Melt Processing of YBaCuO Oxide Superconductors
Melt Processing of YBaCuO Oxide Superconductors
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DOI：
10.1007/978-4-431-68117-5_61
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
H. Fujimoto;M. Murakami;S. Gotoh;N. Koshizuka;Terutsugu Oyama;Y. Shiohara;S. Tanaka
中科院分区：
文献类型：
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作者：
H. Fujimoto;M. Murakami;S. Gotoh;N. Koshizuka;Terutsugu Oyama;Y. Shiohara;S. Tanaka
我们报告了一种新的熔融工艺YBaCuO超导体，导致高Jc。由于YBaCuO系中超导相是通过包埋反应Y2 BaCuO（211）+ L（液相）→ 2 YBa 2Cu 3 Ox（123）生成的，因此必须使211相在液相中均匀分散，以促进123相的连续生长。为了实现211相的精细分散，我们从部分熔融区冷却后采用粉碎和混合工艺。该工艺能够使Y2 O3和/或211相在液体中精细分散，从而使123相连续生长，从而获得高Jc。
We report a novel melt process for YBaCuO superconductors that leads to high Jc. Since the superconducting phase in YBaCuO system is produced by a peritectic reaction: Y2BaCuO(211) + L(liquid) → 2YBa2Cu3Ox(123), it is essential to finely disperse the 211 phase in liquid to promote the continuous growth of the 123 phase. In order to achieve fine dispersion of 211 phase, we employed pulverizing and mixing process after cooled from partially melted region. The process enables fine dispersion of Y2O3and/or 211 phase in liquid and therefore the continuous growth of the 123 phase, resulting in high Jc.