Application of textured highly alloyed Ni-W tapes for preparing coated conductor architectures
Application of textured highly alloyed Ni-W tapes for preparing coated conductor architectures
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DOI：
10.1088/0953-2048/23/3/034015
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发表时间：
2010-03-01
影响因子：
3.6
通讯作者：
Holzapfel, B.
中科院分区：
文献类型：
--
作者：
Huehne, R.;Eickemeyer, J.;Holzapfel, B.
在立方织构Ni-5at.%上制备了Y2 O3/YSZ/CeO 2外延缓冲层结构W，Ni-7.5原子% W和Ni-9原子% W带，采用脉冲激光沉积。缓冲层的生长进行了详细的研究，并揭示了良好的纹理转移整个结构上的全球以及在局部尺度上。YBCO（钇钡铜氧化物）层成功地沉积在缓冲带上，显示出约7度的面内织构扩展。微观结构的调查显示，清晰的界面和均匀的表面结构。所有金属衬底的超导转变温度超过89 K，过渡宽度小。在77 K时，在所有衬底上的自电场中感应测得临界电流密度J（c）大于0.9 MA cm（-2）。
An epitaxial Y(2)O(3)/YSZ/CeO(2) buffer architecture has been prepared on cube textured Ni-5 at.% W, Ni-7.5 at.% W and Ni-9 at.% W tapes using pulsed laser deposition. The buffer layer growth was studied in detail and revealed a good texture transfer throughout the structure on the global as well as on the local scale. YBCO (yttrium barium copper oxide) layers were successfully deposited on the buffered tapes, showing an in-plane texture spread of about 7 degrees. Microstructural investigations revealed clear interfaces and a homogeneous surface structure. A superconducting transition temperature of more than 89 K with a small transition width was observed for all metal substrates. A critical current density J(c) of more than 0.9 MA cm(-2) was measured inductively at 77 K in the self-field on all substrates.