Improvement of magnetic properties for long YGdBCO coated conductors using TFA-MOD process
Improvement of magnetic properties for long YGdBCO coated conductors using TFA-MOD process
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使用 TFA-MOD 工艺改善长 YGdBCO 涂层导体的磁性能
DOI：
10.1016/j.phpro.2012.03.446
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Y. Shiohara
中科院分区：
文献类型：
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作者：
K. Kimura;R. Hironaga;T. Koizumi;T. Nakamura;T. Nakanishi;N. Aoki;T. Hasegawa;Yasuo Takahashi;M. Yoshizumi;T. Izumi;Y. Shiohara
采用三氟乙酸盐-金属有机物沉积（TFA-MOD）法，采用批量热处理工艺制备了含人工钉扎中心（APC）的YxGd（1-x）Ba 2Cu 3 Oy（YGdBCO）涂层导体（CC），并成功地将其应用于工业化制备了具有高临界电流（Ic）的长超导带材。从应用的观点来看，在磁场中的特性变得更加重要，并且Miura等人[1，2]已经展示了一种解决方案，即引入APC如BaZrO 3（BZO）。我们将他们的技术应用到我们的CC制造过程中。热处理条件，特别是总气体压力，氧气浓度和结晶温度，进行了优化的间歇热处理过程。制备了一个40 m长的YGdBCO CC，其中引入了APC，它具有320 A/cm宽的自场Ic值（临界电流密度（Jc）值为2.2 MA/cm 2）和20 A/cm宽在3 T的Liq。氮气
YxGd(1-x)Ba2Cu3Oy(YGdBCO) coated conductors (CCs) containing artificial pinning centers (APCs) were fabricated by the trifluoroacetate-metalorganic deposition (TFA-MOD) method using a batch heat-treatment process, which have been industrially applied to fabricate long superconducting tapes which have high critical current (Ic) have been successfully manufactured. From the viewpoint of applications, the characteristics in magnetic fields become further important and one solution has been showed by Miura et al. [1,2] as introduction of APCs such as BaZrO3 (BZO). We applied their technique to our CCs fabrication process. The heat-treatment conditions, specifically total gas pressure, oxygen concentration and crystallization temperature, were optimized for the batch heat-treatment process. A 40 m-long YGdBCO CC in which APCs are introduced was fabricated, and it has Ic value of 320 A/cm-width (critical current density (Jc) value of 2.2 MA/cm2) in self-field and 20 A/cm-width at 3 T in Liq. N2.