Influence mechanism of added low-melting glass powder on the properties of high-temperature organic composite coatings

doi:10.1016/j.ceramint.2024.09.430

IMR OpenIR

	Influence mechanism of added low-melting glass powder on the properties of high-temperature organic composite coatings
	Zhao, Tongjun 1,2; Yang, Shasha 1; Chen, Zehao 1; Du, Yao 2; Wang, Jinlong 1; Chen, Minghui 1; Zhu, Shenglong 2; Wang, Fuhui 1
通讯作者	Wang, Jinlong(Wangjinlong@mail.neu.edu.cn)
	2024-12-01
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	50 期号:23 页码:50834-50845
摘要	Two formulations of high-temperature organic composite coatings containing Al flakes, nano-TiO2 were designed and low-melting glass (LMG) powder was added to the second for comparison. The properties of two coatings before and after the heat exposure tests were investigated. At room temperature, the large particles of LMG powder shortened the diffusion path of corrosive medium and had low interface binding strength with Al flakes, which has a negative effect on the barrier properties and strength of the as-prepared coating. After exposed to 600 degrees C for 300 h, the binder-silicone-modified acrylic resin-decomposed into silica, releasing gaseous products and generating a large amount of cavities inside the coating. Barrier properties and strength of the coating without added LMG powder severely deteriorated. At high temperatures, LMG in the viscous flow state infiltrated into the surrounding cavities by capillary action, forming a glass network and leaving in-situ holes. These holes deteriorated the barrier properties of the coating. The glass network filled in the cavities increased the coating strength and had a barrier effect on the diffusion of corrosive medium.
关键词	Low-melting glass powder Secondary film formation Capillary action Barrier properties Strength
资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Ministry of Industry and Information Technol-ogy Project
DOI	10.1016/j.ceramint.2024.09.430
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51671053] ; National Natural Science Foundation of China[51801021] ; Fundamental Research Funds for the Central Universities[N2302007] ; Ministry of Industry and Information Technol-ogy Project[MJ-2017-J-99]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001360516800001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：1[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/321006/191799
专题	中国科学院金属研究所
通讯作者	Wang, Jinlong
作者单位	1.Northeastern Univ, Corros & Protect Ctr, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Tongjun,Yang, Shasha,Chen, Zehao,et al. Influence mechanism of added low-melting glass powder on the properties of high-temperature organic composite coatings[J]. CERAMICS INTERNATIONAL,2024,50(23):50834-50845.
APA	Zhao, Tongjun.,Yang, Shasha.,Chen, Zehao.,Du, Yao.,Wang, Jinlong.,...&Wang, Fuhui.(2024).Influence mechanism of added low-melting glass powder on the properties of high-temperature organic composite coatings.CERAMICS INTERNATIONAL,50(23),50834-50845.
MLA	Zhao, Tongjun,et al."Influence mechanism of added low-melting glass powder on the properties of high-temperature organic composite coatings".CERAMICS INTERNATIONAL 50.23(2024):50834-50845.