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Y_2Fe_(17-x)Mn_x的结构和磁性

尹晓英 , 王寅岗 , 唐宁 , 杨伏明

金属学报

X射线衍射证实Y2Fe17-xMnx(x≤6.0)的结构与Y2Fe17相同.Y2Fe17-xMnx化合物的晶格常数、居里温度、饱和磁化强度的研究结果表明:晶格常数并非随Mn含量的增加而连续增大,而是在x=2.0处出现一最小值.居里温度由x=0的328K上升到x=0.3的342K,以后随Mn含量增加而...

关键词: Y_2Fe_(17-x)Mn_x , X-ray diffraction , Curie temperature , magnetization

ZnFe_2O_4纳米晶的性能

杨桦 , 宋利珠 , 裘晓辉 , 王子忱 , 赵慕愚

材料研究学报

用PEG凝胶法合成出不同平均粒径的ZnFe2O4纳米晶,用TEM和XRD分析其结构、粒径和形貌用磁天平仪和红外光谱仪(IR)等手段研究其性能.结果表明ZnFe2O4纳米晶在室温下有磁性,表面不饱和离子配位数降低

关键词: ZnFe_2O_4 , nanocrystalline , IR , magnetization

<110>取向Tb0.36Dy0.64(Fe0.85Co0.15)2合金的磁机械阻尼特性

张昌盛马天宇严密裴永茂高旭

金属学报

采用区熔定向凝固方法, 以480 mm/h速度制备了<110>取向Tb0.36Dy0.64(Fe0.85Co0.15)2合金棒. 通过测试在0---0.325 T磁场范围内合金 ...

关键词: Tb--Dy--Fe合金 , magnetostriction , magnetomechanical damping , magnetization

MICROSTRUCTURE AND PROPERTIES OF YBaCuO SUPERCONDUCTOR PREPARED BY MTG METHOD

TANG Hong , XIANYU Ze , HU Qianli , QIAO Guiwen , WANG Yongzhong , ZHUANG Yuzhi1 1) Institute of Metal Research , Chinese Academy of Sciences , Shenyang , China 2) Northeastern University , Shenyang , China Manuscript Received 7 March 1995

金属学报(英文版)

In this study, high-Tc YBaCuO superconductors with high Jc value were prepared using MTG(melting-textured growth) method. These superconductors with high density have Jc value in excess of 1.6×104 A/cm2 (77K, zero field) determined by using a d.c. standard four terminal method with the criterion of ...

关键词: : YBaCuO high-Tc superconductor , null , null , null