Effect of cooling rates on bare bulk and silver wrapped pellets of Bi-2223 superconductor

Terzioglu C., Ozturk O., Kilic A., Gencer A., Belenli I.

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, cilt.434, sa.2, ss.153-156, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 434 Sayı: 2
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.physc.2005.12.059
  • Dergi Adı: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.153-156
  • Anahtar Kelimeler: cooling rate, Bi-2223 phase, oxygen content, superconduction transition, weak-links
  • Ankara Üniversitesi Adresli: Evet

Özet

We have examined the effect of cooling rates on oxygen content of Bi-2223 phase samples with and without silver sheating. Two sets of samples with and without silver sheating were annealed under identical conditions and cooled with rates of 10 degrees C/h, 25 degrees C/h, 50 degrees C/h, 75 degrees C/h, and 100 degrees C/h. XRD examination of the samples showed that a high percentage of Bi-2223 was obtained. Microstructure examinations were performed by scanning electron microscopy. Resistive and magnetic transitions of the samples were studied. All the reported data were discussed and related. (c) 2005 Elsevier B.V. All rights reserved.