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| Microstructure and high-frequency magnetic properties of nanocrystalline (Fe1-xCox)78.4Nb2.6Si9B9Cu1 soft magnetic alloys |
| MA Xiaohua; WANG Zhi;WANG Guangjian |
| School of Science; Tianjin University; Tianjin 300072 |
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Cite this article:
MA Xiaohua; WANG Zhi; WANG Guangjian. Microstructure and high-frequency magnetic properties of nanocrystalline (Fe1-xCox)78.4Nb2.6Si9B9Cu1 soft magnetic alloys. Acta Metall Sin, 2007, 43(3): 281-285 .
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Abstract Microstructure and high-frequency magnetic properties were investigated for soft magnetic nanocrystalline (Fe1-xCox78.4)Nb2.6Si9B9Cu1 (x=0.35, 0.5, 0.65) alloys annealed at 490℃for 0.5 hour under vacuum atmosphere (1×10-3Pa). XRD analyzing showed that the α-FeCo(Si) crystallites of about 15 nm were from the amorphous matrix by annealing the samples. With the increasing of Co content, the lattice parameter of α-FeCo(Si) crystallites decreased and the average grain size increased appreciably. Pseudo-Voigt2 function was used to fit the XRD patterns in order to estimate the crystalline volume fraction. The mean composition of the residual amorphous matrix was estimated according to lattice parameter and crystalline volume fraction. Permeability-frequency spectra from 10 kHz to 10 MHz was studied by using an impedance analyzer for nanocrystalline (Fe1-xCox78.4)Nb2.6Si9B9Cu1 alloys. It was shown that with the increasing of Co content, the initial permeability decreased and resonance frequency remarkably increased. The equation of domain wall motion and domain wall pinning mechanism were used to analyze how the high-frequency magnetic property was determined by the Co content for nanocrystalline (Fe1-xCox78.4)Nb2.6Si9B9Cu1 alloys.
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Received: 29 June 2006
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[1]Yoshizawa Y,Oguma S,Yamauchki K.J Appl Phys,1988; 64:6044
[2]Yoshizawa Y,Yamauchi K,Yamane T,Sugihara H.J Appl Phys,1988;64:6047
[3](?)lawska-Waniewska A,Nowicki P,Lachowicz H K,Gorria P,Barandiar(?)n J M,Hernando A.Phys Rev,1994;50 B: 6465
[4]Hernando A,V(?)zquez M,Kulik T,Prados C.Phys Rev, 1995;51B:3581
[5]Zhang X Y,Zhang F X,Zhang J W,Yu W,Zhang M, Zhao J H,Liu R P,Xu Y F,Wang W K.J Appl Phys, 1998;84:1918
[6]Zhong W R,Shao Y Z,Lin G M,Hu X D.Acta Metall Sin,2004;40:795 (钟伟荣,邵元智,林光明,胡西多．金属学报,2004;40:795)
[7]Herzer G.J Magn Magn Mater,2005;294:99
[8]Herzer G.IEEE Trans Magn,1989;25:3327
[9]Suzuki K,Makino A,Inoue A,Masumoto T.J Appl Phys, 1991;70:6232
[10]M(?)ller M,Grahl H,Mattern N,Kuhn U,Schnell B.J Magn Magn Mater,1996;160:284
[11]Fujimori H,Morita H,Obi Y,Ohta S.Amorphous Mag- netismⅡ.New York:Plenum Press,1977:393
[12]Ohnuma M,Ping D H,Abe T,Onodera H,Hono K, Yoshizawa Y.J Appl Phys,2003;93:9186
[13]Yoshizawa Y,Fujii S,Ping D H,Ohnuma M,Hono K. Mater Sci Eng,2004;A375/377:207
[14]G(?)mez-Poto C,Marin P,Pascual L,Hernando A,V(?)zquez M.Phys Rev,2001;65B:024433
[15]Liang X B,Ferenc J,Kulik T,Slawska W A,Xu B S.J Magn Magn Mater,2004;91:284
[16]Allia P,Baricco M,Tiberto P,Vinai F.J Appl Phys,1993; 74:3137
[17]Niculescu V,Budnick J I,Hines W A,Raj K.Phys Rev, 1979;19B:452
[18]Niculescu V,Burch T J,Budick J I.J Magn Magn Mater, 1983;39:223
[19]Liang X B,Kulik T,Ferenc J,Kowalczyk M,Vlas(?)k G, Sun W S,Xu B S.Physics,2005;370B:151
[20]Liao S B.Ferrimagnetism(Vol.Ⅲ).Beijing:Science Press,1988:49 (寥绍彬．铁磁学(Ⅲ)．北京:科学出版社．1988:49)
[21]Qin W,Zhang Y F,Du Y W,Xu F,Wu Y J,Zhao M,Ma F.J Magn Magn Mater,2004;270:174
[22]Mao X Y,Gao W L,Tang J C,Xu F,Du Y W.J Magn Magn Mater,2004;271:286w |
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