High-temperature superconducting magnetic shields formed by deep drawing

A new method for the construction of high-temperature superconducting magnetic shielding structures has been demonstrated. With this process, a ceramic laminate of high-temperature superconducting powder and silver metal sheets is formed and then shaped into a cylindrical magnetic shield by deep drawing before being sintered. Two types of superconducting powders were used in this experiment, YBa/sub 2/Cu/sub 3/O/sub 7/ and Bi/sub 1.8/Pb/sub 0.4/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/, which exhibited shielding factors of 1100 and 330, respectively.