Minimum quench energy studies on Bi-2223/Ag tape operating at nitrogen atmosphere

Minimum quench energy (MQE) and the effect of quench energy on quench propagation velocity of Bi-2223/Ag superconducting tapes are studied in this paper. The experiments were carried out with zero background magnetic field under the cooling condition of nitrogen atmosphere. By measuring quench behav...

Full description

Saved in:
Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2003-04, Vol.386 (1-4), p.162-165
Main Authors: Wu, Chun-li, Bai, Zhi-ming, Li, Jing-hui, Wang, Jin-xing
Format: Article
Language:English
Subjects:
Bi-2223/Ag tape
MQE
Nitrogen atmosphere
Quench propagation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Minimum quench energy (MQE) and the effect of quench energy on quench propagation velocity of Bi-2223/Ag superconducting tapes are studied in this paper. The experiments were carried out with zero background magnetic field under the cooling condition of nitrogen atmosphere. By measuring quench behavior of sample tape near heater, MQE can be obtained quickly. The experiments show that once quench propagates, propagation velocity has nothing to do with quench energy. Furthermore, MQE is relevant to a width of heating wire. Only when the energy pulse of heater is large enough to make the triggered region reach minimum propagation zone, quench propagation can be initiated. In addition, we have also derived the transport current dependence of MQE in Bi-2223/Ag superconducting multifilament tape.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(02)02246-3