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Tape Casting of BaTiO3

Published online by Cambridge University Press:  22 February 2011

J. B. Blum
Affiliation:
Department of Ceramics Rutgers-The State University of New Jersey P.O. Box 909 Piscataway, NJ 08854
W. R. Cannon
Affiliation:
Department of Ceramics Rutgers-The State University of New Jersey P.O. Box 909 Piscataway, NJ 08854
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Abstract

For the past two years we have been investigating the tape casting of BaTiO3 Specifically we have been interested in developing a useful tape casting formulation and procedure and in studying the effects of powder particle size distribution and dispersion processes on the forming of BaTiO3 tapes.

The formulation we have developed is non-aqueous. An MEKethanol mixture is the solvent and an acrylic binder is used. Two dispersants are being used, a phosphate ester and Menhaden fish oil. Ultrasonic dispersion was found to be effective in breaking up weak powder agglomerates. We have found it important to add the dispersant before adding other organic components to obtain the best dispersion and strongest tapes. The drying method is also important to tape strength. The strongest tapes resulted when the tape was removed from the glass plate soon after casting. We have also demonstrated that for forming purposes a wide particle size distribution is preferred.

Type
Research Article
Copyright
Copyright © Materials Research Society 1985

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References

1. Howatt, G.N., U.S. Patent 2,582,993, (1952). G.N. Howatt, R.G. Breckenridge, and J.M. Brownlow, J Am Ceram Soc, 30, 237–242, (1947).Google Scholar
2. Thompson, J.J., Ceram Bull, 42, 480481, (1963).Google Scholar
3. Wentworth, C. and Taylor, G.W., Ceram Bull, 46, 11861193, (1967).Google Scholar
4. Asher, G.J., Ceramic Age, 87, 2831, (1971).Google Scholar
5. Shanefield, D.J. and Mistler, R.E., Western Elec Eng, 15, 2631, (1971).Google Scholar
6. Shanefield, D.J. and Mistler, R.E., Ceram Bull, 53, 416420, (1974).Google Scholar
7. Williams, J.C., in Ceramic Fabrication Processes [Treatise on Material Science and Technology-Vol 9], ed. by Wang, F.F.Y., (Academic Press, 1976), 173198.Google Scholar
8. Mistler, R.E., Runk, R.B., and Shanefield, D.J., in Ceramic Fabrication Processing Before Firing, ed. by Onoda, G.Y. and Hench, L.L., (Wiley, 1978), 411448.Google Scholar
9. Biggers, J.V., Shrout, T.R., and Schulze, W.A., Ceram Bull, 58, 516518,521, (1979).Google Scholar
10. The Reliability of Multilayer Capacitors, NMAB Report 400, National Research Council, (1983).Google Scholar
11. MacKinnon, R.J. and Blum, J.B., Adv in Ceram, 9, 150157, (1984).Google Scholar
12. MacKinnon, R.J. and Blum, J.B., Adv in Ceram, 9, 158163, (1984).Google Scholar
13. Mikeska, K.R. and Cannon, W.R., Adv in Ceram, 9, 164183, (1984).Google Scholar
14. Mikeska, K.R., Eng, D.S., and Cannon, W.R., unpublished.Google Scholar
15. Cannon, W.R., “Deflocculants for Tape Casting Barium Titanate”, ONR Report # 3., Contract N00014-82-K-0313, (1984).Google Scholar
16. Braun, Linda, Morris, J.R. Jr., and Cannon, W.R., Submitted to J Amer Ceram Soc.Google Scholar
17. Blum, J.B. and MacKinnon, R.J., unpublished.Google Scholar
18. Phelps, G.W. and McLaren, M.G., in Ceramics Processing Before Firing, ed. by Onoda, G.Y. and Hench, L.L., (Wiley, 1978), 211–225.Google Scholar
19. Yan, M.F., Mater Sci Eng, 48, 5372, (1981).CrossRefGoogle Scholar
20. Forti, S., Morris, J.R. Jr., and Cannon, W.R., Submitted to J Amer Ceram Soc.Google Scholar
21. Shanefield, D.J. and Mistler, R.E., Ceram Bull, 55, 213, (1976).Google Scholar