Final Report on Materials Characterization for the wetted Cathodes for Low-Temperature Aluminum Smelting Program.

Windisch, C. F.

Technical Information Center Oak Ridge Tennessee

关键词: Cathodes;    Smelting;    Aluminum;    Characterization;    Materials;   

RP-ID  :  DE200515010060

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The objective of this project was to perform post-test characterization of cathode samples that were subjected to electrolysis testing by Northwest Aluminum Technologies, Inc. (NAT), Seattle, WA. The electrolysis tests were performed in a novel low-temperature cell for smelting aluminum metal that is being developed by NAT with funding from the Office of Industrial Technologies, U.S. Department of Energy. Cathodes in this cell design were in the form of small, thin plates. After testing, the plates were sent to Pacific Northwest National Laboratory (PNNL), where they were mounted, cross sectioned, and polished. A combination of optical microscopy, scanning electron microscopy (SEM), and energy dispersive x-ray spectroscopy (EDS) analysis was then performed on them to determine the extent of degradation the samples had undergone, the characteristics of the Al metal layer that coated the cathodes, and the identity of reaction phases within and on the outside of the cathode material.