| 机械球磨中Fe与BN反应形成Fe-N合金的结构表征及其磁性 |
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| 引用本文： | 郭秀芝,刘力,姚斌.机械球磨中Fe与BN反应形成Fe-N合金的结构表征及其磁性[J].吉林大学学报(理学版),2008,46(3):535-538. |
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| 作者姓名： | 郭秀芝 刘力 姚斌 |
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| 作者单位： | 1. 吉林大学 物理学院, 长春 130021; 2. 北华大学 理学院物理系, 吉林 吉林 132011 |
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| 基金项目： | 国家自然科学基金
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高等学校博士学科点专项科研项目 |
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| 摘 要： | 以六方氮化硼（h-BN）为氮源, 利用机械球磨Fe和h-BN的方法制备Fe-N非晶和六方结构ε-FexN 合金, 估算ε-FexN合金中N含量随球磨时间的变化, 并研究两种合金在球磨过程中的形成机制和结构转变规律. 利用Mossbauer谱和振动样品磁强计对Fe-N非晶和ε-FexN合金的磁性进行表征, 得到了ε-FexN合金磁性能随N含量的增加由铁磁转变为顺磁的变化规律, 并阐明了样品的矫顽力随球磨时间变化的规律和机制.
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| 关 键 词： | ε-FexN合金 机械球磨 矫顽力 |
| 文章编号： | 1671-5489(2008)03-0535-04 |
| 收稿时间： | 2007-07-10 |
| 修稿时间： | 2007年7月10日 |
Structural Characterization and Properties of Fe-N Alloy Prepared by Reaction between Fe and BN during Ball Milling |
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| GUO Xiu-zhi,LIU Li,YAO Bin.Structural Characterization and Properties of Fe-N Alloy Prepared by Reaction between Fe and BN during Ball Milling[J].Journal of Jilin University: Sci Ed,2008,46(3):535-538. |
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| Authors: | GUO Xiu-zhi LIU Li YAO Bin |
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| Institution: | 1. College of Physics, Jilin University, Changchun 130021, China; 2. Department of Physics, School of Sciences, Beihua University, Jilin 132011, Jilin Province, China |
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| Abstract: | With hexagonal BN （h-BN） as nitrogen source, an amorphous Fe-N alloy and ε-FexNalloy with hexagonal structure were prepared by mechanical milling of Fe and h-BN. The nitrogen content change was estimated in the ε-FexN alloy with milling time. We investigated the formation mechanisms and the law of structural transformation about the two kinds of alloys. Magnetic properties of the amorphous Fe-N alloy and ε-FexN alloy were described by Mossbauer patterns and magnetometer of vibration samples. The results show that the magnetic property of ε-FexN alloy changed from ferromagnetisium to paramagnetisium with N content increasing. The article elaborates on the law and mechanisms of the change of coercivity with boll milling time. |
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| Keywords: | " target="_blank">xN alloyzz')" href="#"> ε-FexN alloy mechanical milling coercivity |
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