高温超导永磁体的抗热干扰能力  

THE CAPABILITY OF HTSC PERMANENT MAGNETSAGAINST THERMAL DISTURBUTION

作　　者：丘明[1] 韩朔[1] 林良真[1] 徐励[1] 

机构地区：[1]中国科学院电工研究所

出　　处：《低温物理学报》1997年第2期142-149,共8页Low Temperature Physical Letters

基　　金：国家自然科学基金;国家超导技术联合中心资助

摘　　要：高温超导永磁体的抗热干扰能力丘明，韩朔，林良真，徐励中国科学院电工研究所，北京１０００８０１９９６年４月２５日收到本文测量了在４．２Ｋ～７７Ｋ温区内高温超导永磁体（ＨＴＳ－ＰＭ）受到ｍｊ／ｍｍ２量级能量密度的热扰后表面钉扎场的变化，发现在有效测试区域...ln the paper the decrease of trapped field and the increase of instantaneous magnetic relaxation rae are found in a HTSC permanent magnet at the role of limited thermal disturbution from 4. 2K to 77K. All results showed that its capability against thermal disturbution is affecred by many factors such as its running - condition , working-temperature and the behavior of internal heat transport , etc. Combined with characteristic of vortex dynamics of HTSCs , its intrinisc thermal stability , relations between its stability and running conditions , influences of its anisotropy and static disorder are thoroughly discussed.

关 键 词：高TC 超导永磁体 抗热干扰力 

分 类 号：TM265[一般工业技术—材料科学与工程]