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题名: Crystallography and interfacial structure in a directionally solidified Al2O3/Y3Al5O12/ZrO2 eutectic crystal
作者: Wang, X;  Zhong, YJ;  Sun, Q;  Li, YR;  Zhang, W;  Qi, DQ;  Wang, D;  Jiang, BL
发表日期: 2018-3-1
摘要: The single crystal of Al2O3/Y3Al5O12/ZrO2 ternary eutectic was prepared by an optical floating zone furnace. The crystallography and interfacial structure of the directionally solidified ternary eutectic were investigated by means of electron backscattered diffraction and transmission electron microscopy. We found that the preferred crystallographic orientation of the Al2O3/Y3Al5O12/ZrO2 eutectic crystal was {1120} < 1100 > Al2O3 ||{001} < 001 > Y3Al5O12 ||{001} < 001 > ZrO2. Most of the tiny ZrO2 locates dispersively between Al2O3 and Y3Al5O12. It can be concluded that interfacial energy between Al2O3-Y3Al5O12-ZrO2 played an important role in deciding the preferred crystallographic orientations of the Al2O3/Y3Al5O12/ZrO2 eutectic and the precipitation behavior of the ZrO2 phase. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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Recommended Citation:
Wang, X,Zhong, YJ,Sun, Q,et al. Crystallography And Interfacial Structure In A Directionally Solidified Al2o3/y3al5o12/zro2 Eutectic Crystal[J]. Scripta Materialia,2018,145:23-27.

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