Differences among SiO 2, TiO 2, and Ti in the anti-foaming mechanism of chemically bonded silicate coatings

doi:10.1016/j.ceramint.2024.03.305

IMR OpenIR

	Differences among SiO 2, TiO 2, and Ti in the anti-foaming mechanism of chemically bonded silicate coatings
	Du, Yao 1,2; Chen, Zheng 1,2; Lu, Yiliang 3; Yang, Lanlan 4; Wang, Cheng 5; Zhu, Shenglong 2; Wang, Fuhui 6
通讯作者	Zhu, Shenglong(slzhu@imr.ac.cn)
	2024-06-15
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	50 期号:12 页码:21926-21936
摘要	Potassium silicate coating foams seriously at high temperature. SiO 2 , TiO 2 and Ti particles were added to solve this problem. Micro -morphologies, phase composition, mass change kinetics were analyzed, porosity and volatilizable water contents ( x0 ) of coatings were calculated to reveal the effects of adding SiO 2 , TiO 2 , and Ti particles on the foaming behavior of potassium silicate coatings at 500 degrees C. The higher the x0 , the more severe the foaming becomes. Results shows that addition of fillers improved the anti -foaming resistance due to volume occupier effect. Among them, SiO 2 particles did not alter x0 of the as -prepared coatings due to similar tetrahedral structure with silica, addition of TiO 2 particles increased x0 because titania can form more -Ti-OH groups than silica, Ti particles decrease x0 because dissolved Ti 4+ ions can decrease the number of the pending -Si-OH bonds. Combined with the volume expansion occurred due to the oxidation of Ti particles during heat treatment, potassium silicate coating modified by 30 wt% Ti exhibited the best anti -foaming performance with the lowest porosity, at 1.8%.
关键词	Fillers Potassium silicate coatings High temperature behavior Corrosion protection
DOI	10.1016/j.ceramint.2024.03.305
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001238479800005
出版者	ELSEVIER SCI LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186812
专题	中国科学院金属研究所
通讯作者	Zhu, Shenglong
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.State Grid Smart Grid Res Inst Co Ltd, State Key Lab Adv Power Transmiss Technol, Beijing 102209, Peoples R China 4.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Peoples R China 5.Jiangsu JITRI Rd Engn Technol & Equipment Res Inst, Xuzhou 220005, Peoples R China 6.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Du, Yao,Chen, Zheng,Lu, Yiliang,et al. Differences among SiO 2, TiO 2, and Ti in the anti-foaming mechanism of chemically bonded silicate coatings[J]. CERAMICS INTERNATIONAL,2024,50(12):21926-21936.
APA	Du, Yao.,Chen, Zheng.,Lu, Yiliang.,Yang, Lanlan.,Wang, Cheng.,...&Wang, Fuhui.(2024).Differences among SiO 2, TiO 2, and Ti in the anti-foaming mechanism of chemically bonded silicate coatings.CERAMICS INTERNATIONAL,50(12),21926-21936.
MLA	Du, Yao,et al."Differences among SiO 2, TiO 2, and Ti in the anti-foaming mechanism of chemically bonded silicate coatings".CERAMICS INTERNATIONAL 50.12(2024):21926-21936.