Effects of Ce-substitution on magnetic properties and microstructure of Nd-Pr-Fe-B melt-spun powders
Effects of Ce-substitution on magnetic properties and microstructure of Nd-Pr-Fe-B melt-spun powders
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DOI：
10.1016/j.jmmm.2015.09.027
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发表时间：
2016-01-15
影响因子：
2.7
通讯作者：
Yan, Aru
中科院分区：
文献类型：
--
作者：
Pei, Kun;Zhang, Xing;Yan, Aru
研究了Ce取代对[(Nd4Pr)(1-x)Ce-x](27)Fe72B (x=0, 0.1, 0.24, 0.5, 0.8 wt%)熔纺粉末磁性能和微观结构的影响。除[(Nd4Pr)(0.76)Ce-0.24](27)Fe72B (x=0.24)样品外，Nd-Pr-Fe-B熔纺粉末的磁性能B-r和(BH)(max)随Ce含量的增加而降低，其中矫顽力较高(H-cj=8.49 KOe)。这可能是由于混合价态、细化的微观结构和较高的晶界相体积分数造成的。随着 Ce 含量的增加，α-Fe 和 Fe2B 相趋于增加。随着Ce含量的增加，居里温度和结晶温度均降低。 (C) 2015 Elsevier B.V. 版权所有
The effects of Ce-substitution on the magnetic properties and microstructure of [(Nd4Pr)(1-x)Ce-x](27)Fe72B (x=0, 0.1, 0.24, 0.5, 0.8 wt%) melt-spun powders have been investigated. The magnetic properties B-r and (BH)(max) of Nd-Pr-Fe-B melt-spun powders decrease with the increase of Ce proportion except the [(Nd4Pr)(0.76)Ce-0.24](27)Fe72B (x=0.24) sample, in which coercivity is relatively high (H-cj=8.49 KOe). It may result from the mixed valence, the fine microstructure and higher volume fraction of grain boundary phase. The alpha-Fe and Fe2B phases tend to increase with higher content of the Ce. Both the Curie temperature and the crystallization temperature decrease with the Ce content increasing. (C) 2015 Elsevier B.V. All rights reserved