CYCLIC FATIGUE OF ZIRCONIA |
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| Authors: | R Schmitt T Fett D Munz |
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| Affiliation: | Universität Karlsruhe, Institut für Zuverlässigkeit und Schadenskunde im Maschinenbau und Forschungszentrum Karlsruhe, Institut für Materialforschung II |
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| Abstract: | Two partially-stabilized zirconia materials, Mg-PSZ and Y-PSZ, were investigated in static and cyclic fatigue tests. The crack growth rates were determined as a function of the stress intensity factor (static tests) and the stress intensity factor range (cyclic tests). For all R-ratios investigated the crack-growth relations are sufficiently described by power laws. An influence of frequency is obvious. Finally, the crack growth behaviour of natural flaws is compared with that of macroscopic cracks |
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| Keywords: | Ceramic materials Cyclic fatigue Static fatigue Lifetimes Zirconia |
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