论文部分内容阅读
日本住友电气工业公司以将高温超导线材应用于磁体为目标,开发出具有11000A/cm~2临界电流密度的铋系超导线材。该公司是用银将铋系氧化物超导体包覆,并加工成厚为0.15mm的带状,同时通过对其组成进行精密的研究、对热处理与加工方法的组合等条件进行控制,以便使非超导相按微米级进行微细分散,结果使其临界电流密度在零磁场下达到47000A/cm~2,同时成功地扩展了即使在1忒斯拉的磁场下也大幅度超过传统的临界值1000/A/cm~2的成果。
Sumitomo Electric Industries, Ltd., Japan, has developed a bismuth-based superconducting wire having a critical current density of 11000 A / cm 2 in order to apply a high-temperature superconducting wire to a magnet. The company is silver bismuth oxide superconductor coated and processed into a strip thickness of 0.15mm, while its composition through sophisticated research, heat treatment and processing methods such as the combination of conditions to control, in order to make non The superconducting phase is finely dispersed at the micron level, resulting in a critical current density of 47000 A / cm ~ 2 at zero magnetic field while successfully extending the traditional threshold value 1000 substantially even under a Tesla magnetic field / A / cm ~ 2 results.