In situ photoelectron emission microscopy of a thermally induced martensitic transformation in a CuZnAl shape memory alloy

被引：10
作者：
Xiong, G
Joly, AG
Beck, KM
Hess, WP
Cai, MD
Langford, SC
Dickinson, JT [1 ]
机构：
[1] Washington State Univ, Dept Phys & Astron, Pullman, WA 99164 USA
[2] Pacific NW Natl Lab, Richland, WA 99352 USA
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 09期
关键词：
D O I：
10.1063/1.2177450
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report photoelectron emission microscope observations of the thermal martensitic transformation in a CuZnAl shape memory alloy. The phase transformation appears at 48 degrees C during heating and at 42 degrees C upon cooling. The transformation is marked by a sharp change in photoelectron intensity, as well as a significant displacement and reorientation of surface features. The difference in the photoelectron intensity before and after the transformation is attributed to a change in work function of about 0.2 eV. Photoemission electron microscopy provides real-time information on microstructural changes and phase-dependent electronic properties. (c) 2006 American Institute of Physics.
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