B effects on crystallization and magnetic properties of Pr9.44Fe90.56-xBx (x=7.16, 4.76) nanocomposite magnets

doi:10.11890/1006-7191-105-321

Abstract

Abstract: Magnetic properties, phase evolution and microstructures of Pr_9.44Fe_90.56-xB_x (x=7.16 and 4.76) nanocomposite magnets have been investigated. Both as-spun ribbons exhibit two-step demagnetization curves, indicating the feature of partial crystallization. By using differential scanning calorimeter (DSC) measurements, remained amorphous phase of ribbon with x=7.16 shows a higher crystallization temperature. At optimum annealing temperature of 650 ℃ for 10 min, better magnetic properties, M_r=1.01 T, _jH_c=796 kA/m and (BH)_max=136 kJ/m³ were obtained in the sample with x=4.76. Transmission electron microscopy (TEM) observation confirms that the sample with x=4.76 possesses much finer grain size, which causing a better exchange coupling between soft and hard magnetic grains.

Key words: Nanocomposite magnet, Melt spinning, Exchange coupling, Microstructure

Caiyin YOU, Na TIAN, Zhengxin LU, Liling GE,Xiaotian JING. B effects on crystallization and magnetic properties of Pr_9.44Fe_90.56-xB_x (x=7.16, 4.76) nanocomposite magnets[J]. Acta Metallurgica Sinica (English Letters), 2010, 23(5): 321-326.

References

[1] W. Li, L.L. Li, Y. Nan, Z.Y. Xu, X.Y. Zhang, A.G. Popov, D.V. Gunderov and V.V. Stolyarov, J Appl Phys 104 (2008) 023912. [2] W.C. Feng, R.W. Gao, S.S. Yan, W. Li and M.G. Zhu, J Appl Phys 98 (2005) 044305. [3] C.Y. You, X.K. Sun, W. Liu, B.Z. Cui, X.G. Zhao, D.Y. Geng and Z.D. Zhang, J Phys D: Appl Phys 35 (2002) 943. [4] D.H. Ping, K. Hono, H. Kanekiyo and S. Hirosawa, Acta Mater 47 (1999) 4641. [5] C.Y. You, D.H. Ping and K. Hono, J Magn Magn Mater 299 (2006) 136. [6] S. Hirosawa, Y. Matsuura, H. Yamamoto, S. Fujimura, M. Sagawa and H. Yamauchi, J Appl Phys 59 (1986) 873. [7] A.D. Barra-Barrera, R.K. Murakami and V. Villas-Boas, J Magn Magn Mater 226-230 (2001) 1428. [8] J.I.R. Betancourt and H.A. Davies, J Appl Phys 85 (1999) 5911. [9] E.B. Boltich, E. Oswald, M.Q. Huang and S. Hirosawa, J Appl Phys 57 (1985) 4106. [10] Z.H. Wang, M.C. Zhang, S.Z. Zhou, Y. Qiao and R. Wang, J Alloy Compd 309 (2000) 212. [11] A.H. Li, W. Li, C.H. Chiu, H.W. Chang, W.C. Chang and M. Yue, J Appl Phys 103 (2008) 07E102. [12] Z. Chen, Y. Zhang, Y.Y. Ding, G.C. Hadjipanayis, Q. Chen and B.M. Ma, J Appl Phys 85 (1999) 5908. [13] B.Yang, B.G. Shen, T.Y. Zhao and J.R. Sun, J Magn Magn Mater 320 (2008) 2406. [14] Z.C. Wang and H.A. Davies, Scr Mater 48 (2003) 845. [15] H.W. Chang, W.C. Chang, M.D. Lee, H.H. Hamdeh, X. Zhang and J.C. Ho, J Magn Magn Mater 239 (2002) 461. [16] H.W. Chang, W.C. Wang, J.C. Ho, M. Unver and H.H. Hamdeh, J Appl Phys 93 (2003) 4027. [17] Z.Q. Jin, H. Okumura, J.S. Mu~noz, Y. Zhang, H.L. Wang and G.C. Hadjipanayis, J Phys D: Appl Phys 35 (2002) 2893. [18] H.W. Zhang, C.H. Chiu and W.C. Chang, Appl Phys Lett 82 (2003) 4513. [19] E.F. Kneller and R. Hawig, IEEE Trans Magn 27 (1991) 3588. [20] R. Skomski and J.M.D. Coey, Phys Rev B 48 (1993) 15812. [21] X.K. Sun, J. Zhang, Y.L. Chu, B.Z. Cui and Z.D. Zhang, Appl Phys Lett 74 (1999) 1740.

B effects on crystallization and magnetic properties of Pr_9.44Fe_90.56-xB_x (x=7.16, 4.76) nanocomposite magnets

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