CAS OpenIR
Wettability and infiltration of Si drop on silica substrate containing alpha-Si3N4 coating: Influence of oxygen content in alpha-Si3N4 coating
Wang, Qinghu1; He, Gang2; Deng, Shuxiang2,3; Liu, Jun1; Li, Jiangtao2; Li, Yawei1; Pan, Liping1; Liu, Guanghua4; Li, Xiaoyu5; Li, Jianqiang5
2020-06-01
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume46Issue:8Pages:12695-12704
AbstractThe 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.
KeywordOxygen content Silicon alpha-Si(3)N(4 )coating Wettability Infiltration
DOI10.1016/j.ceramint.2020.02.036
Language英语
WOS KeywordWETTING BEHAVIOR ; CHEMICAL-STABILITY ; NITRIDE ; SI3N4 ; CRYSTALLIZATION ; OXIDATION ; INTERFACE ; MECHANISM ; ADHESION ; EQUATION
Funding ProjectNational 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 Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
Funding OrganizationNational 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
WOS IDWOS:000528483600145
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/40406
Collection中国科学院过程工程研究所
Corresponding AuthorHe, Gang; Li, Jiangtao
Affiliation1.Wuhan Univ Sci & Technol, Natl Prov Joint Engn Res Ctr High Temp Mat & Lini, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
2.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
5.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
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.
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