作者: M. Saadaoui , C. Olagnon , G. Fantozzi
DOI: 10.1016/S0272-8842(97)00084-9
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摘要: The thermal fatigue behaviour of a fine and coarse grain alumina ceramics were investigated both experimentally, via an instrumented shock apparatus, analytically. Indented rectangular specimens thermally cycled at applied temperature difference ΔT. determination the subcritical crack growth law responsible for was deduced from plot critical cycle number versus initial size. comparison this result to obtained isothermal mechanical test reveals that some cyclic effects are present life time therefore can not be predicted simple results. Calculation propagation using is in rather fair agreement with experiment material.