Conditions of sharp cube texture formation in thin tapes of Cu–Ni alloys for second-generation high-temperature superconductors

We have studied the formation of sharp cube texture in Cu-Ni alloy tapes with nickel content 10, 20, 30, and 40 at%, manufactured by cold rolling to 98.6–99% and subsequent recrystallization annealing. Optimum regimes of annealing are determined for all these alloys, which allow a sharp cube texture with $\sim$ 95% cubic grains to be obtained.