用MgO单晶和Nd123粉体制备单畴SmBCO超导块材的新方法  

A new method of fabricating single-domain SmBCO bulk superconductors by MgO single crastal and Nd123 powders

作　　者：张晓菊[1] 杨万民[1] 王妙[1] 唐艳妮[1] 王高峰[1] 

机构地区：[1]陕西师范大学物理学与信息技术学院,陕西西安710062

出　　处：《西安邮电大学学报》2011年第S2期23-25,28,共4页Journal of Xi’an University of Posts and Telecommunications

摘　　要：为了研究如何充分利用MgO和NdBCO籽晶的优势制备单畴SmBCO超导块材,采用顶部籽晶熔渗生长法(TSMIG),分别研究了MgO单晶、Nd123粉体、以及MgO与Nd123的2-2复合体三种籽晶对SmBCO晶体生长的诱导效果。结果表明,采用MgO与Nd123的2-2复合籽晶能够成功制备出单畴SmBCO超导块材。同时,通过对样品的生长特性和微观结构的研究,阐明了不同籽晶对SmBCO晶体生长形貌的影响机制。To study how to make good use of the advantages of MgO single crystal and NdBCO seeds to fabricate single-domain SmBCO bulk superconductors.The induction effect of MgO single crystal,Nd123 powders,and their 2-2 complex to SmBCO crystal growth has been investigated.The test results show that single-domain SmBCO bulk superconductors can be fabricated by MgO single crystal and Nd123 powders 2-2 complex seed.The growth characteristics and microstructure of the samples have also been studied,we illustrates the mechanism of the effect to the SmBCO crystal growth morphology by different seeds.

关 键 词：SMBCO MgO单晶 Nd123粉体 MgO-Nd123 

分 类 号：TM26[一般工业技术—材料科学与工程]