Comparing powder magnetization and transport critical current of Bi,Pb(2223) tapes
نویسندگان
چکیده
منابع مشابه
Anisotropy of the critical current in MgB2 tapes made of high energy milled precursor powder
For applications of MgB2 wires or tapes, high critical currents in high magnetic fields are essential. By using tapes in superconducting coils the anisotropic behaviour of the critical current, i.e. the dependence on the direction of the external field in relation to the tape surface, has to be taken into account. The anisotropy of MgB2 tapes with mechanically alloyed (MA) precursor powder and ...
متن کاملOptimization of an HTS Induction/Synchronous Motor According to Changing of HTS Tapes Critical Current by Analytical Hierarchy Process
This paper represents the performance of a squirrel-cage High Temperature Superconducting Induction/ Synchronous Motor (HTS-ISM) based on nonlinear electrical equivalent circuit. The structure of the HTS-ISM is the same as that of the squirrel-cage type induction machine, and the secondary windings are fabricated by the use of the HTS wires. It has already been shown that based on the experimen...
متن کاملTemperature dependence of critical currents and ac transport losses in (Bi,Pb)2Sr2Ca2Cu3Ox and YBa2Cu3Oy tapes
The critical currents and self-field ac losses of YBa2Cu3Oy coated conductors and (Bi, Pb)2Sr2Ca2Cu3Ox tapes were measured at several temperatures between 45 K and the respective critical temperature. The temperature dependence of ac losses was measured at 50 Hz using the lock-in method for a transport current. The frequency dependence of ac loss was measured at 55 K for transport current frequ...
متن کاملField mapping measurements to determine spatial and field dependence of critical current density in YBCO tapes
In this paper a measurement method that allows the determination of the critical current density of superconducting tape from field mapping measurements is presented. This contact-free method allows obtaining characteristics of the superconductor as a function of the position and of the applied flux density. With some modifications, this technique can be used for reel-to-reel measurements. The ...
متن کاملHigh critical current density and low anisotropy in textured Sr1−xKxFe2As2 tapes for high field applications
From the application point of view, large critical current densities J(c) (H) for superconducting wires are required, preferably for magnetic fields higher than 5 T. Here we show that strong c-axis textured Sr(1-x)K(x)Fe(2)As(2) tapes with nearly isotropic transport J(c) were fabricated by an ex-situ powder-in-tube (PIT) process. At 4.2 K, the J(c) values show extremely weak magnetic field depe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Appiled Superconductivity
سال: 2003
ISSN: 1051-8223
DOI: 10.1109/tasc.2003.812520