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Nanocrystallization of amorphous (Fe1-xCox)88Zr7B4Cu1 alloys and their soft magnetic properties

Published online by Cambridge University Press:  27 July 2011

Diraviam Arvindha Babu ,
Bhaskar Majumdar ,
Rajdeep Sarkar ,
Muthuvel Manivel Raja  and
Dilshad Akhtar
Diraviam Arvindha Babu
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
Bhaskar Majumdar*
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
Rajdeep Sarkar
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
Muthuvel Manivel Raja
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
Dilshad Akhtar
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500058, India
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Amorphous ribbons of (Fe1-xCox)88Zr7B4Cu1 (x = 0.2, 0.35, 0.5, and 0.6) alloys were annealed to produce a nanocrystalline phase dispersed in the amorphous matrix. Precision lattice parameter calculation showed that composition of the nanocrystalline phase is Fe73Co27 for all the alloys irrespective of initial alloy composition. This result was well corroborated with the Mössbauer results. Saturation magnetization of annealed ribbons was almost same for all the alloys, however, coercivity increases with Co content.

Keywords

AmorphousMagnetic propertiesNanostructure
Type
Articles
Information
Journal of Materials Research , Volume 26 , Issue 16 , 28 August 2011 , pp. 2065 - 2071
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

1.Yoshizawa, Y., Oguma, S., and Yamauchi, K.: New Fe based soft magnetic alloys composed of ultrafine grain structure. J. Appl. Phys. 64, 6044 (1998).CrossRefGoogle Scholar
2.Suzuki, K., Makino, A., Kataoka, N., Inoue, A., and Masumoto, T.: High saturation magnetization and soft magnetic properties of bcc Fe-Zr-B and Fe-Zr-B-M (M=transition metal) alloys with nanoscale grain size. Mater. Trans. JIM 32, 93 (1991).CrossRefGoogle Scholar
3.Willard, M.A., Huang, M.Q., Laughlin, D.E., McHenry, M.E., Cross, J.O., Harris, V.G. and Franchetti, C.: Magnetic properties of HITPERM (Fe,Co)88Zr7B4Cu1 magnets. J. Appl. Phys. 85, 4421 (1999).CrossRefGoogle Scholar
4.McHenry, M.E., Willard, M.A., and Laughlin, D.E.: Amorphous and nanocrystalline materials for applications as soft magnets. Prog. Mater. Sci. 44, 291 (1999).CrossRefGoogle Scholar
5.Williard, M.A., Laughlin, D.E., McHenry, M.E., Thomas, D., Sickafus, K., Cross, J.O., and Harris, V.G.: Structure and magnetic properties of (Fe0.5Co0.5)88Zr7B4Cu1 nanocrystalline alloys. J. Appl. Phys. 84, 6773 (1998).CrossRefGoogle Scholar
6.McHenry, M.E. and Laughlin, D.E.: Nano-scale materials development for future magnetic applications. Acta Mater. 48, 223 (2000).CrossRefGoogle Scholar
7.Williard, M.A., Laughlin, D.E., and McHenry, M.E.: Recent advances in the development of (Fe,Co)88M7B4Cu1 magnets. J. Appl. Phys. 87, 7091 (2000).CrossRefGoogle Scholar
8.Muller, M., Grahl, H., Mattern, N., Kühn, U., and Schnell, B.: The influence of Co on the structure and magnetic properties of nanocrystalline FeSiB—CuNb and FeZrBCu-based alloys. J. Magn. Magn. Mater. 160, 284 (1996).CrossRefGoogle Scholar
9.Arvindha Babu, D., Srivastava, A.P., Majumdar, B., Srivastava, D., and Akhtar, D.: Influence of melt-Spinning parameters on the structure and soft magnetic properties of (Fe0.65Co0.35)88Zr7B4Cu1 alloy. Metall. Mater. Trans. A 41A, 1313 (2010).CrossRefGoogle Scholar
10.Liang, X., Kulik, T., Ferenc, J., and Xu, B.: Thermal and magnetic properties of Hf-containing HITPERM alloys. J. Magn. Magn. Mater. 308, 227 (2007).CrossRefGoogle Scholar
11.Kissinger, H.E.: Reaction kinetics in differential thermal analysis. Anal. Chem. 29, 1702 (1957).CrossRefGoogle Scholar
12.Nelson, J.B. and Riley, D.P.: An experimental investigation of extrapolation methods in the derivation of accurate unit-cell dimensions of crystals. Proc. Phys. Soc. 57, 160 (1945).CrossRefGoogle Scholar
13.Majumdar, B., Bysak, S., and Akhtar, D.: Nanocrystallization of soft magnetic Fe(Co)–Zr–B–Cu alloys. J. Magn. Magn. Mater. 309, 300 (2007).CrossRefGoogle Scholar
14.Cullity, B.D. and Graham, C.D.: Introduction to Magnetic Materials (John Wiley & Sons, Hoboken, NJ, 2009).Google Scholar
15.Ponpandian, N., Narayanasamy, A., Chattopadhyay, K., Manivel Raja, M., Ganesan, K., Chinnasamy, C.N., and Jeyadevan, B.: Low-temperature magnetic properties and the crystallization behavior of FINEMET alloy. J. Appl. Phys. 93, 6182 (2003).CrossRefGoogle Scholar
16.Shahri, F. and Beitollahi, A.: Effect of super-heat treatment and quenching wheel speed on the structure and magnetic properties of Fe–Si–Nb–Cu–B–Al–Ge melt spun ribbons. J. Non-Cryst. Solids 354, 1487 (2007).CrossRefGoogle Scholar
17.Arvindha Babu, D., Majumdar, B., Sarkar, R., Akhtar, D., and Chandrasekaran, V.: Effect of processing parameters on the microstructure and soft magnetic properties of Fe88Zr7B4Cu1 alloy ribbons. J. Phys. D: Appl. Phys. 41, 195002 (2008).CrossRefGoogle Scholar
18.Herzer, G.: Grain structure and magnetism of nanocrystalline ferromagnets. IEEE Trans. Magn. 25, 3327 (1989).CrossRefGoogle Scholar