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Study of NiFe/SiO2 Nanocomposites

Published online by Cambridge University Press:  15 March 2011

S. Hui ,
Y.D. Zhang ,
T. D. Xiao ,
Mingzhong Wu ,
Shihui Ge ,
W. A. Hines ,
J. I. Budnick ,
M. J. Yacaman  and
H. E. Troiani
S. Hui
Affiliation:
Inframat Corporation, 74 Batterson Park Road, Farmington, CT 06032
Y.D. Zhang
Affiliation:
Inframat Corporation, 74 Batterson Park Road, Farmington, CT 06032
T. D. Xiao
Affiliation:
Inframat Corporation, 74 Batterson Park Road, Farmington, CT 06032
Mingzhong Wu
Affiliation:
Physics Department and IMS, University of Connecticut, Storrs, CT 06269
Shihui Ge
Affiliation:
Physics Department and IMS, University of Connecticut, Storrs, CT 06269
W. A. Hines
Affiliation:
Physics Department and IMS, University of Connecticut, Storrs, CT 06269
J. I. Budnick
Affiliation:
Physics Department and IMS, University of Connecticut, Storrs, CT 06269
M. J. Yacaman
Affiliation:
Department of Chemical Engineering, University of Texas, Austin, TX 78712
H. E. Troiani
Affiliation:
CNM and Texas Materials Institute, University of Texas, Austin, TX 78712
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Abstract

(Ni75Fe25)v/(SiO2)1-v nanocomposites with v =0.5, 0.7, and 1.0, where 75 denotes the atomic percent of Ni in the Ni-Fe alloy phase and v denotes the volume fraction of the magnetic constituent in the composite, were synthesized using a wet chemical approach. The x-ray diffraction and TEM experiments show that the synthetic NiFe/SiO2 is a two-phase composite system in that an amorphous insulating SiO2 layer coats each Ni-Fe particle. The Ni-Fe particle is in a fcc Ni-Fe alloy state. Its size can be controlled over a rather large range between 5 nm to 70 nm by adjusting the reaction parameters. Particular attention was paid to reduce the chemical reaction temperature so as to insure the smallness of the particle size. Meanwhile, measurements of the saturation magnetization indicated that the higher the heat treatment temperature, the more complete the chemical reaction to form the Ni-Fe alloys from precursor materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 703: Symposia U/V – Nanophase and Nanocomposite Materials IV , 2001 , V1.6
Copyright
Copyright © Materials Research Society 2002

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References

REFERENCES

1. Philipse, A.P., Bruggen, P.B. van, and Pathmamanoharan, C., Langmuir 10, 92–99 (1994).Google Scholar
2. Grady, K.O. and Laidler, H., J. Magn. Magn. Mater. 200, 616–633 (1999).Google Scholar
3. Liu, Q., Xu, Z., Finch, J.A., and Egerton, R., Chem. Mater. 10, 3936–940 (1998).Google Scholar
4. Nixon, L., Koval, C.A., Noble, R.D., and Slaff, G.S., Chem. Mater. 4, 117–121 (1992).Google Scholar
5. Hadjipanayis, G.C., WTEC Workshop Rep. R&D Status Trends Nanopart., Nanostruct. Mater., Nanodevices U. S., Proc., Meeting Date 1997 (International Technology Research Institute, Baltimore, Md, 1998), p.107–112.Google Scholar
6. Fukunaga, H., Nippon Oyo Jiki Gakkaishi 19 (4), 791–6 (1995).Google Scholar
7. Hadjipanayis, G.C. and Prinz, G.A., Science and Technology of Nanostructures Magnetic Materials (Plunum Press, New York, 1991).p.477.Google Scholar
8. Hayakawa, Y., Makino, A., Fujimori, H., and Inoue, A., J. Appl. Phys. 81, 3747 (1997).Google Scholar
9. Fujimori, H., Sripta Met. Mat. 33, 1625 (1995).Google Scholar
10.(a) Chow, G.M. and Gonsalves, K.E., Novel Tech. Synth. Process. Adv. Mater., Proc. Symp. (1994), 155–63. Editor(s): Singh, J. and Copley, S.M., Minerals, Metals & Materials Society, Warrendale, Pa.;Google Scholar
(b) Monaci, R., Musinu, A., Piccaluga, G., Pinna, G., Mater. Sci. Forum (1995), 195 (Nanophase Materials), 1–6;Google Scholar
(c) Niznansky, D., Viart, N., and Rehspringer, J.L., J. Sol-Gel Sci. Tech. 8, 615–618 (1997).Google Scholar
11. Shull, R.D. and Bennett, L.H., Nanostruct. Mater. 1, 83–88 (1992).Google Scholar
12.(a) Giri, A.K., Julian, C. de, Gonzalez, J.M., J. Appl. Phys. 76 (10, Pt. 2), 6573–5 (1994);Google Scholar
(b) Pardavi-Horvath, M. and Takacs, L., IEEE Trans. Magn. 28, 3186–3188 (1992).Google Scholar
13.(a) Chang, S., Liu, L., and Asher, S.A., J. Am. Chem. Soc. 116, 6739 (1994); (b) 116, 6745 (1994).Google Scholar