Wettability and infiltration of Si drop on silica substrate containing alpha-Si3N4 coating: Influence of oxygen content in alpha-Si3N4 coating

doi:10.1016/j.ceramint.2020.02.036

	Wettability and infiltration of Si drop on silica substrate containing alpha-Si3N4 coating: Influence of oxygen content in alpha-Si3N4 coating
	Wang, Qinghu 3; He, Gang 4; Deng, Shuxiang 1,4; Liu, Jun 3; Li, Jiangtao 4; Li, Yawei 3; Pan, Liping 3; Liu, Guanghua 5; Li, Xiaoyu 2; Li, Jianqiang 2
刊名	CERAMICS INTERNATIONAL
	2020-06-01
卷号	46 期号:8 页码:12695-12704
关键词	Oxygen content Silicon alpha-Si(3)N(4 )coating Wettability Infiltration
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2020.02.036
英文摘要	The preparation of solar grade silicon (Si) is popularly carried out in silica (SiO2) crucible containing porous alpha-Si3N4 coating, in which poorly wetting SiO(2 )film around alpha-Si3N4 particles act as barrier for Si infiltration. The present investigation studies the influence of oxygen (O) content in coating on wettability and infiltration for Si/alpha-Si3N4/SiO2 ternary system. The amorphous SiO2 film surrounding Si3N4 particles is firstly synthesized by preoxidizing coating in air, and the O content is controlled by adjusting pre-oxidizing temperature and holding time. In this work, dynamic wetting behavior of Si drop on coating containing various content of O is investigated using the sessile drop method. Meanwhile, via microstructural analysis, infiltration under the drop and infiltration beyond the drop (including infiltration on coating surface and under coating surface) are distinguished on coatings with different O content. Finally, wettability transformation (from wetting to non-wetting) is analyzed; mechanism of infiltration resistance for O in coating is interpreted by analytical model.
资助项目	National Key Research and Development Program of China[2017YFB0310303] ; National Natural Science Foundation of China[51572268] ; National Natural Science Foundation of China[51702240] ; National Natural Science Foundation of China[51702331] ; National Natural Science Foundation of China[51674232] ; key Program for Henan Joint Funds of the National Nature Science Foundation of China[U1904217] ; Special Project of Central Government for local Science and Technology Development of Hubei Province[2019ZYYD003] ; Special Project of Central Government for local Science and Technology Development of Hubei Province[2019ZYYD076]
WOS关键词	WETTING BEHAVIOR ; CHEMICAL-STABILITY ; NITRIDE ; SI3N4 ; CRYSTALLIZATION ; OXIDATION ; INTERFACE ; MECHANISM ; ADHESION ; EQUATION
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000528483600145
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; key Program for Henan Joint Funds of the National Nature Science Foundation of China ; Special Project of Central Government for local Science and Technology Development of Hubei Province
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/40405]
专题	中国科学院过程工程研究所
通讯作者	He, Gang; Li, Jiangtao
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Wuhan Univ Sci & Technol, Natl Prov Joint Engn Res Ctr High Temp Mat & Lini, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China 4.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China 5.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qinghu,He, Gang,Deng, Shuxiang,et al. Wettability and infiltration of Si drop on silica substrate containing alpha-Si3N4 coating: Influence of oxygen content in alpha-Si3N4 coating[J]. CERAMICS INTERNATIONAL,2020,46(8):12695-12704.
APA	Wang, Qinghu.,He, Gang.,Deng, Shuxiang.,Liu, Jun.,Li, Jiangtao.,...&Li, Jianqiang.(2020).Wettability and infiltration of Si drop on silica substrate containing alpha-Si3N4 coating: Influence of oxygen content in alpha-Si3N4 coating.CERAMICS INTERNATIONAL,46(8),12695-12704.
MLA	Wang, Qinghu,et al."Wettability and infiltration of Si drop on silica substrate containing alpha-Si3N4 coating: Influence of oxygen content in alpha-Si3N4 coating".CERAMICS INTERNATIONAL 46.8(2020):12695-12704.