Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1502763 | Scripta Materialia | 2008 | 4 Pages |
Abstract
Al2O3/ZrO2 (Y2O3) plates were prepared by combustion synthesis under high gravity (>200g) and the ceramics were composed of randomly orientated colonies containing a triangular dispersion of orderly nano-submicrometer t-ZrO2 fibers, surrounded by inter-colony regions containing micrometer size t-ZrO2 spherical grains. The high strength (close to 1.6 GPa) of the ceramics was attributed to small-size defect and high fracture toughness (close to 15.0 MPa m1/2) dependent on an intensive coupled toughening mechanism.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Zhongmin Zhao, Long Zhang, Yigang Song, Weiguo Wang,