Figure 9.

(a) V-I curves of a typical Bi-2212 superconducting joint at 4.2 K and magnetic fields of up to 14 T. (b) Comparison of I_c properties at 4.2 K between open-ended short Bi-2212 conductor samples and the Bi-2212 superconducting joint. Joint and conductor samples were both reacted in a total pressure of 1 bar flowing oxygen. For the joint, the field direction is parallel to the joint length section as illustrated in figure 8. For the short samples, the field direction is either parallel or perpendicular to the sample length.