Haiyan LI, Hongjian HAO, Yuan TIAN, Changan WANG, Yiwang BAO, Detian WAN. Effects of Residual Stresses on Strength and Crack Resistance in ZrO2 Ceramics with Alumina Coating [J]. Journal of Inorganic Materials, 2022, 37(4): 467
- Journal of Inorganic Materials
- Vol. 37, Issue 4, 467 (2022)
1. (a) Schematic diagram of the ACZS pre-stressed ceramics; (b) SEM image of interface between ZrO2 substrate and Al2O3 coating
2. (a) Typical Vickers indentation of ZrO2 ceramics; (b) Optical photograph of the indentation morphology for ZrO2 ceramics without residual stress
3. Optical photographs of the indentation morphologies for ACZS pre-stressed ceramics with different ratios of the cross-sectional areas, showing the effects of the compressive stresses in the coating and tensile stresses in the substrate
4. Stress state and Vickers indentation of ACZS pre-stressed ceramics
h s and h c: the thicknesses of substrate and coating
5. Calculated residual stress in the Al2O3 coating and ZrO2 substrate of ACZS pre-stressed ceramics, as the function of the ratio of cross-sectional area of ZrO2 substrate to Al2O3 coating
6. SEM images of the fracture surfaces for monolithic ZrO2 ceramics (a, b) and ZrO2 substrate of ACZS pre-stressed ceramics (c, d) fabricated by the hot-pressing sintering method
7. Residual strength of ACZS pre-stressed ceramics and ZrO2 ceramics, after quenching at different thermal shock temperatures
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Table 1.
Parameters used in formulas and the results of the experiment and simulation
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