Abstract
Plastic deformation of materials in the general sense can be defined as irreversible deformation, which means that in a tensile or compression test after loading and unloading a deformation remains. Different mechanisms can be responsible for such an irreversible or plastic deformation: dislocation motion, vacancy motion, twinning, phase transformation, and viscous flow of amorphous materials. In a polycrystalline or multiphase material the deformation can take place within the grains or predominantly along the grain or phase boundaries. In metals at room temperature dislocation motion is the most important deformation mechanism. In ceramics dislocation motion requires high shear stresses due to covalent bonds. Therefore under most loading conditions ceramics fail by the extension of flaws, whereas the competing failure mechanism by dislocation motion would require higher stresses. Nevertheless the plastic deformation and the formation of dislocations have been observed under specific loading conditions.
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References
Makino, H., Kamiya, N., Wada, S. (1991): Effects of grain size of hot-pressed silicon nitride on contact damage morphology and residual strength, J. Am. Ceram. Soc. 74, 2002–2004.
Guiberteau, F., Padture, N.P., Lawn, B.R. (1994): Effect of grain size on Hertzian contact damage in alumina, J. Am. Ceram. Soc. 77, 1825–1831.
Rombach, M., Hollstein, T. (1995): Untersuchungen zum mechanischen Verhalten von Siliciumnitrid in einem Kugel-Platte-Kontakt, Mat.-wiss. und Werkstofftech. 26, 276–282.
Lee, S.K., Wuttiphan, S., Lawn, B.R. (1997): Role of microstructure in Hertzian contact damage in silicon nitride: I, mechanical characterization, J. Am. Ceram. Soc. 80, 2367–2381.
Hertz, H. (1882): Über die Berührung fester elastischer Körper, J. reine angew. Mathematik 92, 165–171.
Timoshenko, S.P., Goodier, J.N. (1970): Theory of Elasticity, McGraw-Hill, Japan.
Fischer-Cripps, A.C., Lawn, B.R. (1996): Stress analysis of contact deformation in quasi-plastic ceramics, J. Am. Ceram. Soc. 79, 2609–2618.
Xu, H.H.K., Wie, L., Padture, N.P., Lawn, B.R., Yeckley (1995): Effect of micro-structural coarsening on Hertzian damage in silicon nitride, J. Mater. Sci. 30, 869–878.
Pfeiffer, W., Rombach, M., Sommer, E. (1996): Assessment of strength-dominating near-surface-characteristics of machined ceramics, Fracture Mechanics of Ceramics, Vol. 11, 401–412, Plenum Press, New York.
Chen, I.W., Reyes-Morel, P.E. (1986): Implications of transformation plasticity in ZrO2-containing ceramics: I, Shear and dilatation effects, J. Am. Ceram. Soc. 69, 181.
Chen, I.W. (1991): Model of transformation toughening in brittle material, J. Amer. Ceram. Soc. 74, 2564–2572.
Rauchs, G. (1998): Untersuchungen zur tetragonal-monoklinen Phasenumwandlung in CeO2-stabilisiertem Zirkonoxid bei mehrachsiger Belastung, Thesis, University of Karlsruhe, Karlsruhe, Germany.
Becher, P.F., Swain, M.V. (1992): Grain-size-dependent transformation behaviour in polycrystalline tetragonal zirconia, J. Am. Ceram. Soc. 75, 493–502.
Cao, H., Evans, A.G. (1993): Nonlinear deformation of ferroelectric ceramics, J. Amer. Ceram. Soc. 76, 890–896.
Schäufele, A., Härdtl, K.H. (1996): Ferroelastic properties of lead zirconate titanate ceramics, J. Amer. Ceram. Soc. 79 (1996), 2637–2640.
Fett, T., Müller, S., Munz, D., Thun, G. (1998): Nonsymmetry in deformation behaviour of PZT, J. Mater. Sci. Letters 17, 261–265.
Nadai, A. (1959): Theory of Flow and Fracture of Solids (Chapter 22), Vol. 1, McGraw-Hill, New York.
Fett, T., Munz, D., Thun, G. (1998): Nonsymmetric deformation behaviour of PZT determined in bending tests, J. Am. Ceram. Soc. 81, 269–272.
Subbarao, E.C., McQuarrie, M.C., Buessem, W.R., Domain effects in polycrystalline barium titanate, J. Appl. Phys. 28 (1957), 1194–1200.
Fett, T., Thun, G. (1998): Determination of room-temperature tensile creep of PZT, to appear in J. Mater. Sci. Letters, Vol 17.
Finlayson, T.R., Gross, A.H., J.R. Griffiths, E.H. Kisi (1994): Creep of Mg-PSZ at room temperature, J. Am. Ceram. Soc. 77, 617–624.
Pan, L.S., Horibe, S. (1996): An in-situ investigation on the critical phase transformation stress of tetragonal zirconia polycrystalline ceramics, J. Mater. Sci. 31, 6523–6537.
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© 1999 Springer-Verlag Berlin Heidelberg
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Munz, D., Fett, T. (1999). Plasticity. In: Munz, D., Fett, T. (eds) Ceramics. Springer Series in Materials Science, vol 36. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-58407-7_13
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DOI: https://doi.org/10.1007/978-3-642-58407-7_13
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