PREPARATION OF FIBROUS BI(PB)-SR-CA-CU-O CRYSTALS AND THEIR SUPERCONDUCTING PROPERTIES IN A BENDING STATE
PREPARATION OF FIBROUS BI(PB)-SR-CA-CU-O CRYSTALS AND THEIR SUPERCONDUCTING PROPERTIES IN A BENDING STATE
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DOI：
10.1143/jjap.28.l1121
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发表时间：
1989-07-01
期刊：
影响因子：
--
通讯作者：
KAWAI, T
中科院分区：
文献类型：
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作者：
MATSUBARA, I;KAGEYAMA, H;KAWAI, T
在氧气气氛中加热玻璃快淬板制备了Bi（Pb）-Sr-Ca-Cu-O（2212相）超导纤维晶体。晶体的Tc（起始）为75 K，Tc（终止）为70 K.该纤维具有单晶性质，并且可以弯曲到0.4mm的曲率半径（R）而不降低Tc值。在非弯曲状态下，最高Jc为67000 A/cm 2（63 K，零磁场）。即使在R> 1 mm的弯曲状态下，它也超过35000 A/cm 2，并且最终在R= 0.4mm时下降到3200 A/cm 2。
The superconducting fibrous crystals of Bi (Pb)-Sr-Ca-Cu-O (2212 phase) have been prepared by heating a glassy melt-quenched plate in an oxygen atmosphere. The crystals show T c (onset) at 75 K and T c (end) at 70 K. The fibers have a single crystal nature and can be bent to a radius of curvature (R) of 0.4 mm without a decrease in the T c value. The highest J c is 67000 A/cm 2 (63 K, zero magnetic field) in a nonbending state. It surpasses 35000 A/cm 2 even in a bending state of R> 1 mm and finally decreases down to 3200 A/cm 2 for R= 0.4 mm.