Determination of the inter- and intra-granular critical currents in superconducting YBa2Cu3O7 welds

作者: B Bozzo , S Iliescu , E Bartolomé , A Palau , X Granados

DOI: 10.1088/0953-2048/18/9/015

关键词:

摘要: A method for determining simultaneously the inter- and intra-grain critical currents has been developed in welded YBa2Cu3O7 (YBCO) ceramics by solving Inverse Problem local maps of magnetic field remanent state. From that current distribution, density flowing through superconducting weld as well circulating inside grains can be deduced. The is discussed it applied to several examples YBCO/Ag/YBCO welds. results obtained show possible obtain joints with a quality at same level starting material.

参考文章(28)
Chan-Joong Kim, Ho-Jin Kim, Young A Jee, Gye-Won Hong, Jin-Ho Joo, Sang-Chul Han, Young-Hee Han, Tae-Hyun Sung, Sang-Joon Kim, Multiseeding with (100)/(100) grain junctions in top-seeded melt growth processed YBCO superconductors Physica C-superconductivity and Its Applications. ,vol. 338, pp. 205- 212 ,(2000) , 10.1016/S0921-4534(00)00310-5
K. Salama, V. Selvamanickam, Joining of high current bulk Y-Ba-Cu-O superconductors Applied Physics Letters. ,vol. 60, pp. 898- 900 ,(1992) , 10.1063/1.106498
H Zheng, H Claus, L Chen, A.P Paulikas, B.W Veal, B Olsson, A Koshelev, J Hull, G.W Crabtree, Transport currents measured in ring samples: test of superconducting weld Physica C-superconductivity and Its Applications. ,vol. 350, pp. 17- 23 ,(2001) , 10.1016/S0921-4534(00)01566-5
Ch. Jooss, B. Bringmann, H. Walter, A. Leenders, H.C. Freyhardt, Magneto-optical study of current distributions at grain boundaries in YBaCuO melt-textured monoliths Physica C: Superconductivity. ,vol. 341-348, pp. 1423- 1426 ,(2000) , 10.1016/S0921-4534(00)00963-1
S Iliescu, X Granados, E Bartolomé, S Sena, A E Carrilllo, T Puig, X Obradors, J E Evetts, High critical current YBa2Cu3O7 artificial joints using Ag foils as welding agent Superconductor Science and Technology. ,vol. 17, pp. 182- 185 ,(2004) , 10.1088/0953-2048/17/1/032
M Carrera, J Amor s, X Obradors, J Fontcuberta, A new method of computation of current distribution maps in bulk high-temperature superconductors: analysis and validation Superconductor Science and Technology. ,vol. 16, pp. 1187- 1194 ,(2003) , 10.1088/0953-2048/16/10/311
X. Granados, B. Bozzo, S. Iliescu, E. Bartolome, T. Puig, X. Obradors, J. Amoros, M. Carrera, Critical current determination of artificially welded HTS samples by in-field Hall mapping technique IEEE Transactions on Applied Superconductivity. ,vol. 15, pp. 3632- 3635 ,(2005) , 10.1109/TASC.2005.849377
X. Granados, S. Sena, E. Bartolome, A. Palau, T. Puig, X. Obradors, M. Carrera, J. Amoros, H. Claus, Characterization of superconducting rings using an in-field Hall probe magnetic mapping system IEEE Transactions on Applied Superconductivity. ,vol. 13, pp. 3667- 3670 ,(2003) , 10.1109/TASC.2003.812426
S. Iliescu, S. Sena, X. Granados, E. Bartolome, T. Puig, X. Obradors, M. Carrera, J. Amores, S. Krakunovska, T. Habisreuther, In-field Hall probe mapping system for characterization of YBCO welds IEEE Transactions on Applied Superconductivity. ,vol. 13, pp. 3136- 3139 ,(2003) , 10.1109/TASC.2003.812123
R. A. Doyle, A. D. Bradley, W. Lo, D. A. Cardwell, A. M. Campbell, Ph. Vanderbemden, R. Cloots, High field behavior of artificially engineered boundaries in melt-processed YBa2Cu3O7−δ Applied Physics Letters. ,vol. 73, pp. 117- 119 ,(1998) , 10.1063/1.121786