Abstract
Three point bending, fracture toughness and static fatigue crack growth tests of alumina specimens with various grain sizes were carried out to investigate the effects of grain size on bending strength, fracture toughness, and static fatigue crack growth rate. The bending strength increased with decreasing grain size. The validated fracture toughness is independent of grain size. On the other hand, the apparent fracture toughness with slow crack growth increased with increasing grain size due to the R-curve behavior. The static fatigue crack growth rate was reduced with increasing grain size.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Barrett, C. R., Nix, W. D. and Tetelman, A. S., The principles of engineering materials. Prentice-Hall Inc., 1973, 80.
Ting, Jyh-Ming, Lin, Y., Ray and Ko, Ying-Hsiang, Effect of powder characteristics on microstructure and strength of sintered alumina. Ceram. Bull., 1991, 70, 1172–1197.
Chantikul, P., Bennison, S. J. and Lawn, B. R., Rolle of grain size in the strength and R-curve properties of alumina. J. Am. Ceram. Soc., 1990, 73, 2419–2427.
Lawn, B. R., Freiman, S. W. and Baker, T. L., Study of microstructural effects in the strength of alumina using controlled flaws. J. Am Ceram. Soc., 1984, 71, C67–C68.
Koji, T., Wakayama, S. and Nishimura, H., Influence of strain rate and grain size on the critical microcracking stress in alumina. Reprint of JSME spring Ann. Mtg., 900–914, 1990, 159–161.
Tajima, Y. and Urasima, K., Improvement of strength, fracture toughness and reliability of engineering ceramics. Yogyo-kyokai-shi, 1990, 25, 96–100.
Mutoh, Y., Tanaka, k. and Miyahara, N., A method for evaluating the fracture toughness of ceramics. Trans. JSME, 1989, 55A, 2144–2151.
Newman, Jr., J. C. and Raju, I. S., An empirical stress-intensity factor equation for the sureface crack. Eng. Fract. Mech., 1981, 15, 185–192.
Sadahiro, T. and Takatsu, S., A new precracking method for fracture toughness testing of cemented carbides. Modern Develop. in Powder Met., 1981, 12, 561–572.
Suresh, S., Ewart. L., Maden, M., Slaughter, W. S. and Nguyen, M., Fracture toughness measurements in ceramics: Precracking in cyclic compression. J. Mat. Sci., 1987, 22, 1271–1276.
Vekinis, G., Ashby, M. F. and Beaumont, P. W. R., R-curve behavior of Al2O3 ceramics. Acta Metall. Mater., 1990, 38, 1151–1162.
Wieninger, H. and Kromp, K., Crack resistance curves of alumina at high temperature. J. Mat. Sci., 1987, 22, 1352–1358.
Steinbrech, R. W., Reichl, A. and Schaarwachter, W., R-curve behavior of long cracks in alumina. J. Am. Ceram. Soc., 1990, 73, 2009–2015.
Swanson, P. L., Fairbanks, C. J., Lawn, B. R., Mai, Y. M. and Hockey, B. J., Crack-interface grain bridging as a fracture resistance mechanism in ceramics: I experimental study on alumina. J. Am. Ceram. Soc., 1987, 70, 279–289.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1992 Elsevier Science Publishers Ltd
About this chapter
Cite this chapter
Miyahara, N., Mutoh, Y., Yamaishi, K., Uematsu, K., Inoue, M. (1992). The Effects of Grain Size on Strength, Fracture Toughness, and Static Fatigue Crack Growth in Alumina. In: Ishizaki, K., Niihara, K., Isotani, M., Ford, R.G. (eds) Grain Boundary Controlled Properties of Fine Ceramics. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1878-1_14
Download citation
DOI: https://doi.org/10.1007/978-94-011-1878-1_14
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-85166-952-3
Online ISBN: 978-94-011-1878-1
eBook Packages: Springer Book Archive