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Joining Ceramics Using Microwave Energy

Published online by Cambridge University Press:  15 February 2011

Iftikhar Ahmad  and
Richard Silberglitf
Iftikhar Ahmad
Affiliation:
Technology Assessment & Transfer, Inc., 133 Defense Highway, Suite 212, Annapolis, MD 21401.
Richard Silberglitf
Affiliation:
Technology Assessment & Transfer, Inc., 133 Defense Highway, Suite 212, Annapolis, MD 21401.
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Abstract

In the past several years there has been an explosive growth in the use of microwave energy for the processing of a host of materials. Microwave energy provides rapid internal heating which results in an overall reduction in the processing time. The important features of microwave processing are described, as well as several applications.

Microwave energy has been used by a few groups for the joining of alumina, mullite, silicon nitride and silicon carbide. The work performed by these groups will be reviewed. Typically, a single mode microwave applicator has been used to join ceramics at temperatures ranging between 1250°C - 1800°C. Microwave joining of ceramics was achieved in a matter of minutes, in contrast to hours reported by conventional methods. The strength of the joints was equal to or greater than the as-received materials. Joining of specimens of sintered silicon carbide (Hexoloy ™ ) using interlayers, and direct joining of reaction bonded silicon carbide (RBSC) to itself and Hexoloy™ has been accomplished recently. Both single mode and multimode microwave applicators were used and larger specimens of RBSC having complex shapes were joined using hybrid heating. The paper describes microwave joining apparatus, techniques and results.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 314: Symposium R – Joining and Adhesion of Advanced Inorganic Materials , 1993 , 119
Copyright
Copyright © Materials Research Society 1993

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References

1. Osepchuk, J.M., A History of Microwave Heating Applications, IEEE Transactions on Microwave Theory and Techniques, MTT–32, (9), (1984).Google Scholar
2. Hippel, A.R. Von, Dielectric Materials and Applications, MIT Press and John Wiley & Sons, New York (1954).Google Scholar
3. Decareau, R.V. and Peterson, R.A., Microwave Processing and Engineering, Ellis Horwood Ltd., Chichester, U.K., (1986).Google Scholar
4. Sutton, W.H., Brooks, M.H. and Chabinsky, I.J., Microwave Processing of Materials I, Mater. Res. Soc. Proc. 124, Pittsburgh, PA, (1988).Google Scholar
5. Snyder, W.B., Sutton, W.H., Iskander, M.F. and Johnson, D.L., Microwave Processing of Materials II, Mater. Res. Soc. Proc. 189, Pittsburgh, PA, (1991).Google Scholar
6. Clark, D.E., Gac, F.D. and Sutton, W.H., Microwaves: Theory and Application in Materials Processing, Ceram. Trans. 21, Westerville, OH, (1991).Google Scholar
7. Beatty, R.L., Sutton, W.H. and Iskander, M.F., Microwave Processing of Materials III, Mater. Res. Soc. Proc. 269, Pittsburgh, PA, (1992).Google Scholar
8. Lewis, D.A., Microwave Processing of Polymers - An Overview, p. 21, Ref. 7.Google Scholar
9. Iskander, M.F., Medical and Biological Applications of Electromagnetic Techniques – A relevant Experience to the Microwave Processing of Materials Research, p. 69, Ref. 4.Google Scholar
10. Rohrer, M.D. and Bulard, R.A., Microwave Sterilization of Dental Instruments and Hydrophilic Contact Lenses, Presented at the Microwave Processing of Materials Symposium, Spring Meeting of Materials Research Society, San Francisco, CA (1990).Google Scholar
11. Zygmont, J., Industry warms up to microwave ovens, High Technology, p. 62, March (1987).Google Scholar
12. Walkiewicz, J.W., McGill, S.L. and Moyer, L.A., Improved Grindability of Iron Ores using Microwave Energy, p. 297, Ref. 4.Google Scholar
13. Suzuki, J., Hosaka, M., Kawasaki, Y., Nishino, A. and Sogen, K., A Microwave Burning Processor for Waste Disposal, The Journal of Microwave Power & Electromagnetic Energy, 25, (3), 168 (1990).Google Scholar
14. Shibata, C. and Tamai, H., An improved Microwave Melting Furnace for Radioactive Wastes, The Journal of Microwave Power & Electromagnetic Energy, 25, (2), 81 (1990).Google Scholar
15. Varma, R., Nandi, S.P. and Katz, J.D., Detoxification of Hazardous Waste Streams Using Microwaveassisted Fluid-bed Oxidation, p. 67, Ref. 5.Google Scholar
16. Sutton, W.H., Microwave Processing of Ceramics - An Overview, p. 3, Ref. 7.Google Scholar
17. Dé, A.S., Ahmad, I., Whitney, E.D. and Clark, D.E., Effect of Green Microstructure and Processing Variables on the Microwave Sintering of Alumina, p. 283, Ref. 5.Google Scholar
18. Dé, A.S., Ahmad, I., Whitney, E.D. and Clark, D.E., Microwave (Hybrid) Heating of Alumina at 2.45 Ghz: I. Microstructural Uniformity and Homogeneity, p. 319, Ref. 6.Google Scholar
19. Sutton, W.H., Microwave processing of Ceramic Materials, Ceram. Bull. 68, No. 2, p. 376, (1989).Google Scholar
20. Meek, T.T. and Blake, R.D., Ceramic-glass-ceramic seal by microwave heating, U.S. Patent No. 4,529,857. Ceramic-glass-metal seals by Microwave heating, U.S. Patent No. 4,529,856, (1985).Google Scholar
21. Fukushima, H., Yamanaka, T. and Matsui, M., Microwave Heating of Ceramics and its Application to Joining, p. 267, Ref. 4.Google Scholar
22. Palaith, D. and Silberglitt, R., Microwave Joining of Ceramics, Ceram. Bull. 68, (9), p. 1601, (1989).Google Scholar
23. Al-Assafi, S., Ahmad, I., Fathi, Z. and Clark, D.E., Microwave Joining of Ceramics, p. 515, Ref.6.Google Scholar
24. Yu, X. D., Varadan, V.V. and Varadan, V.K., Application of Microwave Processing to Simultaneous Sintering and Joining of ceramics, p. 497 Ref. 6.Google Scholar
25. Prochazka, S., Sintering of Silicon Carbide, p. 239 in Proc. Conf. Ceramics for High-Performance Applications, Eds. Burke, J.J., Gorum, A.E. and Katz, R.M., Brook Hill, (1975).Google Scholar
26. Iseki, T., Kameda, T. and Maruyama, T., Interfacial Reactions between SiC and Aluminum during Joining, Journal of Materials Science, 19, p. 1692, (1984).Google Scholar
27. Yiin, T-Y, Varadan, V.V. and Varadan, V.K., Microwave Joining of Si-SiC, p. 507, Ref. 6.Google Scholar
28. Silberglitt, R., Palaith, D., Black, W.M., Sa'adaldin, H.S., Katz, J.D. and Blake, R.D., Investigation of Inicrlayer Materials for the Microwave Joining of SiC, p. 487, Ref. 6.Google Scholar
29. Ahmad, I., Silberglitt, R., Black, W.M., Sa'adalddin, H.S. and Katz, J.D., Microwave Joining of Silicon Carbide using Several Different Approaches, p. 271, Ref. 7.Google Scholar
30. Sibold, J., Measurements made by Coors Ceramics Company, Golden, CO (Unpublished, private communication).Google Scholar