材料研究学报  2007, Vol. 21 Issue (3): 319-323

论文 本期目录 | 过刊浏览 |

Nd2Fe14B/α-Fe纳米复合永磁的制备和性能

李保卫　 李永利　 岳明　 张久兴

李保卫; 李永利; 岳明; 张久兴 . Nd2Fe14B/α-Fe纳米复合永磁的制备和性能[J]. 材料研究学报, 2007, 21(3): 319-323.

摘要 参考文献 相关文章 Metrics 全文: PDF(653 KB)   摘要: 用超声化学法制备纳米Fe颗粒包覆的Nd2Fe14B复合粉体,将其在Ar气保护下经放电等离子烧结(SPS),得到Nd2Fe14B/α-Fe纳米晶复合磁体.Fe名义质量分数为5%的烧结磁体具有较高的磁性能:Br=0.86 T,Hci=683.8 kA/m,(BH)max=95.92 kJ/m3.烧结前对复合粉末进行适当的高能球磨,能促进显微组织进一步细化,增强软磁相与硬磁相之间的交换耦合,使相同Fe含量和烧结工艺的磁体Br和(BH)max分别提高到0.94 T和113.6 kJ/m3. Key words： 收稿日期: 1900-01-01      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 李保卫 李永利 岳明 张久兴 44.8K 链接本文: https://www.cjmr.org/CN/Y2007/V21/I3/319 1 E.F.Kneller,R.Hawig,The exchange-spring magnet:A new material principle for permanent magnets,IEEE Trans.Magn.,27,3588(1991) 2 R.Skomski,J.M.D.Coey,Giant energy product in nanos- tructured two phase magnets,Phys.Rev.(B),48, 15812(1993) 3 WU Jianchun,DONG Yinsheng,LIN Pinghua,Current study on the novel rare-earth permanent magnet materi- als,Metallic Functional Materials,11,17(2004) (吴建春,董寅生,林萍华,新型稀土永磁材料的研究现状,金属功能材料,11,17(2004)) 4 NI Jiansen,XU Hui,A study of two-phase nanocrystalline permanent magnet,Journal of Chinese Rare Earth Soci- ety,20,215(2002) (倪建森,徐晖,双相纳米晶永磁体的研究,中国稀土学报,20, 215(2002)) 5 H.Kronmuller,R.Fischer,A.Zerm,et al.,Micromag- netism and microstructure of hard magnetic materials,J. Phys(D):Appl.Phys.,29,2274(1996) 6 R.Skomski,Aligned two-phase magnet:permanent mag- netism of the future,J.Appl.Phys.,76,7059(1994) 7 J.Rauer,M.Seager,A.Zerm,nanocrystalline FeNdB per- manent magnets with enhanced remanence,J.Appl. Phys.,80(3),1667(1996) 8 H.Fukunaga,H.Inoue,Effect of intergrain exchange inter- action on magnetic properties in isotropic NdFeB magnets, J.Appl.Phys.,31,1347(1992) 9 R.Fischer,T.Schreful,H.Kronmuller,et al,Phase distribu- tion and computed magnetic properties of high-remanent composite magnets,J.Magn.Mater.,150,329(1995) 10 R.Fischer,T.Schrefl,Grain sized dependence of remanence and coercive field of isotropic nanocrystalline composite permanent magnets,J.Magn.Mater.,153,3549(1996) 11 X.F.Tang,L.D.Chen,Synthesis and thermoelec- tric properties of P-type barium-filled skutterudite Ba_yFe_xCo_(4-x)Sb_(12),J.Mater.Res.,17(11),2953(2002) 12 ZHANG Jiuxing,LIU Kegao,ZHOU Meiling,Develop- ment and application of spark plasma sintering,Powder Metallurgy Technology,20(3),129(2002) (张久兴,刘科高,周美玲,放电等离子烧结技术的发展与应用,粉末冶金技术,20(3),129(2002)) 13 M.Tokita,Trends in advanced SPS spark plasma sinter- ing system and technology,J.Soc.Powd.Tech.,30, 790(1993) 14 H.Ono,N.Waki,Isotropic bulk exchange-spring mag- nets with 134 kJ/m~3 prepared by spark plasma sintering method,IEEE Trans.Magn.,37,2552(2001) 15 T.Saito,T.Takeuchi,H.Kageyama,Production of bulk amorphous and nanocomposite Nd_4Fe_(77.5)B_(18.5)materials by spark plasma sintering method,IEEE Trans.Magn., 40,2880(2004)` No related articles found! Viewed Full text Abstract Cited   Shared      Discussed