首页|Large Bulk Al_2O_3/ZrO_2 (Y_2O_3) Nanocrystalline Composites Prepared by Combustion Synthesis under High Gravity

Large Bulk Al_2O_3/ZrO_2 (Y_2O_3) Nanocrystalline Composites Prepared by Combustion Synthesis under High Gravity

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  • Trans Tech Publications Ltd
The large bulk Al_2O_3/ZrO_2 (Y_2O_3) eutectics were achieved by combustion synthesis in high-gravity field. With increasing high-gravity level, the matrix of eutectics transformed the rod-shaped colonies from the cellular ones, and the nanocrystalline microstructures came into existence as the high-gravity level was larger than 200g. The relative density, hardness, flexural strength and fracture toughness increased simultaneously with increasing high-gravity level, and reached the maximum values of 98.6%, 18.6GPa, 1248MPa and 15.6MPa·m~(1/2) respectively as the high-gravity level was 250g.

Al_2O_3/ZrO_2 (Y_2O_3)combustion synthesishigh gravity

Zhongmin Zhao、Long Zhang、Chuanzeng Pan、Quan Yang、Zhensheng Qu、Guanling Su、Xuegang Huang、Minquan Wang

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Institute of Advanced Materials, Mechanical Engineering College, Shijiazhuang 050003, China

Center for Education Technology, Mechanical Engineering College, Shijiazhuang 050003, China

2010

10.4028/www.scientific.net/KEM.434-435.9

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.434/435
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