Characterization of a Cylindrical Superconductor Disk Prepared by the Wet Technique with Microstructure Analysis and Levitation Force Measurements Using a Permanent Magnet
Küçük Resim Yok
Tarih
2009
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
PHYSICAL SOC REPUBLIC CHINA
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The levitation force between a cylindrical superconducting disk (CSCD) and a permanent magnet (Bi = 0.15 T) in the zero-field-cooled (ZFC) regime has been investigated at liquid nitrogen temperature (77 K). The CSCD showed a lower repulsive force. It was considered that the changes in the levitation force are related to the grain orientation, the homogeneity, and the number of the pinning centers in the samples. From the structural analysis, it was found that the volume percentages of the Bi-2223 and Bi-2212 phase are 81% and 19% in the CSCD, respectively. The calculated a and c lattice parameters of the Bi-2212 and Bi-2223 phases are a=b= 5.4055 angstrom (Bi-2212), 5.4102 angstrom (Bi-2223), and c = 30.7522 angstrom (Bi-2212), 37.0327 angstrom (Bi-2223), respectively.
Açıklama
Anahtar Kelimeler
Kaynak
CHINESE JOURNAL OF PHYSICS
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
47
Sayı
5
