Strong texture correlation between (Bi,Pb) sub(2)Sr sub(2)Ca sub(2)Cu sub(3)O sub(x) and its precursor (Bi,Pb) sub(2)Sr sub(2)Ca sub(2)Cu sub(2)O sub(x)

The diffusion couple technique was used to study the texturing mechanism of (Bi,Pb) sub(2)Sr sub(2)Ca sub(2)Cu sub(2)O sub(x) (2223) phase to understand the effect of the initial texture of its precursor 2212 phase and its reaction on 2223 texture. A strong correlation exists between 2223 texture and 2212 texture. The texturing of 2223 during 2223 phase formation or reaction-induced texture agrees with the preferential 2223 grain growth mechanism controlled by two competitive processes. The presence of a silver layer and the deformation resulting from cold-rolling or uniaxial pressing act on 2223 texture development through their effects on the two competing processes.