| FePd合金超微粒子的制备与性能 |
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| 引用本文： | 陈健,孙秀魁,徐坚,杨明川,魏文铎,胡壮麒.FePd合金超微粒子的制备与性能[J].金属学报,1993,29(9):18-24. |
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| 作者姓名： | 陈健 孙秀魁 徐坚 杨明川 魏文铎 胡壮麒 |
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| 作者单位： | 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
(陈健，孙秀魁，徐坚，杨明川，魏文铎)，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(胡壮麒) |
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| 摘 要： | 研究了用惰性气体凝聚法制备FePd合金超微粒子(UFP),并测定其产物性能结果表明,母合金的成分及组元的活度系数对产物有重要的影响,只有蒸发N_(Fe)=0.5的合金,才能制得均匀的单相合金超微粒子,用XRD,TEM和DSC分析表明Fe_(50)Pd_(50)合金的UFP稳定性比Fe的UFP提高,其矫顽力较相同成分的粗粉提高几倍并可达4.30×10~4A/m以上
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| 关 键 词： | FePd合金 超微粒子 制备 |
| 收稿时间： | 1993-09-18 |
| 修稿时间： | 1993-09-18 |
PREPARATION AND PROPERTIES OF FePd ALLOY ULTRAFINE PARTICLES |
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| CHEN Jian,SUN Xiukui,XU Jian,YANG Mingchuan,WEI Wenduo,HU Zhuangqi Stale Key Laboratory of Rapidly Solidified and Non-Equiliberium Alloys.PREPARATION AND PROPERTIES OF FePd ALLOY ULTRAFINE PARTICLES[J].Acta Metallurgica Sinica,1993,29(9):18-24. |
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| Authors: | CHEN Jian SUN Xiukui XU Jian YANG Mingchuan WEI Wenduo HU Zhuangqi Stale Key Laboratory of Rapidly Solidified and Non-Equiliberium Alloys |
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| Affiliation: | CHEN Jian,SUN Xiukui,XU Jian,YANG Mingchuan,WEI Wenduo,HU Zhuangqi Stale Key Laboratory of Rapidly Solidified and Non-Equiliberium Alloys,Institute of Metal Research,Academia Sinica,Shenyang |
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| Abstract: | The preparation of FePd alloy ultrafine particles (UFP) by inert gas condensa-tion technique was studied. The properties of the products were measured. The results showthat the composition of the master alloy and the activity coefficient of the components havestrong effect on the products. The single phase uniform alloy UFP can only be obtained byevaporating the alloy with the composition of N_Fe = 0.5. The stability of Fe_(50) pd (50) alloy UFPis higher than that of Fe UFP. The coercivity of Fe_(50)pd_(50), is several times higher than that ofcoarse grain powder with the same composition and can reach the value more than 4.30×10_4 A/m. |
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| Keywords: | FePd alloy ultrafine particles oxidation magnetic property evaporation |
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