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High-Permeability Particles for Magnetic Composites

Published online by Cambridge University Press:  26 February 2011

Robert Sailer ,
Pamela J Jeppson ,
Eric L Jarabek ,
Joseph A Sandstrom ,
Zoha Al-Badri ,
Dean G Grier ,
Anthony N Caruso ,
Philip R Boudjouk ,
Pete Eames  and
Mark Tondra
...Show all authors
Robert Sailer
Affiliation:
[email protected], North Dakota State University, Center for Nanoscale Science and Engineering, United States
Pamela J Jeppson
Affiliation:
[email protected], North Dakota State University, Center for Nanoscale Science and Engineering, United States
Eric L Jarabek
Affiliation:
[email protected], North Dakota State University, Center for Nanoscale Science and Engineering, United States
Joseph A Sandstrom
Affiliation:
[email protected], North Dakota State University, Center for Nanoscale Science and Engineering, United States
Zoha Al-Badri
Affiliation:
[email protected], North Dakota State University, Center for Nanoscale Science and Engineering, United States
Dean G Grier
Affiliation:
[email protected], North Dakota State University, Center for Nanoscale Science and Engineering, United States
Anthony N Caruso
Affiliation:
[email protected], North Dakota State University, Center for Nanoscale Science and Engineering, United States
Philip R Boudjouk
Affiliation:
[email protected], North Dakota State University, Research, Creative Activities and Tech Transfer, United States
Pete Eames
Affiliation:
[email protected], NVE, United States
Mark Tondra
Affiliation:
[email protected], NVE, United States
Douglas L Schulz
Affiliation:
[email protected], North Dakota State University, Center for Nanoscale Science and Engineering, United States
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Abstract

Electromagnetic shields and flux concentrators for magnetic sensors could utilize flexible and insulating composites applied using simple thin film deposition methods such as dip-coating, spin-coating, spraying, etc. As the first step towards development of composites with superior performance, efforts focused on isolating nanoparticles with large magnetizations under low fields. In this paper, we provide the results of proof-of-concept studies for two systems: metal-functionalized silicone-based materials (metal-silicone); and, Co-ferrite (Co2+1−xFe2+xFe3+2O4) nanoparticles. The metal-silicone materials studied included a polysiloxane that contained a pendant ferrocene where an optimum saturization magnetization of 5.9 emu/g (coercivity = 11 Oe) was observed. Co-ferrite nanoparticle samples prepared in this study showed unprecendented saturation magnetization (i.e., Ms > 150 emu/g) with low coercivity (Hc ∼ 10 Oe) at room temperature and offer potential application as flux concentrators.

Keywords

magnetic propertiesnanoscaleparticulate
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 906: Symposium HH – Magnetic Sensors and Sensing Systems , 2005 , 0906-HH01-06
Copyright
Copyright © Materials Research Society 2006

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References

1 Ph.D. Dissertation, AL-Badri, Zoha M., “Metal Containing Polysiloxanes: Precursors to Novel Magnetic Ceramic Nanocomposites, (2004).Google Scholar
2 Manova, E., Kunev, B., Paneva, D., Mitov, I., Petrov, L., Estournès, C., D'Orleans, C., Rehspringer, J.-L., Kurmoo, M., Chem. Mater. 16, 5689–5609 (2004).Google Scholar
3 Olsson, R.T., Salazar-Alvarez, G., Hedenqvist, M.S., Gedde, U.W., Lindberg, F., Savage, S.J., Chem. Mater. 17, 5109–5118 (2005).Google Scholar
4 Betancourt-Galindo, R., Ayala-Valenzuela, O., Garcia-Cerda, L.A., Fernandez, O. Rodriguez, Matutes-Aquino, J., Ramos, G., Yee-Madeira, H., J. Magn. Magn. Mater. 294, e33–e36 (2005); ibid pp e37-e41.Google Scholar
5 Moumen, N., Pileni, M.P., J. Phys. Chem. 100, 1867–1873 (1996); A.T. Ngo, P. Bonville, M.P. Pileni, Eur. Phys. J. B9, 583-592 (1999).Google Scholar
6 Li, X., Kutal, C., J. Alloys Comp. 349, 264–268 (2003).Google Scholar
7 Pillai, V., Shah, D.O., J. Magn. Magn. Mater. 163, 243–248 (1996).Google Scholar
8 Seip, C.T., Carpenter, E.E., O'Connor, C.J., John, V.T., Li, S., IEEE Trans. Magn. 34, 1111–1113 (1998).Google Scholar
9 Shafi, K.V.P.M., Gedanken, A., Prozorov, R., Balogh, J., Chem. Mater. 10, 3445–3450 (1998).Google Scholar
10 Klug, H. P., Alexander, L. E., X-ray Diffraction Procedures for Polycrystalline and Amorphous Materials; (Wiley, 1962), pp. 491–538 Google Scholar
11 Hoh, J.C., Yaacob, I.I., J. Mater. Res. 17 (2002) 3105–3109.Google Scholar