Article ID Journal Published Year Pages File Type
1499423 Scripta Materialia 2012 4 Pages PDF
Abstract
10 vol.% zirconia-toughened alumina was reinforced with 5 vol.% cerium hexaaluminate precipitates by in situ reduction of cerium dioxide during hot pressing at 1425-1550 °C. The microstructure, mechanical properties and phase relations were determined. With increasing sintering temperature the microstructure shifts from a fine grain inter-type to a coarse grain inter-type composite structure, and the orientation of precipitates changes from perpendicular to the pressing plane to random. Mechanical properties change drastically during the microstructural transformation.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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