Knowledge Management System Of The Institute of Oceanology, CAS
| Releasing kinetics of dissolved copper and antifouling mechanism of cold sprayed copper composite coatings for submarine screen doors of ships | |
| Rui, Ding1,3; Li, Xiangbo2; Jia, Wang4; Li, Weihua5; Xiao, Wang6; Gui, Taijiang6 | |
| 2018-09-30 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 763Pages:525-537 |
| Corresponding Author | Li, Xiangbo(lixb@sunrui.net) |
| Abstract | Copper composite coatings were prepared by cold spray technology to solve the problem of biofouling and attachment on submarine screen doors of ships where the flow of seawater was fast. Cuprous oxide powder, which was difficult to deposit, was sufficiently incorporated into the coatings by plastically deformable copper powder and filled the gaps between copper particles and reduced the porosity of the coatings. During spraying, micro-hammering effect of copper particles enhanced the strength and hardness of the coatings. The release of effective antifouling components was achieved by electrochemical dissolution processes, which contained four sub-processes and could be described by kinetic equations i = i(L)[1 - exp(-F Delta E/2RT)] and i(L) = FDCuCl2- k(4)[Cl-]/(DCuCl2- + k(-4)sigma). In the view of microcosmic point, cuprous oxide and surrounding copper played the role of cathode and anode separately, and constituted corrosion microcells which accelerated the local electrochemical dissolution of anodic copper. When cuprous oxide was dissolved, the anode and cathode interchanged, and this exchange continued to promote the electrochemical dissolution of copper within the micropores formed at the position of original cuprous oxide. The antifouling ability of the coatings was obtained by forming water film on its surface, and the water film was rich in dissolved copper elements. The concentration of dissolved copper was controlled by the electrochemical dissolution of the coatings. This mechanism was suitable for most copper-based anti-fouling materials. (C) 2018 Elsevier B.V. All rights reserved. |
| Keyword | Cold spray Antifouling mechanism Copper Kinetics |
| DOI | 10.1016/j.jallcom.2018.05.355 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | China Postdoctoral Science Fund[2018M632726] ; State Key Laboratory for Marine Coatings[20180501DR] ; Qingdao Independent Innovation Special Project[16-7-1-2-ZDZXX] ; National Science Fund for Distinguished Young Scholars[51525903] ; Qingdao national laboratory for marine science and technology[2017ASTCP-OS09] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000442484300062 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/159896 |
| Collection | 中国科学院海洋研究所 |
| Corresponding Author | Li, Xiangbo |
| Affiliation | 1.Yantai Univ, Coll Oceanog, Yantai 264005, Peoples R China 2.Luoyang Ship Mat Res Inst LSRMI, Sci & Technol Marine Corros & Protect Lab, Qingdao 266101, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 4.Ocean Univ China, Qingdao 266001, Peoples R China 5.Sun Yat Sen Univ, Coll Chem Engn & Technol, Zhuhai 519082, Peoples R China 6.Marine Chem Res Inst, State Key Lab Marine Coatings, Qingdao 266071, Peoples R China |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Rui, Ding,Li, Xiangbo,Jia, Wang,et al. Releasing kinetics of dissolved copper and antifouling mechanism of cold sprayed copper composite coatings for submarine screen doors of ships[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,763:525-537. |
| APA | Rui, Ding,Li, Xiangbo,Jia, Wang,Li, Weihua,Xiao, Wang,&Gui, Taijiang.(2018).Releasing kinetics of dissolved copper and antifouling mechanism of cold sprayed copper composite coatings for submarine screen doors of ships.JOURNAL OF ALLOYS AND COMPOUNDS,763,525-537. |
| MLA | Rui, Ding,et al."Releasing kinetics of dissolved copper and antifouling mechanism of cold sprayed copper composite coatings for submarine screen doors of ships".JOURNAL OF ALLOYS AND COMPOUNDS 763(2018):525-537. |
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