The size effect on the magnetic levitation force of MgB2 bulk superconductors
Yazarlar (5)
B. Savaskan
Karadeniz Technical University, Türkiye
E. T. Koparan
Zonguldak Bulent Ecevit University, Türkiye
S. B. Güner Recep Tayyip Erdogan University, Türkiye
Prof. Dr. Şükrü ÇELİK Sinop Üniversitesi, Türkiye
E. Yanmaz İstanbul Gelişim Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Cryogenics (Q3)
Dergi ISSN 0011-2275 Dergi Bilgileri (2016)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 12-2016
Cilt / Sayı / Sayfa 80 / 1 / 108–114 DOI 10.1016/j.cryogenics.2016.09.013
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0011227516300546
UAK Araştırma Alanları
Yoğun Madde Fiziği
Özet
In this study, the size effect on the magnetic levitation performance of disk-shaped MgB2 bulk superconductors and permanent magnets was investigated. MgB2 samples with varying diameters of 13 mm, 15 mm and 18 mm, each of which were 2 g in mass, were prepared by two-step solid state reaction method. Vertical levitation force measurements under both zero-field-cooled (ZFC) and field-cooled (FC) regimes were carried out at different temperatures of 20, 24 and 28 K. It was determined that the levitation force of the MgB2 strongly depends on both the diameters of the sample and the permanent magnet. In ZFC regime, the maximum levitation force value for the permanent magnet and the sample 18 mm in diameters reached to the 8.41 N at 20 K. In addition, in FC regime, attractive and repulsive force increased with increasing diameters of the sample and the permanent magnet. In that, the sample with 18 mm in diameter showed the highest attractive force value −3.46 N at 20 K and FC regime. The results obtained in this study are very useful in magnetic levitation devices as there is no detailed study on the size of superconductors and permanent magnets.
Anahtar Kelimeler
Attractive and repulsive force | Bulk superconductor | Levitation force | MgB2 | Permanent magnets
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 10
Scopus 12
The size effect on the magnetic levitation force of MgB2 bulk superconductors

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