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A determination of structural evolution during the processing of glycol-based, sol-gel derived ceramics through the study of ferrimagnetic interactions

Published online by Cambridge University Press:  31 January 2011

Edward J. Donahue ,
Michael Ng  and
Patrick Li
Edward J. Donahue*
Affiliation:
Long Island University, Chemistry Department, Brooklyn, New York 11201
Michael Ng
Affiliation:
Long Island University, Chemistry Department, Brooklyn, New York 11201
Patrick Li
Affiliation:
Polytechnic University, Department of Chemical & Biological Sciences, Brooklyn, New York 11201
*
a)Address all correspondence to this author. e-mail: edonahue@liu.edu
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Abstract

This work studies the chemical and structural changes that occur in sols upon heating to form ceramics. Ferrimagnetic Y3Fe5O12 (YIG) was chosen because the geometric and structural constraint of ferrimagnetic interactions allow for a direct measurement of the degree of well-defined structure present within the sol at various stages of development. Glycolate sols of 8% mol total metal were prepared using Y(NO3)3 and Fe(NO3)3 hydrates in stoichiometric ratios. Terminal straight-chain diols were used, ranging from 1,2-ethanediol to 1,6-hexanediol. The temperatures at which mass change occurred during heating were determined by thermogravimetric analysis. Samples were heated to these temperatures and examined by Fourier transform infrared spectroscopy (FTIR), x-ray diffraction, and magnetometry to determine chemical, structural, and magnetic changes. Ferrimagnetic ordering was present after the first heating step. Defined structure, determined by x-ray, occurred in the penultimate step. Analysis of FTIR spectra, in conjunction with the results of thermogravimetric analysis, revealed a predictable decomposition pathway.

Keywords

Sol-gelFerromagneticMagnetic properties
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 11 , November 2007 , pp. 3152 - 3157
Copyright
Copyright © Materials Research Society 2007

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References

REFERENCES

1Brockman, F.G.: Development of ferrites and other ferromagnetic oxide ceramics. Am. Ceram. Soc. Bull. 56(2), 216 1977Google Scholar
2Brinker, J.C.Scherer, G.W.: Sol-Gel Science, The Physics and Chemistry of Sol-Gel Processing Academic Press New York 1990Google Scholar
3Matsumoto, K., Yamaguchi, K., Fuji, T.Ueno, A.: Preparation of bismuth-substituted yttrium iron garnet powders by the citrate gel process. J. Appl. Phys. 69(8, pt. 2B), 5918 1991CrossRefGoogle Scholar
4Tsuchiya, T., Sei, T.Kanda, H.: Sol-gel preparation of YIG (Y3Fe5O12) thin film showing opto-magnetic effect. J. Non-Cryst. Solids 147–148, 463 1992CrossRefGoogle Scholar
5Hay, R.S.: Phase transformations and microstructure evolution in sol-gel derived yttrium-aluminum garnet films. J. Mater. Res. 8(3), 578 1993Google Scholar
6Kim, C.S., Uhm, Y.R., Kim, S.B.Lee, J.: Magnetic properties of Y3−xLaxFe5O12 thin films grown by a sol-gel method. J. Magn. Magn. Mater. 215–216, 551 2000Google Scholar
7Pal, M.Chakvorty, D.: Synthesis of nanocrystalline yttrium iron garnet by sol-gel route. Physica E (Amsterdam) 5(3), 200 2000Google Scholar
8Sanchez, R.D., Ramos, C.A., Rivas, J., Vaqueiro, P.Lopez-Quintela, M.A.: Ferromagnetic resonance and magnetic properties of single-domain particles of Y3Fe5O12 prepared by sol-gel method. Phys. B: Condens. Matter 354(1–4), 104 2004Google Scholar
9Guo, X.Z., Ravi, B.G., Devi, P.S., Hanson, J.C., Margolies, J., Gambino, R.J., Parise, J.B.Sampath, S.: Synthesis of yttrium iron garnet (YIG) by citrate-nitrate gel combination and precursor plasma spray processes. J. Magn. Magn. Mater. 295(2), 145 2005CrossRefGoogle Scholar
10Sanchez, R.D., Rivas, J., Vaqueiro, P., Lopez-Quintela, M.A.Caeiro, D.: Particle size effects on magnetic properties of yttrium iron garnets prepared by a sol-gel method. J. Magn. Magn. Mater. 247(1), 92 2002Google Scholar
11Vaqueiro, P.Lopez-Quintela, M.A.: Influence of complexing agents and pH on yttrium-iron garnet synthesized by the sol-gel method. Chem. Mater. 9(12), 2836 1997Google Scholar
12Niznansky, D., Lancok, A., Hutlova, A., Bursik, J.Rehspringer, J.: Preparation of Y3Fe5O12/SiO2 nanocomposites by sol-gel method; Influence of modifiers. Int. J. Inorg. Mater. 3(6), 479 2001Google Scholar
13Kum, J.S., Kim, S., Shim, I.Kim, C.: Magnetic properties and Mössbauer studies of Y3−xCexFe5O12 (x = 0.00, 0.01, and 0.3) fabricated using a sol-gel method. IEEE Trans. Magn. 39(5, Pt. 2), 3118 2003Google Scholar
14Uhm, Y., Kim, S.Kim, C.: Exchange interactions in Y3Fe5−xCrxO12 fabricated by a sol-gel method. IEEE Trans. Magn. 37(4, Pt. 1), 2428 2001Google Scholar
15Matsumoto, K., Sasaki, S., Haraga, K., Yamaguchi, K., Fuji, T.Asahara, Y.: Theoretical considerations of Faraday rotation spectra of bismuth substituted yttrium iron garnet films. IEEE Trans. Magn. 28(5, Pt. 2), 2985 1992Google Scholar
16Tsuchiya, T., Sei, T.Kanda, H.: Sol-gel preparation of YIG (Y3Fe5O12) thin films showing opto-magnetic effects. J. Non-Cryst. Solids 147–148, 463 1992Google Scholar
17Kum, J., Kim, S., Shim, I.Kim, C.: Magnetic properties of Ce-substituted yttrium iron garnet ferrite powders fabricated using a sol-gel method. J. Magn. Magn. Mater. 272–276(Pt. 3), 2227 2004Google Scholar
18Cho, Y.S., Burdick, V.L.Amarakoon, V.R.W.: Enhanced microwave magnetic properties in nonstoichiometric yttrium iron garnets for high-power applications. IEEE Trans. Magn. 34(4, Pt. 1), 1387 1998Google Scholar
19Rehspringer, J-L., Bursik, J., Niznansky, D.Klarikova, A.: Characterization of bismuth doped yttrium iron garnet layers prepared by sol-gel processing. J. Magn. Magn. Mater. 211, 291 2000CrossRefGoogle Scholar
20Pal, M.Chakravorty, D.: Synthesis of nanocrystalline yttrium iron garnet by sol-gel route. Phys. E: Low-Dimens. Sys Nanostruct. 5(3), 200 1999CrossRefGoogle Scholar
21Marchi, M.C., Bilmes, S.A.Negri, R.M.: Radiative and nonradiative excited state processes for studying the sol to gel evolution. Langmuir 18(18), 6730 2002CrossRefGoogle Scholar
22Li, X., Agarwal, V., Liu, M., William, S. Jr.Investigation of the mechanism of sol-gel formation I the Sr(NO3)2/citric acid/ethylene glycol system by solution state 87Sr nuclear-magnetic-resonance spectroscopy. J. Mater. Res. 15(11), 2393 2000CrossRefGoogle Scholar
23Multani, M.S., Sharma, D.K., Palkar, V.R., Gokarn, S.G., Gurjar, A.Joshi, K.M.: Activation energy for microcrystalline YIG. Mater. Res. Bull. 16(12), 1535 1981Google Scholar
24Kittel, C.: Introduction to Solid State Physics, 6th ed.John Wiley & Sons New York 1986 421Google Scholar
25Boxer, A.S., Ollom, J.F.Rauchmiller, R.F.: Properties of Ferrimagnetic Materials for Microwave Applications,Attachment to technical documentary Report No., ML-TDR-64-224. Bell Telephone New York 1964 65Google Scholar