期刊
ULTRAMICROSCOPY
卷 141, 期 -, 页码 16-21出版社
ELSEVIER
DOI: 10.1016/j.ultramic.2014.03.002
关键词
Atom Probe Tomography (APT); Gas-solid reactions; In-situ experimentation; Catalysis
类别
资金
- Air Force Office of Scientific Research (AFOSR) [FA9550-10-1-0256]
- AFOSR [FA9550-11-1-0158, FA9550-12-0496]
- NSF [PHY CDI-09-41576]
- ARI Program [CMMI-09-389018]
- Wilkinson Professorship of Interdisciplinary Engineering
- Queen's College Oxford
An integrated environmental cell has been designed and developed for the latest generation of Atom Probe Tomography LEAP (TM) instruments, allowing controlled exposure of samples to gases at high temperatures. Following treatment, samples can be transferred through the LEAP vacuum system for subsequent APT analysis, which provides detailed information on changes to chemical microstructures Following the reactions with near-atomic resolution. A full description of the cell is presented, along with some sample results on the oxidation of aluminum and two platinum-group alloys, demonstrating the capability of combining exposure/characterization functionality in a single instrument. (C) 2014 Elsevier B.V. All rights reserved.
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