熔融织构YBCO块样品的磁特性研究  

Study of Magnetic Properties for Melt-Textured Bulk YBCO Samples

作　　者：滕鑫康[1] 徐净人 杜明焕[1] 

机构地区：[1]西北有色金属研究院,宝鸡721014

出　　处：《稀有金属材料与工程》1993年第6期37-42,共6页Rare Metal Materials and Engineering

摘　　要：对MTG区熔生长法,慢冷法,粉末熔融生长法这3种方法制备的熔融织构YBCO块样品进行了交流磁化率和磁阻的测量。根据实验结果计算了样品的钉扎势,并且发现3种方法制备的样品在150 mT外磁场下均显示出基本消除弱连接的特性;粉末融熔生长法所制样品中有较纯净123相和较好织构,质量最好。The bulk samples of superconducting YBa_(0.2)Cu_3O_(7-δ) prepared with three different Melt-Textured Growth (MTG) methods have been investigated by measuring the a. c. susceptibility and resistivity at magnatic field. The flux pinning barrier μ_0s of these samples have been calculated by using the experimental data. It is discovered that the magnetic properties of these samples are different in a number of ways.

关 键 词：熔融织构 磁特性 钉特性 超导合金 

分 类 号：TG132.26[一般工业技术—材料科学与工程]