Fabrication of cube textured Ni tapes by in situ thermal and magnetic annealing

Fluorine-free sol–gel preparation of YBa2Cu3O7−x superconducting films by a direct annealing process

“…The reaction can be expressed by formula (3)(4). (3)(4) Therefore, the resulted YBCO precursor solution should contain at least three kinds of complexes mentioned above, and more probably, these three complexes will inter-react each other to form more complex organic groups. Due to the complexation between the organic groups and metallic ions, this fluorine-free YBCO solution is stable with a shelf-life of more than 1 year.…”

“…Today, process optimization has made the superconducting coated conductors derived from solution routes almost be commercialized [3][4][5][6][7]. However, the conventional TFA-MOD process using full metal-TFA salts in the precursor solution (All-TFA solution) generates a large amount of HF gas during the pyrolysis step.…”