Name: NameFull: Buchi Suresh, M IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 09215107 Numbering: – Type: volume Value: 228 Titles: – TitleFull: Materials Science & Engineering: B Type: main |
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