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金属学报  1997, Vol. 33 Issue (8): 880-884    
  论文 本期目录 | 过刊浏览 |
Co_(66)Fe_4Mo_2Si_(16)非晶合金的磁性与晶化
贺淑莉;何开元;王治;程力智;傅玉君;孙伟;李义尧;赵志江
东北大学;沈阳;110006;东北大学;沈阳;110006;东北大学;沈阳;110006;东北大学;沈阳;110006;东北大学;沈阳;110006;辽宁省理化检测分析研究中心沈阳;110015;辽宁省理化检测分析研究中心沈阳;110015;辽宁省理化检测分析研究中心沈阳;110015
CRYSTALLIZATION AND MAGNETIC PROPERTIES FOR Co_(66)Fe_4Mo_2Si_(16) AMORPHOUS ALLOY
HE Shuli; HE Kaiyuan; WANG Zhi; CHENG Llzhi; FU Yujun (Depertment of Mate-rials Science and Engineering; Norlheastern University; Shenyang 110006); SUN Wei; LI Yiyao; ZHAO Zhijiang (Analysizing and Testing Center; Liaoning Provlhce Shenyang 110015) (Manuscript received 1996-08-02; in revised form 1997-04-20)
引用本文:

贺淑莉;何开元;王治;程力智;傅玉君;孙伟;李义尧;赵志江. Co_(66)Fe_4Mo_2Si_(16)非晶合金的磁性与晶化[J]. 金属学报, 1997, 33(8): 880-884.
, , , , , , , . CRYSTALLIZATION AND MAGNETIC PROPERTIES FOR Co_(66)Fe_4Mo_2Si_(16) AMORPHOUS ALLOY[J]. Acta Metall Sin, 1997, 33(8): 880-884.

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摘要: Co_(66)Fe_4Mo_2Si_(16)非晶合金在等温退火和等时退火过程中起始磁导率μi随退火时间的延长而增大,在t=45min时达到最大值,然后随着退火时间的延长从快速下降,电子衍射图表明合金此时仍保持非晶结构;合金的饱和磁致伸缩系数λs随退火时间的延长由负值逐渐变为正值,当t=45min时,λs≈0,合金在等温退火过程中起始磁导率的峰值主要来源于零磁致伸缩系数.当等时退火温度为480℃时,合金中开始有少量α-Fe固溶体析出,其磁性能变差.随着退火温度的升高桥出相的体积分数增加,其磁性能急剧下降.
关键词 Co_(66)Fe_4Mo_2Si_(16)非晶合金磁导率磁致伸缩    
Abstract:Amorphous ribbons with the composition of Co66Fe4Mo2Sil6 have been isothermally annealed and isochronally annealed. During the isothermal annealing at 460 ℃, the initial permeability μi of the sample annealed for 45 min exhibited a maximum of 11.3 × 104 and the electron diffraction pattern revealed that the sample was still in the amorphous state. But it was observed that the magnetostriction λs varied from negative to positive value and ran through zero at about 45 min. So, it can be understood that the maximum of μi re-sulted from zero λs. In the process of isochronal annealing, a little α-Fe solid solution began to be produced in the sample annealed at 48O ℃. It was clear that the formation of a little amount of α-Fe phase resulted in a dramatic decrease in the magnetic properties.
Key wordsCo_(66)Fe_4Mo_2Si_(16) amorphous alloy    permeability    magnetostriction
收稿日期: 1997-08-18     
基金资助:国家自然科学基金!588002;;中国科学院物理研究所磁学国家重点实验室;;中国科学院金属研究所快速凝固非平衡合金国家重点实验室资助项目
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