【作者】 王三胜； 韩征和； 史锴； 陈胜； 吴锴； 孙志勇； 刘庆；

【Author】 WANG San- sheng, HAN Zheng- he, SHI Kai, CHEN Sheng, WU Kai,SUN Zhi- yong, LIU Qing( Applied Superconductivity Research Center, Department of Physics, Tsinghua University, Beijing 100084, China; Department of Material Science and Technology, Tsinghua University, Beijing 100084, China)

【机构】 清华大学物理系应用超导研究中心； 清华大学材料科学与工程系；

【摘要】 今天,基于高性能YBCO覆膜导体技术的第二代高温超导导线正在得到越来越多的重视和研究。尤其是近几年来,采用全化学溶胶-凝胶方法在金属基带上制备YBCO覆膜导体的技术,由于具有成本低、可以精确控制金属组元的配比、可以在复杂形状表面均匀成膜等特点,引起了世界范围内广泛的兴趣和研究。本文主要报道采用全化学溶胶-凝胶工艺在RABiTS Ni双轴织构金属基带和我们新近发展的ISM工艺Ni双轴织构金属基带上织构金属氧化物(CeO2、BaxSr1-xTiO3)的制备及其表征。着重讲述RABiTS工艺和ISM工艺的不同原理以及在这两种金属基带上织构氧化物的形成过程和结构差别。最后,讲述我们在多层氧化物缓冲层制备方面的一些尝试以及在此缓冲层上YBCO超导层的制备及结果。更多还原

【Abstract】 Nowadays, the second-generation high temperature superconducting wire based on high quality YBCO coated conductor has attracted more and more attention. In recent years, YBCO coated conductors prepared on metal tape by sol-gel method have got extensive interest and research. Because sol-gel method have the following characteristics: low cost, easy control of cations composition, wide flexibility to coating objects, and so on. Here, we reported that the preparation and characterization of oxide film (CeO2、BaxSr1-xTiO3) on metal tape by all-chemistry sol-gel method. The metal tape are Ni tape processed by the rolling assisted biaxially textured substrate (RABiTS) method or the ion-beam structure modification (ISM) method. We will emphasize the different principle of RABiTS and ISM process, as well as the preparation and structural difference of oxide films deposited on them. Finally, we will give some multi-layer growth trial on ISM Ni tape, as well as the preparation and characterization of YBCO coated conductor on these multi-layers.更多还原