Supercondcuting properties in MgB2/Fe wires prepared by PIT method

作     者：YAN Guo FENG Yong FU Baoquan LIU Chunfang JI Ping ZHANG Pingxiang ZHOU Lian 

作者机构：School of Materials and MetallurgyNortheastern UniversityShenyang110004China Supercondluscting Materials Research Center Northwest Institute for Nonferrous Metal Reseanch Xi'an 710016 China 

出 版 物：《Chinese Science Bulletin》 (Chin. Sci. Bull.)

年 卷 期：2003年第48卷第13期

页      面：1331-1333页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.50172040) the National High Technology Development Program of China(Grant No.2002-AA306251) 

主　　题：超导体 MgB2/Fe电线 电流密度 微观结构 扫描电子显微镜 

摘      要：The MgB2 formation was analyzed physically and chemically and the MgB2/Fe wires were fabricated by powder in tube (PIT) technology. The microstructure of MgB2 in wires was studied by the scanning electrical microscope (SEM), which shows a good connection of grains and the size of MgB2 grain is 13 mm. The results of Jc measured by the standard four probes method show that Jc value reaches 6.1?04 A/cm2 at 20 K in self field.