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Relations Between Coarsening and Densification and Mass Transport Path in Solid-state Sintering of Ceramics: Model Analysis

Published online by Cambridge University Press:  31 January 2011

J. L. Shi
J. L. Shi
Affiliation:
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-Xi Road, Shanghai, 200050, People's Republic of China
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Abstract

The correlations between coarsening (including grain and pore growth) and densification, and the effects of mass transport on particle coarsening and densification were discussed based on the simple particle array models and for the real particle compacts. Grain boundary motion could cause particle coarsening only under a certain particle size distribution but not densification; mass transport is reasoned to contribute to both grain growth (particle coarsening) and shrinkage for one-dimensional particle arrays. Under a certain limitation for the change of the particle size aspect ratio during sintering, very limited effects of grain grown by itself on the shrinkage of particle a rrays throughreinitiating the sintering could be found. For a real powder compact system, mass transport between the particles, which surround a pore, contributes to the particle coarsening and densification when the pore is thermodynamically unstable and only to particle coarsening when the pore is thermodynamically stable. The mass transport mechanism for both particle coarsening and densification would be the same, which cannot exclude, at least on thermodynamics, the contribution from surface diffusion in the intermediate stage of sintering.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 4 , April 1999 , pp. 1378 - 1388
Copyright
Copyright © Materials Research Society 1999

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References

REFERENCES

1.Sintering—Key Papers, edited by Sōmiya, S. and Moriyoshi, Y. (Elsevier Applied Science, London and New York, 1990).CrossRefGoogle Scholar
2.Exner, H. E. and Arzt, E., in Physical Metallurgy, 3rd ed., edited by Cahn, R. W. and Haasan, P. (Elsevier Science Publishers BV, Amsterdam, 1983), Chap. 10, pp. 1885–1912.Google Scholar
3.Lange, F. F. and Kellet, B. J., J. Am. Ceram. Soc. 72 (5), 735–741 (1989).CrossRefGoogle Scholar
4.Kellet, B. J. and Lange, F. F., in Advanced Ceramic Processing and Technology, Vol. 1, edited by Binner, J. G. P. (Noyes Publications, Park Ridge, NJ, 1990), pp. 1–38.Google Scholar
5.Lange, F. F., J. Am. Ceram. Soc. 67, 83 (1984).CrossRefGoogle Scholar
6.Coble, R. L., J. Appl. Phys. 32 (2), 587–592 (1961).Google Scholar
7.Francois, B. and Kingery, W. D., in Sintering and Related Phenomena, edited by Kuczynski, G. C., Hooten, N., and Gilbson, C. (Gordon and Breach Science Publishers, New York, 1967), pp. 499–525.Google Scholar
8.Whittemore, O.J. and Varela, J.A., in Sintering–Key Paper, Sōmiya, S. and Moriyoshi, Y. (Elsevier Applied Science, London, 1987), pp. 777–793.Google Scholar
9.Varela, J. A., Whittemore, O. J., and Longo, E., Ceram. Int. 16, 177–189 (1990).CrossRefGoogle Scholar
10.Harmer, M.P. and Brook, R.J., J. Brit. Ceram. Soc. 80, 147 (1981).Google Scholar
11.Greskovich, C. and Lay, K.W., J. Am. Ceram. Soc. 55 (3), 142–146 (1972).CrossRefGoogle Scholar
12.Brook, R.J., in Treatise on Materials Science and Technology, Vol. 9, Ceramic Fabrication Process, edited by Wang, F. F. Y. (Academic Press, New York, 1976), p. 331.CrossRefGoogle Scholar
13.Shi, J. L. and Lin, Z. X., Powder Technol. 74 (1), 7–12 (1993).CrossRefGoogle Scholar
14.Coblenz, W.S., Dynys, J. M., Cannon, R. M., and Coble, R.L., in Sintering Process, Mater. Sci. Res. Vol. 13, edited by Kuczynski, G. C. (Plenum Press, New York and London, 1980), pp. 141–157.CrossRefGoogle Scholar
15.Shi, J. L., Lu, C. W., Kuo, C. L., and Yen, T. S., Ceram. Int. 18, 155–159 (1992).CrossRefGoogle Scholar
16.Harmer, M.P., in Advances in Ceramics, Vol. 10 (American Ceramic Society, Westerville, OH, 1985), pp. 679–696.Google Scholar
17.Zhao, J. and Harmer, M.P., J. Am. Ceram. Soc. 71 (7), 530–539 (1988).CrossRefGoogle Scholar
18.Gupta, T.K., J. Ceram. Soc. 55 (5), 176 (1972).Google Scholar
19.Exner, H.E. and Arzt, E., in Sintering Key Papers, edited by Sōmiya, S. and Moriyoshi, Y. (Elsevier Applied Science, London, 1987), pp. 157–184.Google Scholar
20.Kellet, B.J. and Lange, F. F., J. Am. Ceram. Soc. 72 (5), 725–734 (1989).CrossRefGoogle Scholar
21.Johnson, D.L., in Sintering—Theory and Practice, Mater. Sci. Monographs, Vol. 14, edited by Kolar, D., Pejovnik, S., and Ristic, M. M. (Elsevier, Amsterdam, 1982), pp. 19–26.Google Scholar
22.Kingery, W.D. and Berg, M., J. Appl. Phys. 26 (10), 1205–1212 (1955).CrossRefGoogle Scholar
23.Kingery, W.D. and Francois, B., in Sintering and Related Phenomena, edited by Kuczynski, G. C., Hooten, N., and Gilbson, C. (Gordon and Breach Science Publishers, New York, 1967), pp. 471–496.Google Scholar
24.Shi, J. L., Gao, J. H., Lin, Z. X., and Yen, T. S., J. Am. Ceram. Soc. 74 (5), 994–997 (1991).CrossRefGoogle Scholar
25.Coble, R.L., J. Appl. Phys. 32 (2), 793–799 (1961).CrossRefGoogle Scholar