Enhanced Mechanical and Electrochemical Performances of Silica-Based Coatings Obtained by Electrophoretic Deposition

doi:10.1021/acsami.9b07585

CORC > 金属研究所 > 中国科学院金属研究所

	Enhanced Mechanical and Electrochemical Performances of Silica-Based Coatings Obtained by Electrophoretic Deposition
	Zeng, Qi 1,2,3; Wan, Wenlu 1; Chen, Liqiong 1
刊名	ACS APPLIED MATERIALS & INTERFACES
	2019-07-10
卷号	11 期号:27 页码:24308-24317
关键词	silica sol electrophoretic deposition (EPD) sintering corrosion wear resistance
ISSN号	1944-8244
DOI	10.1021/acsami.9b07585
通讯作者	Zeng, Qi(qi.zeng@siat.ac.cn)
英文摘要	To solve the existing problems of silicon dioxide (SiO2) (a) coating fabricated by the sol-gel method, such as complicated process, long production cycle, uncontrollable quality, etc., an improved electrophoretic deposition (EPD) combined with the sintering process was proposed to prepare SiO2 coating on a dark nickel (Ni)-coated Q235 steel substrate. Silica sol was prepared by basic catalysis, containing silica of similar to 130 g L-1 with viscosities below 4 mPa s. Silica sol powder was characterized by the differential thermal analysis, Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy. EPD was applied to prepare SiO2 coating on the Ni adhesive layer, followed by the sintering process to improve the compactness. In addition, the effects of EPD and sintering parameters were also evaluated. Potentiodynamic polarization and electrochemical impedance spectra were utilized to assess the corrosion behavior of the coating. The results showed that the EPD coating demonstrated excellent wear resistance when deposited at 15 V for 40 s and sintered at 400 degrees C for 45 min, exhibiting similar to 6 mu m thickness and a compact morphology. It also showed superior corrosion resistance with i(corr) of 1.02 x 10(-7) A cm(-2), which was 2 orders of magnitude lower than that of dip-coating. Combining the EPD and sintering processes could shorten the fabrication period of SiO2 inorganic coating and also improve the mechanical and corrosion properties, providing guidance for inorganic ceramic fabrication and showing potential for practical applications.
资助项目	Shenzhen Science and Technology Research Program[JCYJ20170818154035069] ; Shenzhen Science and Technology Research Program[JCYJ20170818160050656] ; Key Laboratory of Health Informatics Program of Chinese Academy of Sciences[2011DP173015]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000475532200054
资助机构	Shenzhen Science and Technology Research Program ; Key Laboratory of Health Informatics Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134734]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zeng, Qi
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China 3.Chinese Acad Sci, Key Lab Hlth Informat, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Qi,Wan, Wenlu,Chen, Liqiong. Enhanced Mechanical and Electrochemical Performances of Silica-Based Coatings Obtained by Electrophoretic Deposition[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(27):24308-24317.
APA	Zeng, Qi,Wan, Wenlu,&Chen, Liqiong.(2019).Enhanced Mechanical and Electrochemical Performances of Silica-Based Coatings Obtained by Electrophoretic Deposition.ACS APPLIED MATERIALS & INTERFACES,11(27),24308-24317.
MLA	Zeng, Qi,et al."Enhanced Mechanical and Electrochemical Performances of Silica-Based Coatings Obtained by Electrophoretic Deposition".ACS APPLIED MATERIALS & INTERFACES 11.27(2019):24308-24317.