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Initial microstructural study of a Ce-La alloy using electron backscattered diffraction
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DOI：10.1016/j.jallcom.2011.01.002.png)
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摘要
En 中文
To better understand and exploit the unique electronic and structural properties of f-block metals and their alloys it is perceived that an improved knowledge of the microstructural characteristics and phase changes as a function of temperature and pressure, is necessary. For other different types of metallic systems, the use of electron back-scattered diffraction (EBSD) is becoming a common practice in order to obtain detailed microstructural information, but this has, as yet, been very limited in case of f-block metals. Because of their extreme affinity to oxygen and rapid surface reaction, EBSD studies of this metal-category are very sparse with only one work published on cerium metal providing an example of technical hurdles for a prerequisite oxide-free metal surface. Specifically the need to remove the oxide by ion etching was considered essential to enable a successful EBSD analysis. The current work presents the results of a first attempt to characterise the microstructure of a Ce-La alloy using EBSD. It demonstrates that high quality diffraction patterns and crystal orientation maps can be successfully obtained following a carefully controlled preparation of the alloy surface in the open laboratory by applying a simple and reproducible electro-polishing procedure without a further need for ion etching in vaccuo. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
Keyword:
Metals and alloys
Microstructure
Oxidation
Surface electron diffraction
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IF:
6.3
论文数:
8.4W
被引数:
24.3W
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