Abstract
In zirconia systems, the tetragonal to monoclinic phase transformation which occurs at ~1000–1200°C is martensitic1,2 and stressinduced.3,4,5 As a result, when the elevated temperature phase is retained metastably at room temperature6 and the transformation is stress-induced,3–5,7 significant gains occur in strength and fracture toughness. The improved strength and toughness in most of these ZrO2 systems have been attributed to the tetragonal to monoclinic phase (t → m) transformation in the vicinity of the propagating cracks.7–16 The stress intensity is reduced upon phase transformation at the crack tip stress field, thereby requiring additional stress for crack extension. Also the transformation was greater, the nearer the transformation temperature Ms to the ambient temperature
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Gupta, T.K., Andersson, C.A. (1984). Low Temperature Mechanical Properties of CeO2-Alloyed Tetragonal Zirconia. In: Clark, A.F., Reed, R.P. (eds) Advances in Cryogenic Engineering Materials . Advances in Cryogenic Engineering, vol 30. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-9868-4_43
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DOI: https://doi.org/10.1007/978-1-4613-9868-4_43
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