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OALib Journal期刊
ISSN: 2333-9721
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熔融织构y{1-x}nd{x}ba2cu3o{7-y}的磁通钉扎
Keywords: y{1-x}nd{x}ba2cu3o{7-y}超导体
Abstract:
？制备了y{1-x}nd{x}ba2cu3o{7-y}熔融织构超导样品.x射线衍射分析表明,样品具有较高的织构度,样品中晶粒的取向为(00l)方向.钕均匀地替代了钇,并且对样品的晶体结构影响不大.样品的不可逆温度tp随外场的变化说明,少量钕替代钇可以提高ybco超导材料的磁通钉扎能力.在高温超导体中引入和样品本身结构相近的第二相可能是一种比较有效的增强高温超导材料磁通钉扎能力的方法.
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