Abstract
Constant-stress compression creep experiments have been performed on low-density yttria/rare earth-stabilized zirconia (YRESZ) containing 12.5 and 14.5 weight percent Y2O3. Major microstructural modifications which occur in these materials at high temperature serve to increase creep strength without increasing the overall density. The constitutive equations describing steady-state creep behavior of low-density YRESZ all contain a stress exponent n ≈ 3.2 and a creep activation energy Qc ≈ 128 kcal/mole. The pre-exponential structure factors vary with thermal history.
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References
C. R. Tinsley, “Research and Development Testing of Yttria/ Rare Earth Stabilized Zirconia Matrix Bricks in the Pilot Test Unit (PTU) at AEDC”, AEDC-TR-72-161, November, 1972.
M. S. Seltzer, A. H. Clauer, and B. A. Wilcox, “High-Temperature Creep of Ceramics”, First Annual Report, to Aerospace Research Laboratories on Contract No. F33615-73-C-4111, February 28, 1974.
L. L. Fehrenbacher, F. P. Bailey, and N. A. McKinnon, SAMPE Quarterly, 2 (3) 48 (1971).
F.R.N. Nabarro, Phil. Mag., 16, 231 (1967).
W. R. Cannon and D. D. Sherby, J. Amer. Ceram. Soc., 56, 157 (1973).
J. Weertman, ASM Trans. Quart., 61, 681 (1968).
W. H. Rhodes and R. E. Carter, J. Amer. Ceram. Soc., 49, 244 (1966).
L. A. Simpson and R. E. Carter, J. Amer. Ceram. Soc., 49, 139 (1966).
W. D. Kingery, J. Pappis, M. E. Doty, and D. C. Hill, J. Amer. Ceram. Soc., 42, 393 (1959).
J. Weertman, J. Appl. Phys., 28, 1185 (1957).
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© 1975 Plenum Press, New York
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Seltzer, M.S., Talty, P.K. (1975). Creep of Low-Density Yttria/Rare Earth-Stabilized Zirconia. In: Bradt, R.C., Tressler, R.E. (eds) Deformation of Ceramic Materials. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4431-5_15
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DOI: https://doi.org/10.1007/978-1-4613-4431-5_15
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