【摘 要】
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In Dec.5,1988,we successfully developedsome high J_c Y-Ba-Cu-O superconductortape on a nickel substrate by means of powderrolling.The tape is 0.94mm~2 in cross
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In Dec.5,1988,we successfully developedsome high J_c Y-Ba-Cu-O superconductortape on a nickel substrate by means of powderrolling.The tape is 0.94mm~2 in cross-sectionand its critical current is 21.0A at 77K and inzero applied field.X-ray diffraction analysis indicated thatthe composite tape_2 which is made by rollingYBa_2Cu_3O_(7-x) superconductor powder evenlyon Ni substrate,is found to have someYBa_2CU_3O_(7-x) tetragonal phase which will turn
In Dec. 5, 1988, we successfully developed high high J_c Y-Ba-Cu-O superconductortape on a nickel substrate by means of powder rolling. The tape is 0.94mm ~ 2 in cross-section and its critical current is 21.0A at 77K and inzero applied field. X-ray diffraction analysis showed that the composite tape_2 which is made by rollingYBa_2Cu_3O_ (7-x) superconductor powder evenlyon Ni substrate, is found to have someYBa_2CU_3O_ (7-x) tetragonal phase which will turn
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