Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-25T18:29:43.605Z Has data issue: false hasContentIssue false
  • English
  • Français

Elastic Deformation in Hardness Test and Young's Modulus of Hipped Si3N4

Published online by Cambridge University Press:  15 February 2011

Toyohiro Hamasaki  and
K. Ishizaki
Toyohiro Hamasaki
Affiliation:
Nagaoka University of Technology, Dept. of Material Science and Engineering, School of Mechanical Engineering, Nagaoka, Niigata 940–21, Japan.
K. Ishizaki
Affiliation:
Nagaoka University of Technology, Dept. of Material Science and Engineering, School of Mechanical Engineering, Nagaoka, Niigata 940–21, Japan.
Get access

Abstract

The relationship between sintering conditions and mechanical properties were examined for fully densified Si3N4 with different, β phase fractions (0.2 to 1). The samples were sintered by a capsule-HIP method with Y2O3 and Al2O3 additives (6 mol% in total) at temperatures between 1823 to 2023 K, under 60 MPa for 1 hour. The elastic deformation was calculated by Vickers indentation recovery. The Vickers hardness reached the maximum value for a β phase fraction of about 0.5, while fracture toughness, elastic deformation, and Young's modulus increased as the β phase content augmented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 251: Symposium S – Pressure Effects on Materials Processing and Design , 1991 , 193
Copyright
Copyright © Materials Research Society 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Ziegler, G., Heinrich, J., and Wotting, G., J. Mater. Sci., 22, 3041 (1987).Google Scholar
2. Abe, O., J. Mater. Sc., 25, 3641 (1990).Google Scholar
3. Mitomo, M., Tsutsumi, M., and Tanaka, H., J. Ame. Ceram. Soc., 73, 2441(1990).CrossRefGoogle Scholar
4. Iturriza, I., Castro, F., and Fuentes, M., J. Mater. Sci., 24, 2047(1989).Google Scholar
5. Tanaka, K., Jpn. Inst. Metals., 48, 1157(1984).Google Scholar
6. Suganuma, T., J. Elect. Microsc., 34, 328(1985).Google Scholar
7. Watari, K., Seki, Y., and Ishizaki, K., J. Cerm. Soc. Jpn., 97, 56(1989).CrossRefGoogle Scholar
8. Gazzar, C. P. and Messier, D. R., Cera. Bull.,56 777(1977).Google Scholar
9. Kawamoto, M. and Ishizaki, K., J. Mater. Sci. Let., 7., 1193(1988).Google Scholar
10. Takatori, K., Shimada, M., and Koizumi, M., Yogyo-Kyokai shi, 89, 197(1981).Google Scholar