| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1502266 | Scripta Materialia | 2006 | 4 Pages |
Abstract
Y2O3 doped Al2O3/ZrO2 composites mainly composed of randomly-oriented rod-shaped eutectic grains are prepared by combustion synthesis; within the rod-shaped grains, t-ZrO2 aligned nano-micron fibers are embedded. The increase of the hardness or strength of the ceramics could be attributed to nano-submicron inter-phase spacing and the refinement of the eutectic grains, whereas high-energy, high-angle boundaries between rod-shaped grains could also introduce strong toughening mechanisms involving crack-bridging and pull-out of rod-shaped grains, crack-bridging and frictionally interlocked effects of α-Al2O3 platelet grains.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Zhongmin Zhao, Long Zhang, Yigang Song, Weiguo Wang, Jiang Wu,