Conclusions
Following a single procedure, we studied the strength, the deformability, and the crack resistance of a number of ceramics based on zirconium dioxide containing stabilizing additives (magnesium oxide or yttrium oxide); their mechanical behavior was found to differ significantly. In particular, zirconium dioxide containing yttrium oxide (a brittle material with X=1) is linear-elastic up to its fracture; on the other hand, zirconium dioxide containing magneisum oxide (a relatively brittle material having χ<1) exhibits nonlinear behavior. In view of this, the resistance to crack growth, the temperature dependence of the deformation diagrams, and the other specific features of mechanical behavior of these types of ceramics differ significantly.
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Literature cited
G. A. Gogotsi, “The use of brittleness measure to represent mechanical behavior of ceramics,” Ceram. Int., No. 1, 127–129 (1989).
G. A. Gogotsi, “Prediction of the specific features of the mechanical behavior of ceramics and refractories on the basis of their characteristic brittleness indices,” Ogneupory, No. 11, 18–23 (1986).
D. B. Marshall and J. E. Ritter, “Reliability of advanced structural ceramics and ceramic matrix composites. A review,” Am. Ceram. Soc. Bull., No. 2, 809–817 (1987).
G. A. Gogotsi, “Mechanical behavior of the ceramics not obeying Hooke's law,” Poroshk. Metall., No. 11, 79–85 (1988).
G. A. Gogotsi, Ya. L. Grushevskii, and A. V. Kurashevskii, “Determining the strength of refractories taking the actual relationship between stresses and strains,” Ogneupory, No. 11, 45–50 (1976).
D. B. Marshall, “Strength characteristics of transformation-toughened zirconia,” J. Am. Cerm. Soc., No. 3, 173–180 (1986).
M. V. Swain, “Inelastic deformation of MgO-PSZ and its significance for strength-toughness relationship of zirconia toughened ceramics,” Acta Metall., No. 11, 2083–2091 (1985).
G. A. Gogotsi, Yu. I. Komolikov, D. Yu. Ostrovoi, et al., “Strength and crack resistance of the ceramics based on zirconium dioxide,” Probl., Prochn., No. 1, 50–52 (1988).
D. B. Marshall and M. V. Swain, “Crack resistance curve in magnesia partially-stabilized zirconia,” J. Am. Ceram. Soc., No. 6, 399–407 (1988).
G. A. Gogotsi, V. P. Zavada, A. I. Fesenko, and V. I. Galenko, Crack Resistance of Transformation-Strengthened Ceramics [in Russian], Dep. VNIITI 25.04.89, No., 2690-B-89, Kiev (1989).
T. Kobayashi, K. Matsunama, H. Ikawa, and K. Motoyoshi, “Measurement of fracture toughness and effect of loading rate on its value in PSZ and Si3N4 ceramics,” J. Jpn. Inst. Met., No. 8, 723–729 (1982).
G. A. Gogotsi, “Classification of materials having low deformability on the basis of the specific features of their behavior during the loading process,” Probl. Prochn., No. 1, 77–82 (1979).
R. Stevens, Zirconia and Zirconia Ceramics, Magnesium Electron Ltd. (1986).
R. L. K. Matsumoto, “Ferroelastic domain switches as a toughening mechanism in tetragonal zirconia,” J. Am. Ceram. Soc., No. 10, 224–226 (1986).
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Translated from Poroshkovaya Metallurgiya, No. 10 (346), pp. 51–56, October, 1991.