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Shear thickening behavior in dense repulsive and attractive suspensions of hard spheres
https://oist.repo.nii.ac.jp/records/2225
https://oist.repo.nii.ac.jp/records/2225dd7db611-1dc4-4f39-90b3-98c32ff0a1d7
名前 / ファイル | ライセンス | アクション |
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Rathee-Shear thickening behavior in dense repu (4.8 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-09-22 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Shear thickening behavior in dense repulsive and attractive suspensions of hard spheres | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | YIELD-STRESS | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | COLLOIDAL | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | GELS | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | PARTICLE-SIZE | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | STEADY | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | SHEAR | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | RHEOLOGY | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | MICROSTRUCTURE | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | AGGREGATION | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | TRANSITION | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | DILATANCY | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | DYNAMICS | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Rathee, Vikram
× Rathee, Vikram× Monti, Alessandro× Rosti, Marco E.× Shen, Amy Q. |
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書誌情報 |
en : Soft Matter 巻 17, 号 35, p. 8047-8058, 発行日 2021-08-16 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Shear thickening in stable dense colloidal suspensions is a reversible phenomenon and no hysteresis is observed in the flow curve measurements. However, a reduction in the stability of colloids promotes particle aggregation and introduces a time dependent rheological response. In this work, by using a model colloidal system of hard spherical silica particles (average diameter of 415 nm) with varying particle volume fractions 0.2 ≤ ϕ ≤ 0.56, we study the effect of particle stability on the hysteresis of the shear thickening behavior of these suspensions. The particle stability is manipulated by adding a simple monovalent salt (sodium chloride) in the silica suspension with varying concentrations α ∈ [0,0.5] M. For repulsive and weakly attractive suspensions, the flow behavior is history independent and the shear thickening behavior does not exhibit hysteresis. However, significant hysteresis is observed in rheological measurements for strongly attractive suspensions, with shear history playing a critical role due to the dynamic nature of particle clusters, resulting in time dependent hysteresis behavior. By performing numerical simulations, we find that this hysteresis behavior arises due to the competition among shear, electrostatic repulsive, van der Waals attractive, and frictional contact forces. The critical shear stress (i.e., the onset of shear thickening) decreases with increasing salt concentrations, which can be captured by a scaling relationship based on the force balance between particle–particle contact force and electrostatic repulsive force. Our combined experimental and simulation results imply the formation of particle contacts in our sheared suspensions. | |||||
出版者 | ||||||
出版者 | Royal Society of Chemistry | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1744-683X | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1744-6848 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/34525164 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1039/D1SM00971K | |||||
権利 | ||||||
権利情報 | © 2021 The Author(s) | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://pubs.rsc.org/en/Content/ArticleLanding/2021/SM/D1SM00971K | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |