Sintering behavior and electrical properties of the paraelectric/dielectric composite system BST/MBO.
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| Title: | Sintering behavior and electrical properties of the paraelectric/dielectric composite system BST/MBO. |
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| Authors: | Häuser, K.1 (AUTHOR) kevin.haeuser@kit.edu, Azmi, R.1 (AUTHOR), Agrawal, P.2 (AUTHOR), Jakoby, R.2 (AUTHOR), Maune, H.2 (AUTHOR), Hoffmann, M.J.3 (AUTHOR), Binder, J.R.1 (AUTHOR) |
| Source: | Journal of the European Ceramic Society. Nov2021, Vol. 41 Issue 14, p7022-7028. 7p. |
| Subjects: | Ceramics, Dielectric properties, Dielectrics, Sintering, Quality factor, Image analysis |
| Abstract: | The composite system Ba 0.6 Sr 0.4 TiO 3 /Mg 3 B 2 O 6 (BST/MBO) was investigated in regard to the influence of sintering temperature and composition on the dielectric properties. Dilatometry measurements were carried out at up to 1200 °C. At 1050 °C, all composites with an MBO content of 22.0 vol% or more showed densities over 90 % of the theoretical value. An in-situ XRD study was conducted at up to 1200 °C. The formation of Mg 2 TiO 4 was detected starting at 1120 °C. These data sets were used to make a set of compositions ranging from 17.8–79.7 vol% MBO. At 1050 °C, the element distribution at the BST/MBO interfaces was investigated via EDX and ToF-SIMS. It was observed that titanium migrates from the BST into the MBO, mostly in the interface region. The microstructure of the different compositions was determined via SEM and image analysis. Traces of a third phase were found even for samples sintered at 1050 °C. The dielectric properties of the samples were measured at 13.56 MHz and compared to the expected behavior from the literature. It was found that compositions in the middle of the spectrum showed reduced permittivity, loss, and tunability, resulting in an overall increase in the material quality factor when compared to the chosen model. This was attributed to the passivation of the BST at the interfaces. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of the European Ceramic Society 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: 152163437 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Sintering behavior and electrical properties of the paraelectric/dielectric composite system BST/MBO. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Häuser%2C+K%2E%22">Häuser, K.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> kevin.haeuser@kit.edu</i><br /><searchLink fieldCode="AR" term="%22Azmi%2C+R%2E%22">Azmi, R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Agrawal%2C+P%2E%22">Agrawal, P.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jakoby%2C+R%2E%22">Jakoby, R.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Maune%2C+H%2E%22">Maune, H.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hoffmann%2C+M%2EJ%2E%22">Hoffmann, M.J.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Binder%2C+J%2ER%2E%22">Binder, J.R.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+the+European+Ceramic+Society%22">Journal of the European Ceramic Society</searchLink>. Nov2021, Vol. 41 Issue 14, p7022-7028. 7p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Ceramics%22">Ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+properties%22">Dielectric properties</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectrics%22">Dielectrics</searchLink><br /><searchLink fieldCode="DE" term="%22Sintering%22">Sintering</searchLink><br /><searchLink fieldCode="DE" term="%22Quality+factor%22">Quality factor</searchLink><br /><searchLink fieldCode="DE" term="%22Image+analysis%22">Image analysis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The composite system Ba 0.6 Sr 0.4 TiO 3 /Mg 3 B 2 O 6 (BST/MBO) was investigated in regard to the influence of sintering temperature and composition on the dielectric properties. Dilatometry measurements were carried out at up to 1200 °C. At 1050 °C, all composites with an MBO content of 22.0 vol% or more showed densities over 90 % of the theoretical value. An in-situ XRD study was conducted at up to 1200 °C. The formation of Mg 2 TiO 4 was detected starting at 1120 °C. These data sets were used to make a set of compositions ranging from 17.8–79.7 vol% MBO. At 1050 °C, the element distribution at the BST/MBO interfaces was investigated via EDX and ToF-SIMS. It was observed that titanium migrates from the BST into the MBO, mostly in the interface region. The microstructure of the different compositions was determined via SEM and image analysis. Traces of a third phase were found even for samples sintered at 1050 °C. The dielectric properties of the samples were measured at 13.56 MHz and compared to the expected behavior from the literature. It was found that compositions in the middle of the spectrum showed reduced permittivity, loss, and tunability, resulting in an overall increase in the material quality factor when compared to the chosen model. This was attributed to the passivation of the BST at the interfaces. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of the European Ceramic Society 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.jeurceramsoc.2021.07.008 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 7022 Subjects: – SubjectFull: Ceramics Type: general – SubjectFull: Dielectric properties Type: general – SubjectFull: Dielectrics Type: general – SubjectFull: Sintering Type: general – SubjectFull: Quality factor Type: general – SubjectFull: Image analysis Type: general Titles: – TitleFull: Sintering behavior and electrical properties of the paraelectric/dielectric composite system BST/MBO. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Häuser, K. – PersonEntity: Name: NameFull: Azmi, R. – PersonEntity: Name: NameFull: Agrawal, P. – PersonEntity: Name: NameFull: Jakoby, R. – PersonEntity: Name: NameFull: Maune, H. – PersonEntity: Name: NameFull: Hoffmann, M.J. – PersonEntity: Name: NameFull: Binder, J.R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 09552219 Numbering: – Type: volume Value: 41 – Type: issue Value: 14 Titles: – TitleFull: Journal of the European Ceramic Society Type: main |
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