Skip to main content Accessibility help
×
Home

High-resolution Electron Microscopy Observation of Grain-boundary Films in Superplastically Deformed Silicon Nitride

  • Guo-Dong Zhan (a1), Mamoru Mitomo (a1), Yuichi Ikuhara (a2) and Taketo Sakuma (a2)

Abstract

The thickness distribution of grain-boundary films during the superplastic deformation of fine-grained β–silicon nitride was investigated by high-resolution electron microscopy. In particular, grain-boundary thickness was considered with respect to the stress axis in two orientations; namely, parallel and perpendicular to the direction of applied stress. The results showed that the thickness distribution in boundaries perpendicular to the direction of applied stress was unimodal, whereas in parallel boundaries it was bimodal. Moreover, it was found that the majority of film-free boundaries were parallel to the direction of applied stress in the extremely deformed sample. The variation in spacing reflects distribution of stresses within the material due to irregular shape of the grains and the existence of percolating load-bearing paths through the microstructure.

Copyright

Corresponding author

a)Address all correspondence to this author. e-mail: gdzhan@nirim.go.jp

References

Hide All
1.Wakai, F., Komada, Y., Sakaguchi, S., Murayama, N., and Niihara, K., Nature (London), 344, 421 (1990).
2.Rouxel, T., Wakai, F., and Izaki, K., J. Am. Ceram. Soc. 75, 2363 (1992).
3.Chen, I-W. and Xue, L.A., J. Am. Ceram. Soc. 73, 2585 (1990).
4.Chen, I-W. and Hwang, S-L., J. Am. Ceram. Soc. 75, 1073 (1992).
5.Wu, X. and Chen, I-W., J. Am. Ceram. Soc. 75, 2733 (1992).
6.Hwang, S-L. and Chen, I-W., J. Am. Ceram. Soc. 77, 2775 (1994).
7.Rosenflanz, A. and Chen, I-W., J. Am. Ceram. Soc. 80, 1341 (1997).
8.Burger, P., Duclos, R., and Crampon, J., J. Am. Ceram. Soc. 80, 879 (1997).
9.Schneider, J.A. and Mukherjee, A.K., in Ceramic Engineering & Science Proceedings, edited by Greenhut, V. (American Ceramic Society, OH, 1996), Vol. 17, pp. 341353.
10.Rossignol, F., Rouxel, T., Besson, J.L., Goursat, P., and Lespade, P., J. Phys. III 5, 127 (1995).
11.Rouxel, T., Rossignol, F., Besson, J.L., and Goursat, P., J. Mater. Res. 12, 480 (1997).
12.Mitomo, M., Hirotsuru, H., Suematsu, H., and Nishimura, T., J. Am. Ceram. Soc. 78, 211 (1995).
13.Nishimura, T., Bando, Y., Mitomo, M., and Hirotsuru, H., in Fourth Euro Ceramics, Vol. 4, edited by Bellosi, A. (Gruppo Editoriale Fuenza Editrice S.p.A., Riccione, Italy, 1993), pp. 265270.
14.Wang, C-M., Mitomo, M., Nishimura, T., and Bando, Y., J. Am. Ceram. Soc. 80, 1213 (1997).
15.Kondo, N., Wakai, F., Nishioka, T., and Yamakawa, A., J. Mater. Sci. Lett. 14, 1369 (1995).
16.Nishimura, T., Zhan, G-D., Mitomo, M., and Sato, H., in Materials Science Forum (Trans Tech Publications, Switzerland, 1999), Vols. 304–306, pp. 477482.
17.Schneider, J.A. and Mukherjee, A.K., J. Am. Ceram. Soc. 82, 761 (1999).
18.Zhan, G-D., Mitomo, M., Nishimura, T., Xie, R-J., Sakuma, T., and Ikuhara, Y., J. Am. Ceram. Soc. 83, 841 (2000).
19.Zhan, G-D., Mitomo, M., Xie, R-J., and Kurashima, K., Acta Mater. 48, 2373 (2000).
20.Clarke, D.R. and Thomas, G., J. Am. Ceram. Soc. 60, 491 (1977).
21.Kleebe, H-J., Hoffman, M.J., and Rühle, M., Z. Metallkd. 83, 610 (1992).
22.Clarke, D.R., J. Am. Ceram. Soc. 70, 15 (1987).
23.Clarke, D.R., Shaw, T.M., Philipse, A.P., and Horn, R.G., J. Am. Ceram. Soc. 76, 1201 (1993).
24.Tanaka, I., Kleebe, H-J., Cinibulk, M.K., Bruley, J., Clarke, D.R., and Rühle, M., J. Am. Ceram. Soc. 77, 911 (1994).
25.Wang, C.M., Pan, X., Hoffman, M.J., Cannon, R.M., and Rühle, M., J. Am. Ceram. Soc. 79, 788 (1996).
26.Wang, J-G. and Raj, R., J. Am. Ceram. Soc. 67, 399 (1984).
27.Lange, F.F., Clarke, D.R., and Davis, B.I., J. Mater. Sci. 15, 611 (1980).
28.Wilkinson, D.S., J. Am. Ceram. Soc. 81, 275 (1998).
29.Jin, Q., Ning, X-G., Wilkinson, D.S., and Weatherly, G.C., J. Am. Ceram. Soc. 80, 685 (1997).
30.Jin, Q., Wilkinson, D.S., and Weatherly, G.C., J. Am. Ceram. Soc. 82, 1492 (1999).
31.Cinibulk, M.K., Kleebe, H-J., and Rühle, M., J. Am. Ceram. Soc. 76, 426 (1993).
32.Kleebe, H-J., Cinibulk, M.K., Cannon, R.M., and Rühle, M., J. Am. Ceram. Soc. 76, 1969 (1993).

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed