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Nanocomposites — the Multifunctional Family of Materials

Published online by Cambridge University Press:  21 February 2011

Rustum Roy
Rustum Roy*
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
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Abstract

This paper starts by discussing the concept of multifunctional materials. Multifunctionality can be achieved in a single phase in a composite or a mixture. While a few exceptional single phase materials such as diamond, Al2O3, CaSrZr4P6O24 exhibit peak values of more than one function, it will be argued that the “invention” of the nanocomposite class of materials made by solution sol-gel processing has opened up the potential for designing several multifunctional materials.

Examples will be drawn from our recent results—both successes and failures—in trying to design and synthesize nanocomposites of two or more ceramic phases for various chemical, thermal, and electrical functions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 175: Symposium S – Multifunctional Materials , 1989 , 15
Copyright
Copyright © Materials Research Society 1990

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References

[1] Roy, R., Agrawal, D.K. and McKinstry, H.A., Very Low Thermal Expansion Coefficient Materials, Ann. Rev. Mater. Sci. 19, 39 (1989).Google Scholar
[2] Roy, R., Yang, L.J., Alamo, J. and Vance, E.R., A Single Phase ([NZP]) Ceramic Radioactive Waste Form, Scientific Basis for Nuclera Waste Management, Vol.6, p. 77, Brookins, Douglas G. (Ed.), Elsevier Science Publ. Co., Inc., New York (1983).Google Scholar
[3] Roy, R., Synthesizing New Materials to Specification, Solid State Ionics 32/33, 3 (1989).Google Scholar
[4] Koehler, J.S., Attempt to Design a Strong Solid, Phys. Rev. 3 (2), 15 July 1980.Google Scholar
[5] Lehoczky, S.L., Retardation of Dilocation Generation and Motion in Thin-layered Metal Laminates, Phys. Rev. Lett. 41, 1814 (1978).Google Scholar
[6] Roy, R.A., Messier, R.F. and Cowley, J.M., Thin Solid Films 79, 207 (1971).Google Scholar
[7] Roy, R., Ceramics by the Solution-Sol-Gel Route, Science 238, 1664 (1987).Google Scholar
[8] Roy, R., Komameni, S. and Yarbrough, W., Some New Advances with SSG-Derived Nanocomposites, Chapter 42, Ultrastructure Processing of Advanced Ceramics, John, MacKenzie and Don, Ulrich (Eds.), Wiley Interscience, 571 (1988).Google Scholar
[9] Suwa, Y., Roy, R. and Komarneni, S., Lowering Crystallization Temperatures by Seeding in Structurally Diphasic Al2O3-MgO Xerogels, J. Am. Ceram. Soc. 68 [9], C–238 (1985).Google Scholar
[10] Yarbrough, W.A. and Roy, R., Extraodrinary Effects of Mortar-and-Pestle Grinding on Microstructure of Sintered Alumina Gel, Nature 322 (6077( 347 (24 July 1987): Microstructural Evolution in Sintering of ALOOH Gels, J. Mater. Res. 2 (4), 494 (July/Aug. 1987).Google Scholar
[11] Komameni, S. and Roy, R., Xerogels, Diphasic, A New Class of Materials Phases in the Al2O3-SiO2- System–A Reply, J. Am. Ceram. Soc. 68, C–85 (1985).Google Scholar
[12] Vilmin, G., Komameni, S. and Roy, R., Crystallization of ThSiO4 from Structurally and/or Compositionally Diphasic Gels, J. Mater. Res. 2 (4), 489 (1987).Google Scholar
[13] Shimada, M., Preparation and Fluorescence Properties of Clay-Dye Composites, Proceedings, Seventh Seminar on Frontier Technology, Oiso, Japan (Feb. 7–10, 1989).Google Scholar
[14] Kazakos-Kijowski, A., Komarueni, S. and Roy, R., Multi-phasic Nanocomposite Sol-Gel Processing of Cordierite, in Better Ceramics Through Chemistry III, Brinker, C.J., Clark, D.E. and Ulrich, D.R. (Eds.), 245 (1988).Google Scholar
[15] Roy, R., Komameni, S. and Selvaraj, U., Solid State Epitaxy, Symposium S, Mat. Res. Soc. (1989).Google Scholar
[16] Komarneni, S. and Roy, Rustum, patent applied for.Google Scholar
[17] Keith, M.L. and Roy, R., Structural Relations Among Double Oxides of Trivalent Elements, Am. Mineralogy 39, 1 (1954).Google Scholar
[18] Agrawal, D.K. and Roy, R., Composite Route to ‘Zero’ Expansion Ceramics, J. Mats. Sci. 20, 4617 (1985).Google Scholar