论文标题
最佳热处理以增强通过溶液旋转制备的Y123纳米线的弱链响应
Optimum heat treatment to enhance the weak-linkresponse of Y123 nanowires prepared by SolutionBlow Spinning
论文作者
论文摘要
尽管已经广泛报道了YBA $ _ {2} $ cu $ _ {3} $ o $ _ {7-δ} $（y123）的生产，但仍然缺乏有关理想热处理的信息来以一种维度纳米结构的形式产生此材料。因此，通过溶液打击旋转技术，制备了嵌入聚合物纤维中的金属。这些聚合物复合纤维被解散，然后通过热重分析进行研究。热处理的最高烧结温度是在\ si {850} {\ celsius} - \ si {925} {\ celsius}下一个小时下一个小时的氧气中选择的。 SEM图像使我们能够确定所有样品的电线直径约为350 〜nm，并用烧结温度绘制纠缠的电线形态的演变。 XRD分析表明在所有样品中都存在Y123和二级相。 AC磁化率和DC磁化测量结果表明，在\ si {925} {\ celsius}/1H处烧结的样品是具有最高弱链接临界温度和最大磁性反应的样品。
Although the production of YBa$_{2}$Cu$_{3}$O$_{7-δ}$ (Y123) has been extensively reported, there is still a lack of information on the ideal heat treatment to produce this material in the form of one dimension nanostructures. Thus, by means of the Solution Blow Spinning technique, metals embedded in polymer fibers were prepared. These polymer composite fibers were fired and then investigated by thermogravimetric analysis. The maximum sintering temperatures of heat treatment were chosen in the interval \SI{850}{\celsius}-\SI{925}{\celsius} for one hour under oxygen flux. SEM images allowed us to determine the wire diameter as approximately 350~nm for all samples, as well as to map the evolution of the entangled wire morphology with the sintering temperature. XRD analysis indicated the presence of Y123 and secondary phases in all samples. Ac magnetic susceptibility and dc magnetization measurements demonstrated that the sample sintered at \SI{925}{\celsius}/1h is the one with the highest weak-link critical temperature and the largest diamagnetic response.
