Superconducting properties of Bi2Sr2CaCu2Oy tape prepared by the continuous heat treatment technique

85m-long Bi2Sr2CaCu2Oy (Bi-2212)/Ag multilayer tape was successful fabricated, The tape was prepared by the slurry-painting technique. The multilayer tape was fabricated by stacking three Bi-2212/Ag monolayer tapes prepared by the slurry-painting technique, wrapping them with a Ag foil, and finally giving a continuous heat treatment of partial melting and slow cooling. The continuous heat treatment was done by moving the tape along the temperature gradient in a specially designed pipe furnace. Jc values of the wire were 8x103 A/cm2 at 77 K 0T and higher than 1x105A/cm2 at 4.2K, 12T. The variation of Jc value along the 85m-long tape was within 15%. The multilayer tapes showed good strain tolerance of Jc. Jc values unchanged until the bending strain of 0.7% was applied. A small coil fabricated using the open-quotes React ampersand Windclose quotes technique had a Jc value almost equal to that of a short straight sample