| 摘要 |
<p>The present invention relates to a precursor material for the preparation of superconductors based on Bi 2 Sr 2 Ca 1 Cu 2 O 8+´ wherein the precursor material is as close to equilibrium state as possible, i.e., has less than 5 % in average 2201 intergrowths in the 2212 phase; in particular, the present invention relates to a precursor material, which is converted to the final conductor by partial melt processing, as well as to a process for the production of the precursor material and the use of the precursor material for preparing superconductors based on Bi 2 Sr 2 Ca 1 Cu 2 O 8+´ .</p> |
