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Amorphous ceramics as the particulate phase in electrorheological materials systems

Published online by Cambridge University Press:  31 January 2011

Daniel R. Gamota ,
Adam W. Schubring ,
Brian L. Mueller  and
Frank E. Filisko
Daniel R. Gamota
Affiliation:
Motorola, Corporate Manufacturing Research Center, Schaumburg, Illinois 60196
Adam W. Schubring
Affiliation:
Delco Electronics Corp., Hybrid Microelectronics Manufacturing, Kokomo, Indiana 46904
Brian L. Mueller
Affiliation:
Henkel Corporation, Parker & Amchem, Madison Heights, Michigan 48071
Frank E. Filisko
Affiliation:
Department of Materials Science and Engineering, College of Engineering, The University of Michigan, Ann Arbor, Michigan 48109–2136
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Abstract

Several electrorheological (ER) materials systems composed of amorphous ceramic powders dispersed in light paraffin oil were developed to determine if relationships among ER activities, dielectric properties, compositions, porosities, and oxide species could be identified. The results of the studies suggested that trends among ER activity, dielectric phenomena, and alkali metal species existed. The aluminosilicate powders developed with various alkali metals showed that the ER activity increased as the activation energy decreased. The sodium aluminosilicate appeared to have the greatest ER activity and the lowest activation energy, while the cesium aluminosilicate displayed the weakest ER response, but had the highest activation energy. The thermodielectric responses of the different oxide materials systems developed with sodium showed that the mechanisms contributing to the dielectric dispersions had similar activation energies; however, the magnitudes of the recorded ER activities varied, and thus a direct correlation was not apparent. In addition, studies conducted with ER materials composed of sodium aluminosilicate powders of varying porosities showed that ER activities increased with increasing porosity. Furthermore, the analysis of the results of the thermodielectric and rheological studies of the different amorphous materials ER systems suggested that these materials may have an optimal stimulus frequency/temperature for ER activity.

Type
Articles
Information
Journal of Materials Research , Volume 11 , Issue 1 , January 1996 , pp. 144 - 155
Copyright
Copyright © Materials Research Society 1996

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References

REFERENCES

1.Hartsock, D. L., Novak, R. F., and Chaundry, G. J., Rheol, J.. 35 (7), 1305 (1991).Google Scholar
2.Petek, N. K., Goudie, R. J., and Boyle, F. P., SAE Paper #881785 (1992).Google Scholar
3.Ushijima, T., Takano, K., and Noguchi, T., SAE Paper #881787 (1992).Google Scholar
4.Filisko, F. E. and Radzilowski, L. H., J. Rheol. 34 (4), 539–552 (1990).CrossRefGoogle Scholar
5.Filisko, F. E., in Proceedings from the Third International Conference on Electrorheological Materials, Carbondale, IL (1991).Google Scholar
6.Gamota, D. R. and Filisko, F. E., J. Rheol. 34 (4), 539 (1990).Google Scholar
7.Kansal, P. and Laine, R. M., J. Am. Ceram. Soc. 77, 875 (1994).CrossRefGoogle Scholar
8.Gamota, D. R., Mueller, B. L., and Filisko, F. E., patent submission (1994).Google Scholar
9.Anderson, R. A., in Proceedings from the Third International Conference on Electrorheological Materials, Carbondale, IL (1991).Google Scholar
10.Davis, J. M., J. Appl. Phys. 72, 1334 (1992).CrossRefGoogle Scholar
11.Ginder, J. M. and Ceccio, S. L., J. Rheol. 39 (1), 211 (1995).CrossRefGoogle Scholar
12.Gast, A. P. and Zukoski, C. F., Adv. Colloid Interface Sci. 30, 153 (1989).CrossRefGoogle Scholar
13.Matijević, E., Langmuir 2, 12 (1986).CrossRefGoogle Scholar
14.Klein, L. C., in Sol-gel technology for Thin Films, Fibers, Preforms, Electronics, and Specialty Shapes, edited by Klein, L. C. (1986), pp. 382–399.Google Scholar
15.Breck, D. W., Zeolite Molecular Sieves (Robert E. Kreiger Publishing Company, Malabar, FL, 1984), pp. 392–410.Google Scholar
16.Klass, D. L. and Martinek, T. W., J. Appl. Phys. 38, 67 (1967).CrossRefGoogle Scholar
17.Shulman, Z. P., Kordonsky, V. I., Zoltsgendler, E. A., Prohorov, I. V., Khusid, B. M., and Demchuk, S. A., Int. J. Multiphase Flow 12, 935 (1986).CrossRefGoogle Scholar
18.Anderson, O. L. and Stuart, D. A., J. Am. Ceram. Soc. 37 (12), 573 (1954).CrossRefGoogle Scholar
19.Patel, H. K. and Martin, S. W., Solid State Ionics 53, 1148 (1992).CrossRefGoogle Scholar