Preparation of {110} textured Ag ribbons for biaxially aligned superconducting tapes

The aim of our work is to produce biaxially aligned HTS conductors by epita xial growth on textured Ag, This paper will Focus on the preparation of lon g length textured Ag ribbons. After cold rolling and annealing in vacuum at 800 degreesC, different {110} < uvw > directions appear in the recrystallized pure Ag ribbons. The {110}< 112 texture is obtained after cold rolling by adding a 500 degreesC step b efore the annealing at 800 degreesC. If the Ag ingots are annealed at 600 d egreesC in vacuum before the cold rolling, the 800 degreesC annealing leads to a sharp {110}< 011 > texture. The quality of the texture is studied by X-ray and electronic diffraction, Three X-ray pole figures are used to calc ulate the ODF function, a SEM is used to obtain orientation maps from EBDP. The surface roughness is studied by AFM, We have produced Lengths of 25 cm with a sharp {110}< 112 > texture (FWHM=7 degrees, ODF peak). The characte ristics of the two {110}< 112 > and {110}< 011 > orientation are presented in details. It is shown that those (110) ribbons are suitable for epitaxial growth of s uperconducting cuprates, The Ag textured ribbons are used as substrates for different superconducting systems such as T1-1223 and Y123.