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Objective. The present study, divided into two parts, aimed to compare the strength, fracture toughness and microstructure of a range of all-ceramic materials. In part I, three hot-pressed glass-ceramics (IPS-Empress, Empress 2 and a new experimental ceramic) and alumina glass-infiltrated ceramics (In-Ceram Alumina), processed by both slip casting and dry pressing, were compared.Methods. Tensile strength...
The erosion behaviour of three kinds of commercial alumina ceramics with different microstructures and mechanical properties has been investigated under airborne and slurry erosion conditions. The effect of the angle of impact of the erodent stream on the erosion rate of these materials was determined. A large difference in erosion rates corresponding to shallow angle and normal impact was observed...
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