论文标题
成功生产解决方案的吹向YBCO+AG复合陶瓷
Successful production of Solution Blow Spun YBCO+Ag complex ceramics
论文作者
论文摘要
由溶液吹旋（SB）产生的纳米线组成的YBCO织物非常脆，以至于诱导电流产生的洛伦兹力量足以损坏它们。另一方面，众所周知，添加银可以提高陶瓷超导体的机械和通量固定特性。因此，在这项工作中，我们展示了如何成功获得含有Ybco $+$ ag盐的聚合物前体溶液，该溶液可以通过SBS途径旋转以生产陶瓷样品。将YTTRIUM，钡，铜和银金属乙酸和聚乙烯基吡啶酮（PVP）（PVP）（比5：1WT [PVP：乙酸]比率为5：1WT [PVP：乙酸]）溶解在61.5 wt \％的甲醇中，甲醇，12 wt \％的丙酸，26.5 wt \％hymons and andry \％\％\％\％\％\％\％\％\％\％\％解决方案中的PVP。在YBA $ _2 $ _2 $ CU $ _3 $ o $ _ {7-x} $中使用了三种不同量的银（10 wt \％，20 wt \％和30 wt \％）。 TGA表征揭示了结晶和部分熔化温度的降低，大约\ si {30} {\ celsius}。 SEM图像显示，在燃烧聚合物后，产生了由直径至\ si {380} {\ nano \ meter}的纳米线组成的织物。但是，在\ si {925} {\ celsius}的烧结过程之后，对于\ si {1} {\ hour}，纳米线收缩成类似多孔的样品。
YBCO fabrics composed of nanowires, produced by solution blow spinning (SBS) are so brittle that the Lorentz force produced by induced currents can be strong enough to damage them. On the other hand, it is known that silver addition improves the mechanical and flux pinning properties of ceramic superconductors. Thus, in this work, we show how we successfully obtained a polymeric precursor solution containing YBCO$+$Ag salts, which can be spun by the SBS route to produce ceramic samples. Yttrium, barium, copper, and silver metal acetates, and polyvinylpyrrolidone (PVP) (in a ratio of 5:1wt [PVP:acetates]) were dissolved in a solution with 61.5 wt\% of methanol, 12 wt\% of propionic acid, and 26.5 wt\% of ammonium hydroxide, together with 6 wt\% of PVP in solution. Three different amounts of silver (10 wt\%, 20 wt\%, and 30 wt\%) were used in YBa$_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.
