Strain characteristics of BMO doped REBCO coated conductors fabricated by hot-wall PLD
Strain characteristics of BMO doped REBCO coated conductors fabricated by hot-wall PLD
复制标题
热壁 PLD 制备 BMO 掺杂 REBCO 涂层导体的应变特性
DOI：
10.1088/1742-6596/871/1/012042
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
K. Naoe
中科院分区：
文献类型：
--
作者：
S. Fujita;S. Muto;T. Yoshida;H. Sato;M. Igarashi;K. Kakimoto;Y. Iijima;K. Naoe
REBCO涂层导体（CC）由于其高抗拉强度和在磁场下的高临界电流密度而被期望显示出用于超导应用的高性能。藤仓株式会社（Fujikura）通过离子束辅助沉积（IBAD）和脉冲激光沉积（PLD）方法开发了高性能的REBCO CC。一般认为，普通超导线材的临界电流（Ic）随纵向拉伸应变的变化而变化，但藤仓公司的商用CC的临界电流（Ic）由于REBCO晶体取向的特殊性而几乎不变。最近，我们已经开发了BaMO 3（BMO，M：Zr或Hf）掺杂REBCO CC，以提高其在现场的临界电流密度。在这项研究中，我们研究了BMO掺杂REBCO CC的应变依赖性。结果，确认了通过BMO掺杂，尽管晶体取向没有改变，但Ic随应变的变化增加。
REBCO coated conductors (CCs) are expected to show high performance for superconducting applications due to their high tensile strength and high critical current density under magnetic fields. Fujikura Ltd. (Fujikura) has developed REBCO CCs with high performance by ion beam assisted deposition (IBAD) and pulsed laser deposition (PLD) method. It is generally known that the critical current (Ic) of a common superconducting wire varies with the applied longitudinal tensile strain, but that of Fujikura’s commercial CC hardly varies due to the peculiarities of the REBCO crystal orientation. Recently, we have developed BaMO3 (BMO, M : Zr or Hf) doped REBCO CCs in order to enhance their in-field critical current density. In this study, we investigated the strain dependence of the BMO doped REBCO CCs. As a result, it was confirmed that the Ic change with strain increased by BMO doping, even though the crystal orientation did not change.