Changes in Microstructures and Properties of Al2O3/ZrO2 (Y2O3) with Different Content of ZrO2 |
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| Journal | Advanced Materials Research (Volumes 105 - 106) |
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| Volume | Chinese Ceramics Communications |
| Edited by | Wei Pan and Jianghong Gong |
| Pages | 1-4 |
| DOI | 10.4028/www.scientific.net/AMR.105-106.1 |
| Citation | Chuan Zeng Pan et al., 2010, Advanced Materials Research, 105-106, 1 |
| Online since | April, 2010 |
| Authors | Chuan Zeng Pan, Long Zhang, Zhong Min Zhao, Zhen Sheng Qu, Quan Yang, Xue Gang Huang |
| Keywords | Al2O3/ZrO2 (Y2O3) Composite, Combustion Synthesis (CS), High Gravity, Rapid Solidification |
| Abstract | Based on preparation of Al2O3/ZrO2 (4Y) by combustion synthesis in high-gravity field, the microstructure transformation and properties of the materials are investigated through adjusting the ZrO2 (4Y) content in the composites. As the content of ZrO2 changed from 37% to 40%, the microstructures of the ceramics transformed the sphere-like tetragonal ZrO2 crystals from the rod-shaped colonies with nanocrystalline structures. Al2O3/33%ZrO2 (4Y) had the maximum relative density, hardness and flexural strength due to the low solidification temperature, the highest volume fraction of the colonies, small-size defect and high fracture toughness, whereas Al2O3/44%ZrO2 (4Y) was somewhat weakened in strength in despite of its highest fracture toughness. |
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