Polymeric composites tailored by electric field

被引：89

作者：

Kim G.H. ^{[1
]}

Shkel Y.M. ^{[1
]}

机构：

[1] University of Wisconsin-Madison, Department of Mechanical Engineering, Polymer Engineering Center, Madison, WI 53705

来源：

Journal of Materials Research | 2004年 / 19卷 / 4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1557/JMR.2004.0151

中图分类号：

学科分类号：

摘要：

A solid composite of desirable microstructure can be produced by curing a liquid polymeric suspension in an electric field. Redistribution effect of the field-induced forces exceeds that of centrifugation, which is frequently employed to manufacture functionally graded materials. Moreover, unlike centrifugational sedimentation, the current approach can electrically rearrange the inclusions in targeted areas. The electric field can be employed to produce a composite having uniformly oriented structure or only modify the material in selected regions. Field-aided technology enables polymeric composites to be locally micro-tailored for a given application. Moreover, materials of literally any composition can be manipulated. In this article we present testing results for compositions of graphite and ceramic particles as well as glass fibers in epoxy. Electrical and rheological interactions of inclusions in a liquid epoxy are discussed. Measurements of tensile modulus and ultimate strength of epoxy composites having different microstructure of 10 vol% graphite, ceramic particles and glass fiber are presented.

引用

页码：1164 / 1174

页数：10

共 35 条

[1]

Kaysser W.A., Ilschner B., FGM research activities in Europe, MRS Bull., 20, (1995)

[2]

Rabin B.H., Heaps R.J., Powder processing of Ni-Al<sub>2</sub>O<sub>3</sub> FGM, Proceedings of the Second International Symposium on Functionally Gradient Materials, San Francisco, CA, Nov. 1-4, (1992)

[3]

Rabin B.H., Shiota I., Functionally gradient materials, MRS Bull., 20, (1995)

[4]

Jungling J., Kieback B., Ceramic/metal functionally gradient materials by sedimentation, FGM'94 Symposium, Lausanne, October, (1994)

[5]

Lambros J., Santare M.H., Li H., Sapna III G.H., A novel technique for the fabrication of laboratory scale model functionally graded materials, Exp. Mech., 39, (1999)

[6]

Lee N.J., Jang J., Park M., Choe C.R., Characterization of functionally gradient epoxy/carbon fiber composite prepared under centrifugal force, J. Mater. Sci., 32, (1997)

[7]

Krumova M., Klingshirn C., Haupert F., Friedrich K., Microhardness studies on functionally graded polymer composites, Comp. Sci. Technol., 61, (2001)

[8]

Gast A.P., Zukoski C.F., Electrorheological fluids as colloidal suspensions, Adv. Colloid Interface Sci., 30, (1989)

[9]

Jordan T.C., Shaw M.T., Electrorheology, MRS Bull., 16, (1991)

[10]

Randall C.A., Miller D.V., Adair J.H., Bhalla A.S., Processing of electroceramic-polymer composites using the electrorheological effect, J. Mater. Res., 8, (1993)

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