Liu Kai,Shen Xixun *,Ma Xiang,et al.Study on corrosion resistance and wear resistance of silver coatings strengthened by graphene oxide[J].Plating & Finishing,2024,(5):11-19.[doi:10.3969/j.issn.1001-3849.2024.05.002]
氧化石墨烯强化银镀层的耐蚀性和耐磨性研究
- Title:
- Study on corrosion resistance and wear resistance of silver coatings strengthened by graphene oxide
- Keywords:
- silver composite coating ; graphene oxide ; electroplating ; wear resistance ; corrosion
- 分类号:
- TQ153.2
- 文献标志码:
- A
- 摘要:
- 为满足电连接器在服役过程中对导电银镀层的耐蚀性和耐磨性的需求,本文基于 5 , 5 - 二甲基乙内酰脲作为主络合剂的无氰镀银溶液,通过添加氧化石墨烯纳米片,采用直流电沉积在铜基材表面制备了银 - 氧化石墨烯复合镀层。采用光学显微镜、扫描电子显微镜、能谱仪、 X 射线衍射仪对镀层表面形貌、成分和晶体结构进行了表征,并通过电化学实验和摩擦磨损试验对复合镀层的耐蚀性和耐磨性进行了测试。结果表明,氧化石墨烯的掺入改变了银的晶体生长方向,并细化了组织,提高了银镀层的硬度、耐蚀性与耐磨性。
- Abstract:
- : To meet the need for corrosion and wear resistance of conductive silver coatings for electrical connectors during service , the silver-graphene oxide composite coating on the copper substrate surfaces was prepared by using the direct current electrodeposition from a cyanide free silver graphene oxide composite plating solution with 5 , 5-dimethylhydantoin as the main complexing agent in this paper. The surface morphology , composition , and crystal structure of the composite coating were characterized using the optical microscope , scanning electron microscope , energy spectrometer , and X-ray diffractometer . The corrosion resistance and wear resistance of the composite coating were evaluated by the electrochemical experiments and wear tests. The results show that the addition of graphene oxide changes the crystal growth direction of silver , refines the microstructure , and improves the hardness , corrosion resistance and wear resistance of the silver coating.
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备注/Memo
收稿日期: 2023-09-11 修回日期: 2024-01-18 作者简介: 刘凯( 1998 -),男,硕士在读, email : 31571355@qq.com * 通信作者: 沈喜训( 1977 -),男,博士,副教授, email : shenxixun@shiep.edu.cn 基金项目: 国家自然科学基金面上项目( 21972090 ),上海市科委项目( 19DZ2271100 )