The Effects of Grain Boundaries on the Current Transport Properties in YBCO-Coated Conductors

机译：晶界对YBCO涂层导体中电流输运性能的影响

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We report a detailed study of the grain orientations and grain boundary (GB) networks in Y2O3 films grown on Ni-5 at.%W substrates. Electron back scatter diffraction (EBSD) exhibited different GB misorientation angle distributions, strongly decided by Y2O3 films with different textures. The subsequent yttria-stabilized zirconia (YSZ) barrier and CeO2 cap layer were deposited on Y2O3 layers by radio frequency sputtering, and YBa2Cu3O7-δ (YBCO) films were deposited by pulsed laser deposition. For explicating the effects of the grain boundaries on the current carry capacity of YBCO films, a percolation model was proposed to calculate the critical current density (Jc) which depended on different GB misorientation angle distributions. The significantly higher Jc for the sample with sharper texture is believed to be attributed to improved GB misorientation angle distributions.

机译：我们报告了在Ni-5 at.W衬底上生长的Y2O3薄膜中晶粒取向和晶界（GB）网络的详细研究。电子背散射衍射（EBSD）表现出不同的GB取向差角分布，这主要由具有不同纹理的Y2O3薄膜决定。随后通过射频溅射在Y2O3层上沉积氧化钇稳定的氧化锆（YSZ）阻挡层和CeO2盖层，并通过脉冲激光沉积法沉积YBa2Cu3O7-δ（YBCO）膜。为了阐明晶界对YBCO薄膜载流能力的影响，提出了一种渗流模型来计算临界电流密度（Jc），其取决于不同的GB取向角分布。据信具有较清晰纹理的样品的Jc明显较高，这归因于改善的GB取向角分布。

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期刊名称 Nanoscale Research Letters
作者
Chao Yang; Yudong Xia; Yan Xue; Fei Zhang; Bowan Tao; Jie Xiong;
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作者单位

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年(卷),期 2015(10),-1
年度 2015
页码 416
总页数 8
原文格式 PDF
正文语种
中图分类生化遗传学;生化药理学;
关键词
YBa2Cu3O7-δ (YBCO) Grain boundary (GB) Current carry capacity Misorientation angles;

机译：YBa2Cu3O7-δ（YBCO）;晶界（GB）;载流能力;取向错误的角度;

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专利

1. The Effects of Grain Boundaries on the Current Transport Properties in YBCO-Coated Conductors [J] . Chao Yang, Yudong Xia, Yan Xue, Nanoscale Research Letters . 2015,第1期

机译：晶界对YBCO涂层导体中电流输运性能的影响
2. Study on Dependence of AC Transport Current Losses in YBCO-Coated Conductors on Distribution of Critical Current Density and n Value [J] . DAISUKE MIYAGI, OSAMI TSUKAMOTO Electrical engineering in Japan . 2005,第2期

机译：YBCO涂层导体中交流输运电流损耗对临界电流密度和n值分布的依赖性研究
3. Intra-and inter-grain currents in coated conductors with arbitrary grain boundary properties from magnetic measurements [J] . Feenstra R., Sinclair J.W., Thompson J.R., Superconductor Science & Technology . 2011,第6期

机译：磁性测量中具有任意晶界特性的涂层导体中的晶粒间和晶粒间电流
4. Transport properties of Low-Angle Grain Boundaries and Granular Coated Conductors [C] . Jan E Evetts Applied Superconductivity 2003 . 2004

机译：低角度晶界和涂层导体的传输特性
5. Study of the local current transport properties of striated coated conductor using variable temperature scanning laser microscopy. [D] . Khanal, Chooda Mani. 2005

机译：使用可变温度扫描激光显微镜研究条纹涂层导体的局部电流传输特性。
6. Remarkable Role of Grain Boundaries in the ThermalTransport Properties of Phosphorene [O] . Xiangjun Liu, Junfeng Gao, Gang Zhang, 2020

机译：晶界在热中的显着作用磷的传输性质
7. The Effects of Grain Boundaries on the Current Transport Properties in YBCO-Coated Conductors [O] . Chao Yang, Yudong Xia, Yan Xue, 2015

机译：晶界对YBCO涂层导体中电流输运性能的影响
8. Dynamic Resistance of YBCO-Coated Conductors in Applied AC Fields with DC Transport Currents and DC Background Fields. [R] . Duckworth, R. C., Zhang, Y. F., Ha, T., 2013

机译：具有直流输运电流和直流背景场的应用交流磁场中YBCO涂层导体的动态电阻。

The Effects of Grain Boundaries on the Current Transport Properties in YBCO-Coated Conductors

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