Microstructure and mechanical properties of Al2O3/ZrO2 eutectic ceramic composites prepared by explosion synthesis
Microstructure and mechanical properties of Al2O3/ZrO2 eutectic ceramic composites prepared by explosion synthesis
复制标题
爆炸合成Al2O3/ZrO2共晶陶瓷复合材料的显微组织和力学性能
DOI:
10.1016/j.jallcom.2012.11.064
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发表时间:
2013-02
影响因子:
6.2
通讯作者:
Yang, Pan
中科院分区:
文献类型:
--
作者:
Zheng, Yong-ting;Li, Hong-Bo;Zhou,Tao;Zhao, Jing;Yang, Pan
Al2O3/ZrO2eutectic ceramics were prepared by explosion synthesis using Al and Zr(NO3)4as raw materials. The Al2O3/ZrO2eutectic microstructure showed that the rod-like ZrO2phases with a diameter 200nm were embedded orderly in Al2O3matrix. With the increasing of the reaction temperature, the volume content of the Al2O3/ZrO2eutectic increased accordingly, and the diameter and phase spacing of the rod-like ZrO2decreased, which was mainly attributed to the sufficient diffusion at higher temperature and the large degree of supercooling. Due to the fine microstructure of the Al2O3/ZrO2eutectic, the Vickers hardness and fracture toughness can reach 17.7GPa and 10.3MPam1/2, respectively.
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