The investigation of magnetic levitation performances of single grain YBCO at different temperatures
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Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Sa
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The temperature dependence of the magnetic levitation force has been investigated for single-grain YBCO bulk sample, 20 mm in diameter with a thickness of 8 mm, fabricated by top-seeded melt growth (TSMG) method using Nd123 seeded. The superconducting properties of the single grain YBCO bulk are studied by VSM (Vibrating Sample Magnetometer), the microstructures and the phase constituents of those that are seen by SEM (Scanning Electron Microscope) and XRD (X-ray Diffraction). The measurements of superconducting properties indicated that magnetic levitation forces of the sample were found 11.23, 10.81, 10.34, 9.23 and 7.02 N at the temperatures of 37, 47, 57, 67 and 77, respectively, and the values of the onset critical temperature (Tc) and the zero-field critical current density (Jc) are 89.3 K and 5.6 x 10(4) A/cm(2) at 77 K, respectively. This research is intended to help for the large scale superconductor levitation performances at different temperatures. (C) 2017 Elsevier B. V. All rights reserved.
Açıklama
Anahtar Kelimeler
Superconductors Crystal growth, Magnetic measurements, Scanning electron microscopy (SEM), X-ray diffraction (XRD)
Kaynak
Journal of Alloys and Compounds
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
705
