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Title: Fracture of colloidal single-crystal films fabricated by controlled vertical drying deposition
Author: Cao H(曹鹤); Lan D(蓝鼎); Wang YR(王育人); Volinsky AA; Duan L(段俐); Jiang H
Source: Physical Review E
Issued Date: 2010
Volume: 82, Issue:3, Pages:31602
Abstract: Controlled vertical drying deposition method was used to make high-quality single crystal close-packed colloidal films formed of different radii polystyrene latex spheres on glass substrates coming from a low concentration water suspension (0.1% volume fraction). Regardless of the spheres radii the film thickness was about 6.3 microns. However, cracks destroyed the crystalline film structure during the colloidal film growth. The effect of particle radius (85-215 nm range) on film cracking was systematically studied using in situ optical fracture monitoring. Primary parallel cracks run along the vertical growth direction, later followed by secondary branched cracks in-between the primary cracks due to residual water evaporation. Quantitative theoretical relationship between the cracks spacing and particles radius was derived and shows good agreement with experimental observations. Normalized cracks spacing is related to a reciprocal ratio of the dimensionless particle radius.
Keyword: Fine Particles ; Crack Patterns ; Forces ; Dispersions ; Suspension ; Contact ; Latexes ; Model ; Gaps
Language: 英语
Indexed Type: SCI
Corresponding Author: Wang YR
Correspondent Email: wangyr@imech.ac.cn
DOI: 10.1103/PhysRevE.82.031602
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Physics, Fluids & Plasmas ; Physics, Mathematical
WOS Subject Extended: Physics
WOS Keyword Plus: FINE PARTICLES ; CRACK PATTERNS ; FORCES ; DISPERSIONS ; SUSPENSION ; CONTACT ; LATEXES ; MODEL ; GAPS
WOS ID: WOS:000281488400004
ISSN: 1539-3755
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/43635
Appears in Collections:国家微重力实验室_期刊论文

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