BI-SR-CA-CU-O SUPERCONDUCTING THIN PLATES PREPARED BY GLASS-CERAMIC PROCESSING - DEPENDENCE OF T-C ON THE THICKNESS

The melt of Bi-Sr-Ca-Cu-O (BSCCO) was quenched by splatting using iron plates, resulting in formation of the glassy plates (0.3-0.7 mm thick ness), The plates were converted into superconductors by reheating in air. The critical temperature, T-c, depends on the thickness. The chan ge in T-c is discussed in terms of the difference in the amount of oxy gen absorption and in crystallization behavior of the glassy plate dur ing the reheating process between the glassy phase in the interior and that around the surface, It was found that high-T-c glass-ceramic thi n plates can be prepared by controlling the amount or the rate of oxyg en supply.