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Study on the thermal treatment conditions for fabricating open-cell structure Cu-Sn alloy foams

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Abstract
Cu-Sn alloy foams, with an open-cell structure, were fabricated by Cu/Sn coelectrodeposition onto a polyurethane (PU) template in an alkaline electrolyte with a citrate complexing agent before undergoing a subsequent thermal treatment for PU removal in a N-2 gas environment. These foams were predominantly comprised of a Cu matrix along with Cu6Sn5 and Cu3Sn intermetallic compounds, which are known as active materials in Cu-Sn alloy electrodes used in rechargeable batteries. The chemical phase change of Cu-Sn alloy foams and its influence on the electrical resistance were studied according to the heating temperature and N-2 gas flow rate. Assuming the thermal degradation of PU as a first-order reaction, the dependence of the PU removal process on the heating temperature was also theoretically investigated. In addition, a postannealing process of the Cu-Sn alloy foams was employed to reduce their electrical resistance by promoting grain growth. (C) 2020 Elsevier B.V. All rights reserved.
Author(s)
예보라김선정
Issued Date
2021
Type
Article
Keyword
Alloy foamThermal treatmentPolyurethane templateAlloy electrodeposition
DOI
10.1016/j.jallcom.2020.157006
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8953
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_crossref_primary_10_1016_j_jallcom_2020_157006&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Study%20on%20the%20thermal%20treatment%20conditions%20for%20fabricating%20open-cell%20structure%20Cu-Sn%20alloy%20foams&offset=0&pcAvailability=true
Publisher
JOURNAL OF ALLOYS AND COMPOUNDS
Location
스위스
Language
영어
ISSN
0925-8388
Citation Volume
853
Citation Number
1
Citation Start Page
0
Citation End Page
0
Appears in Collections:
Engineering > Material Engineering
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