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溶胶凝胶法制备MgB2膜

ZHANG Chen, CHEN Li-ping,WANG Yin-bo,WU Tao-li, LIU Wen-jing, LIU Yu-xiao,XUE Chi,FENG Qing-rong

CHINESE JOURNAL OF LOW TEMPERATURE PHYSICS（2011）

Cited 23|Views13
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Abstract
本文介绍了一种新的制备MgB2膜的方法--溶胶凝胶法.以Mg(BH4)2的乙醚溶液(Mg(BH4)2·Et2O)作为前驱体,将其覆涂于Al2O3(001)衬底上,并在Ma气氛保护下高温退火,得到了MaB2的多晶膜.与其它制备MgB2膜的方法相比,这种方法制备的膜具有较高品质,超导转变温度达到37K,临界电流密度Jc(5 K,0 T)～5×106A/cm2,上临界场Hc2(0)～19T.对于MgB2厚膜及线带材的制备,溶胶凝胶法被证明是一种极具潜力的方法.
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Cryogenic Material Properties
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