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- W141823009 abstract "The microstructure mechanical properties, fracture behavior and toughening mechanisms of the Al2O3−25 vol% ZrO2 (2 mol% Y2O3)−25 vol% SiCw (AZS) ceramic composite were investigated by means of XRD, SEM, TEM, EPMA techniques and three-point bending and Vicker's hardness tests. It is shown that the material shows an excellent combination of strength and toughness. The Al2O3 matrix is simultaneously strengthened and toughened by both ZrO2 particles and SiC whiskers. The flexural strength and indentation toughness of the AZS at room temperature are 676 MPa and 10·8 MPa m12, respectively. The load-displacement curve of three-point bending of the AZS is sawtoothed in shape which is the result of repeated initiation and stopping of crack propagation by whiskers. Finally, a model of the toughening mechanisms of both ZrO2 particles and SiCw is discussed." @default.
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- W141823009 date "1994-01-01" @default.
- W141823009 modified "2023-10-11" @default.
- W141823009 title "Microstructure and fracture behavior of an Al2O3ZrO2SiCw ceramic composite" @default.
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- W141823009 doi "https://doi.org/10.1016/0272-8842(94)90064-7" @default.
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