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材料研究学报  2007, Vol. 21 Issue (5): 449-453    
  论文 本期目录 | 过刊浏览 |
(Bi,Pb)-2223带材超导芯部的熔化分解及其再形成
李敬勇;J.L.Soubeyroux;李成山;郑会玲;L.Porcar;卢亚峰; R.Tournier; 周 廉
引用本文:

李敬勇; J.L.Soubeyroux; 李成山; 郑会玲; L.Porcar; 卢亚峰; R.Tournier; 周廉 . (Bi,Pb)-2223带材超导芯部的熔化分解及其再形成[J]. 材料研究学报, 2007, 21(5): 449-453.

全文: PDF(706 KB)  
摘要: 析了(Bi,Pb)-2223高温超导材料传导性能进一步提高的影响因素,阐述了熔化处理对改善(Bi.Pb)--2223带材芯部微观结构的优越性.结果表明,传统的(Bi,Pb)--2223相非平衡成相机制严重制约了熔化处理工艺的效果,确立了(Bi,Pb)--2223相从液相中可逆再形成的可能性,研究了不同条件下(Bi,Pb)--2223相熔化分-再形成的相演变特征.在适当温度下, (Bi,Pb)--2223相部分熔化分解,生成一种类似于2212化学计量比的液相及碱土铜酸盐2:1--AEC和14:24--AEC,对于其与液相或熔体之间平衡转变关系的建立极为重要.
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收稿日期: 1900-01-01     
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