Trapped magnetic field in a (NdFeB)–(MgB2) pair-type bulk magnet.
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| Title: | Trapped magnetic field in a (NdFeB)–(MgB2) pair-type bulk magnet. |
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| Authors: | Aldica, Gheorghe1, Burdusel, Mihail1,2, Badica, Petre1 badica2003@yahoo.com |
| Source: | Physica C. Oct2014, Vol. 505, p18-23. 6p. |
| Subjects: | Magnetic fields, Superconducting magnets, Permanent magnets, Magnetic flux, Polarity (Physics), Axial flow |
| Abstract: | Superconducting bulk discs, S, of 20 mm in diameter and 3.5 or 3.3 mm thickness of MgB 2 (pristine or added with cubic BN, respectively) with density above 97% were prepared by Spark Plasma Sintering. Discs were combined in a pair-type sandwich-like arrangement with a permanent NdFeB axially magnetised magnet, PM (∼0.5 T). Measurement of the trapped field, B tr , with temperature, time, and the reduction rate of the applied magnetic field was performed using a Hall sensor positioned at the centre between the superconductor and the permanent magnet. It is shown that the permanent magnet with certain polarity favors higher trapped field of the superconductor owing to suppression of flux jumps specific for high density MgB 2 samples. The B tr of the PM–S pair was 2.45 T (20 K) and 3.3 T (12 K). [ABSTRACT FROM AUTHOR] |
| Copyright of Physica C 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: 98142057 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Trapped magnetic field in a (NdFeB)–(MgB2) pair-type bulk magnet. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Aldica%2C+Gheorghe%22">Aldica, Gheorghe</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Burdusel%2C+Mihail%22">Burdusel, Mihail</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Badica%2C+Petre%22">Badica, Petre</searchLink><relatesTo>1</relatesTo><i> badica2003@yahoo.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Physica+C%22">Physica C</searchLink>. Oct2014, Vol. 505, p18-23. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink><br /><searchLink fieldCode="DE" term="%22Superconducting+magnets%22">Superconducting magnets</searchLink><br /><searchLink fieldCode="DE" term="%22Permanent+magnets%22">Permanent magnets</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+flux%22">Magnetic flux</searchLink><br /><searchLink fieldCode="DE" term="%22Polarity+%28Physics%29%22">Polarity (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Axial+flow%22">Axial flow</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Superconducting bulk discs, S, of 20 mm in diameter and 3.5 or 3.3 mm thickness of MgB 2 (pristine or added with cubic BN, respectively) with density above 97% were prepared by Spark Plasma Sintering. Discs were combined in a pair-type sandwich-like arrangement with a permanent NdFeB axially magnetised magnet, PM (∼0.5 T). Measurement of the trapped field, B tr , with temperature, time, and the reduction rate of the applied magnetic field was performed using a Hall sensor positioned at the centre between the superconductor and the permanent magnet. It is shown that the permanent magnet with certain polarity favors higher trapped field of the superconductor owing to suppression of flux jumps specific for high density MgB 2 samples. The B tr of the PM–S pair was 2.45 T (20 K) and 3.3 T (12 K). [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Physica C 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.physc.2014.07.001 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 18 Subjects: – SubjectFull: Magnetic fields Type: general – SubjectFull: Superconducting magnets Type: general – SubjectFull: Permanent magnets Type: general – SubjectFull: Magnetic flux Type: general – SubjectFull: Polarity (Physics) Type: general – SubjectFull: Axial flow Type: general Titles: – TitleFull: Trapped magnetic field in a (NdFeB)–(MgB2) pair-type bulk magnet. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Aldica, Gheorghe – PersonEntity: Name: NameFull: Burdusel, Mihail – PersonEntity: Name: NameFull: Badica, Petre IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 10 Text: Oct2014 Type: published Y: 2014 Identifiers: – Type: issn-print Value: 09214534 Numbering: – Type: volume Value: 505 Titles: – TitleFull: Physica C Type: main |
| ResultId | 1 |
