Quench characteristics of a Cu-Stabilized 2G HTS conductor
Young, E., Yang, Y. and Min, H. (2011) Quench characteristics of a Cu-Stabilized 2G HTS conductor. IEEE Transactions on Applied Superconductivity, 21, (3), 1-4. (doi:10.1109/TASC.2010.2083615).
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The prospect of medium/high field superconducting magnets using 2G HTS tapes is approaching to reality with continued enhancement in the performance of these conductors. Direct measurements of 1d adiabatic quench initiation and propagation of a Cu-stabilized 2G conductor have been carried out with spatial-temporal recording of temperature and voltage following the deposition of various local heat pulses to the conductor at different temperatures between 40K and 64K carrying different transport currents. It was found that the stabilizer-free 2G tape maintains the unique characteristics previously measured in non-stabilized tape of increasing MPZ with transport current and higher quench energy at lower temperatures. The minimum quench energy, minimum propagation zone (MPZ) length are determined as a function of temperature and transport current. The change in MPZ size is investigated with measured temperature dependent E-J characteristics. The results add more detail to help understand the unique characteristics of increasing MPZ with transport current and lower temperatures.
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TP Chemical technology
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Thermofluids and Superconductivity
Faculty of Engineering and the Environment > Engineering Sciences
|Date Deposited:||03 Sep 2010 07:43|
|Last Modified:||19 Aug 2013 13:30|
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