The investigation of magnetic levitation performances of single grain YBCO at different temperatures

Guner S. B., Celik S., Tomakin M.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.705, ss.247-252, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 705
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.jallcom.2017.02.134
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.247-252
  • Anahtar Kelimeler: Superconductors Crystal growth, Magnetic measurements, Scanning electron microscopy (SEM), X-ray diffraction (XRD), BA-CU-O, SUPERCONDUCTING PROPERTIES, BULK SUPERCONDUCTORS, FORCE, FABRICATION, GROWTH, ALIGNMENT
  • Recep Tayyip Erdoğan Üniversitesi Adresli: Evet

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.