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题名: Fracture morphology and mechanism of a directionally solidified Al2O3/Y3Al5O12 eutectic single crystal
作者: Wang, Xu;  Zhong, Yujie;  Wang, Dong;  Xian, Quangang;  Wang, Jingyang;  Lou, Langhong;  Zhang, Jian
发表日期: 2017-7-1
摘要: The strength and fracture behavior of a directionally solidified Al2O3/Y3Al5O12 eutectic single-crystal were investigated. To identify and classify the toughening mechanism, fractography of the single-crystal was thoroughly analyzed. It was observed that the interfaces between Al2O3 and Y3Al5O12, which hindered the crack propagation, and nm-sized (111) cleavage planes appearing along the tearing ridge of Y3Al5O12 markedly improved the Al2O3/Y3Al5O12 eutectic single-crystal toughness. These results could improve understanding of the microstructure design and deformation mechanism of the Al2O3/Y3Al5O12 eutectic crystal. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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Recommended Citation:
Wang, Xu,Zhong, Yujie,Wang, Dong,et al. Fracture Morphology And Mechanism Of A Directionally Solidified Al2o3/y3al5o12 Eutectic Single Crystal[J]. Scripta Materialia,2017,135:46-49.

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