| Ti掺杂对α″-Fe16N2相稳定性的影响 |
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| 引用本文： | 王合英,姜恩永,马振伟,何元金.Ti掺杂对α″-Fe16N2相稳定性的影响[J].物理学报,1998,47(11):1912-1916. |
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| 作者姓名： | 王合英 姜恩永 马振伟 何元金 |
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| 作者单位： | (1)清华大学材料科学与工程系,北京 100084; (2)清华大学现代应用物理系,北京 100084; (3)天津大学应用物理系,天津 300072 |
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| 基金项目： | 国家自然科学基金(批准号：59672040）及清华大学理学院基金资助的课题. |
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| 摘 要： | 研究了掺杂Ti对α″-Fe16N2相稳定性的影响，发现适量Ti掺杂有利于α″-Fe16N2相的形成．理论分析表明，掺杂适量Ti元素后含Ti的α″-(Fe,Ti)16N2相的生成焓降低，使α″相的稳定性提高，也使α″相更易制备．Ti浓度为3—15at％的(FeTi)-N薄膜具有高饱和磁化强度，μ0Ms=2.3—2.5T．
关键词：
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| 关 键 词： | 磁性 相稳定性 Fe16N2 钛掺杂 薄膜结构 |
| 收稿时间： | 1997-12-10 |
EFFECTS OF Ti DOPING ON THE PHASE STABILITY OF α″-Fe16N2 |
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| WANG HE-YING,JIANG EN-YONG,ME ZHEN-WEI and HE YUAN-JIN.EFFECTS OF Ti DOPING ON THE PHASE STABILITY OF α″-Fe16N2[J].Acta Physica Sinica,1998,47(11):1912-1916. |
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| Authors: | WANG HE-YING JIANG EN-YONG ME ZHEN-WEI and HE YUAN-JIN |
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| Abstract: | In this paper, the effect of Ti doping on the phase stability of α″-Fe16N2 was investigated. Experimental results show that appropriate Ti addition may benefit the α″-Fe16N2 phase formation. Theoretical calculation shows that the formation enthalpy of α″-(Fe,Ti)16N2 phase in (Fe,Ti)-N films is smaller than that of α″-Fe16N2 phase in Fe-N system. This suggests that the stability of α″-Fe16N2 can be enhanced by Ti addition. Therefore, the α″ alloy phase and exhibit high saturation magnetization μ0Ms=2.3—2.6T． |
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