Hostname: page-component-76fb5796d-vfjqv Total loading time: 0 Render date: 2024-04-26T17:09:05.519Z Has data issue: false hasContentIssue false
  • English
  • Français

The Temperature Dependence of Yield Stress and Fracture Toughness in Unstabilized Zirconia Crystals

Published online by Cambridge University Press:  25 February 2011

T. W. Coyle ,
R. P. Ingel  and
P. A. Willging
T. W. Coyle
Affiliation:
Ceramics Division, National Bureau of Standards, Gaithersburg, MD 20899
R. P. Ingel
Affiliation:
Ceramics Branch, U.S. Naval Research Laboratory, Washington, DC 20375
P. A. Willging
Affiliation:
Ceramics Branch, U.S. Naval Research Laboratory, Washington, DC 20375
Get access

Abstract

The flexural strength and the single edge notch beam fracture toughness of undoped ZrO2 crystals, grown by the skull melting technique, were examined from room temperature to 1400°C. On heating the toughness increased with test temperature to a maximum of 4.0 MPajm at 1225°C then gradually decreased to 2.6 MPa/m. Upon cooling after a 20 minute hold at 1250°C an increase in toughness to 5 MPa/m was observed at 1200°C; upon cooling to lower temperatures Kic gradually diminished. The loaddeflection curves for the flexural strength tests showed marked nonlinearity before failure for samples tested on cooling. The temperature dependence of the apparent yield stress suggests that initial yielding occurs by slip above 1200°C but that from 1200°C to 1050°C the observed yielding is due to stress induced tetragonal to monoclinic transformation.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 78: Symposium E – Advances in Structural Ceramics , 1986 , 89
Copyright
Copyright © Materials Research Society 1987

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 Evans, A. G. and Cannon, R. M., “Toughening of Brittle Solids by Martensitic Transformations”, Acta Metall. 34 [5] 761–800 (1986).Google Scholar
2 Ruhle, M., Claussen, N. and Heuer, A.H., “Microstructural Studies of Y2O3-Containing Tetragonal ZrO2 Polycrystals (Y-TZP)”, pp. 352–370 in Advances in Ceramics, Vol.12, Science and Technology of Zirconia II. Edited by Claussen, N., Ruhle, M., and Heuer, A.H., American Ceramic Society, Columbus, OH, 1984.Google Scholar
3 Ingel, R. P., Ph.D.Thesis, Catholic University of America, Washington, DC, 1982, Univ. Microfilms Int. #8302474.Google Scholar
4 Lankford, J., “Deformation and Fracture of Yttria-Stabilized Zirconia Single Crystals”, J. Mat. Sci., 21 1981–1989 (1986).Google Scholar
5 Ingel, R.P., Lewis, D., Bender, B.A., and Rice, R.W., “Temperature Dependence of Strength and Fracture Toughness of ZrO2 Single Crystals”, J. Am. Ceram. Soc. 65 [9] C150–C152 (1982).Google Scholar
6 Lankford, J., Rabenberg, L., and Page, R.A., “Deformation ande Damage Mechanisms in Yttria-Stabilized Zirconia”, submitted to J. Am. Ceram. Soc.Google Scholar
7 Adams, J.W., Nakamura, H.H., Ingel, R.P. and Rice, R.W., ”Thermal Expansion Behavior of Single Crystal Zirconia”, J. Am. Ceram. Soc. 68 [9] C228–C231 (1985).Google Scholar
8 Perry, C.H., Liu, D.-W. and Ingel, R.P., “Phase Characterization of Partially Stabilized Zirconia by Raman Spectroscopy”, J. Am. Ceram. Soc. 68 [68] C184–C187 (1985).CrossRefGoogle Scholar
9 Block, S., deJornada, J.A.H. and Piermarini, G.J., “Pressure-Temperature Phase Diagram of Zirconia”, J. Am. Ceram. Soc. 68 [9] 497–499 (1985).Google Scholar
10 Alzyab, B., Perry, C.H. and Ingel, R.P., “High Pressure Phase Transitions in Zirconia and Yttria Doped Zirconia”, Submitted to J. Am. Ceram. Soc. (1986).CrossRefGoogle Scholar
11 Coyle, T.W., “Transformation Toughening and the Martensitic Transformation in Zr02 “, Thesis, Sc.D., Massachusetts Institute of Technology, Cambridge, MA, February, 1985 Google Scholar
12 I Aleksandrov, V., Osiko, V.V., Prokhorov, A.M. and Tatarintsev, V.M., “Synthesis and Crystal Growth of Refractory Materials by RF Melting in a Cold Container”, Current Topics in Materials, Vol.1, Chapter 6, Kaldis, E., ed. North-Holland Publishing Co. (1978).Google Scholar
13 Ingel, R.P. and Lewis, D., “Lattice Parameters and Density for Y2O3- Stabilized ZrO2 “, J. Am. Ceram. Soc. 1986.Google Scholar
14 Ingel, R.P., Willging, P.A., Bender, B.A. and Coyle, T.W., ”The Physical and Thermo-Mechanical Properties of Monoclinic Single Crystals”, to be published in the Proceedings of the Third International Conference on the Science and Technology of Zirconia, Tokyo, Japan, Sept., 1986.Google Scholar
15 Bender, B.A., unpublished workGoogle Scholar
16 Lanteri, V., Heuer, A.H., and Mitchell, T.E., “Tetragonal Phase in the System ZrO2-Y2O3”, pp. 118–130 in Advances in Ceramics, Vol.12, Science and Technology of Zirconia II. Edited by Claussen, N., Ruhle, M., and Heuer, A.H., American Ceramic Society, Columbus, OH, 1984.Google Scholar
17 Dominguez-Rodriguez, A., Lagerloff, K.P.D., and Heuer, A.H., “Plastic Deformation and Solid-Solution Hardening of Y2 03-Stabilized Zr02”, J. Am. Ceram. Soc. 69 [3] 282–284 (1986).CrossRefGoogle Scholar
18 Patel, J.R. and Cohen, M., “Criterion for the Action of Applied Stress in the Martensitic Transformation”, Acta Metall. 1 531–538 (1953).Google Scholar
19 Olson, G.B. and Cohen, M., “A Mechanism for the Strain-Induced Nucleation of Martensitic Transformations”, J. Less-Common Metals, 28 107 (1972).Google Scholar
20 Olson, G.B., “Transformation Plasticity and the Stability of Plastic Flow”, pp. 391–423 in proceedings of the ASM Materials Science Seminar “Deformation, Processing, and Structure”, St. Louis, MO, 1982, American Society for Metals, 1983.Google Scholar
21 Olsen, G.B. and Cohen, M., “Thermal-Elastic Behavior in Martensitic Transformations”, Scripta Metall. 9 1247–1254 (1975).Google Scholar
22 Swain, M.V., “Shape Memory Behavior in Partially Stabilized Zirconia Ceramics”, Nature 32 234–236 (1986).CrossRefGoogle Scholar