Studies of High-Temperature Superconductors - Advances in Research and Applications: The BSCCO System-IIAnant Narlikar Contents: Phase Formation and Texture Development in Ag-Sheathed Bi, Pb(2223) Tapes; Microstructural Dynamics in Bi-2223/Ag Tapes; Phase-Relations in System Bi203-PbO-SrO-CaO-CuO; Highly Reactive (Bi, Pb)-2223 Precursor Powder Via Process Tuning; Effect of Flux Creep on Transport Property of Bi-Based Compound; Effect of Gamma Irradiation on BSCCO Superconductor |
Contents
| 1 | |
| 4 | |
experimental remarks | 11 |
new results from insitu diffraction experiments | 13 |
5 Conclusions | 25 |
6 References | 26 |
MICROSTRUCTURAL DYNAMICS IN Bi2223Ag TAPES | 29 |
2 Hard Xray diffraction setup | 32 |
7 Conclusions | 113 |
8 References | 115 |
| 119 | |
2 Experimental | 122 |
3 Results and discussion | 125 |
4 Conclusions | 141 |
5 References | 142 |
EFFECT OF FLUX CREEP ON TRANSPORT PROPERTY OF BiBASED COMPOUND | 143 |
3 Insitu hard Xray diffraction studies of standard heat treatments | 42 |
4 Hard Xray diffraction study of equilibrium phenomena and reversibility | 60 |
5 3DXRD feasibility study | 70 |
6 Transmission electron microscopy investigations | 73 |
7 Summary of microstructural dynamics | 81 |
8 References | 83 |
PHASE RELATIONS IN SYSTEM Bi₂O₃PвOSʀOCᴀOCᴜO | 89 |
2 Phase equilibrium diagram | 90 |
3 The solid solution region of the 2212 phase | 99 |
4 The solid solution region of the 2223 phase | 103 |
5 The influence of Ag on the phase relations | 108 |
6 Influence of CO₂ on the 2212 | 112 |
2 Numerical results | 145 |
3 Experimental results | 158 |
4 Summary | 167 |
| 169 | |
EFFECT OF GAMMA IRRADIATION ON BSCCO SUPERCONDUCTORS | 171 |
3 Dissipative behavior | 173 |
4 Vortex flux planning | 176 |
5 Conclusion | 178 |
6 References | 179 |
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addition amount analysis angle annealing appears Appl applied average boundaries c-axis ceramic compared composition concentration constant conversion corresponding critical current decreases density dependence determined dI/dt diffraction discussed dl/dt effect electric equation equilibrium evolution experimental experiments field Figure final Flükiger flux followed formation function grain boundaries grains growth heating higher increase indicating intensity liquid magnetic Majewski materials measurements mechanism melting method neutron observed obtained occurs oxygen parameters partial patterns peak performed phase Phys Physica points powder precursor prepared present range reaction reference reflection region reported respectively sample secondary phases seen sheath shown in Fig shows similar solid starting stoichiometry structure studies Supercond superconducting tapes techniques temperature texture thermal thickness transformation treatment units V-I curve variation volume X-ray
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Page 169 - ACKNOWLEDGEMENT This work was supported by the Ministry of Science and Technology of Korea through the National Research Laboratory Program.