Successful production of Solution Blow Spun YBCO+Ag complex ceramics

Abstract

YBCO fabrics composed of nanowires, produced by solution blow spinning (SBS) are so brittle that the Lorentz force produced by induced currents can be strong enough to damage them. On the other hand, it is known that silver addition improves the mechanical and flux pinning properties of ceramic superconductors. Thus, in this work, we show how we successfully obtained a polymeric precursor solution containing YBCO$+$Ag salts, which can be spun by the SBS route to produce ceramic samples. Yttrium, barium, copper, and silver metal acetates, and polyvinylpyrrolidone (PVP) (in a ratio of 5:1wt [PVP:acetates]) were dissolved in a solution with 61.5 wt\% of methanol, 12 wt\% of propionic acid, and 26.5 wt\% of ammonium hydroxide, together with 6 wt\% of PVP in solution. Three different amounts of silver (10 wt\%, 20 wt\%, and 30 wt\%) were used in YBa${}_2$Cu${}_3$O${}_{7-x}$. The TGA characterizations revealed a lowering of crystallization and partial melting temperatures by about \SI{30}{\celsius}. SEM images show that after burning out the polymer, a fabric composed of nanowires of diameters up to \SI{380}{\nano \metre} is produced. However, after the sintering process at \SI{925}{\celsius} for \SI{1}{\hour}, the nanowires shrink into a porous-like sample.

arXiv comment6 pages, 5 figures, submited to Ceramics International

References in corpus (4)

• YBCO Ceramic Nanofibers obtained by the new technique of Solution Blow Spinning
• High field magneto-transport study of YBa2Cu3O7-Agx (x = 0.0 to 0.20)
• Solution Blow Spinning Control of Morphology and Production Rate of Complex Superconducting YBa2Cu3O7-x Nanowires
• One-pot synthesis: a simple and fast method to obtain ceramic superconducting materials

Cited by in corpus (4)

• Highly Porous Superconductors: Synthesis, Research, and Prospects
• Magnetic doping effects on the superconductivity of Y1-xMxBa2Cu3O7-d (M = Fe, Co, Ni)
• Larger grains in high-Tc superconductors synthesized by the solid-state reaction route
• Bridging Superconductors with UN Development Goals: Perspectives and Applications