Reversible solidification of hard sphere-like dispersions due to colloidal crystallization

When subjected to low stresses, an abrupt cessation of flow (solidification) is observed in concentrated dispersions of hard sphere-like colloidal particles. This is due to the formation of colloidal crystals, as evidenced by opalescence when illuminated by white light. The elastic polycrystalline s...

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Bibliographic Details
Published inLangmuir Vol. 9; no. 1; pp. 12 - 15
Main Authors RODRIGUEZ, B. E, WOLFE, M. S, KALER, E. W
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 1993
Subjects
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Solution and gel properties
Creep limit
Shear viscosity
Crystallization
Dispersed state
Styrene polymer
Hard sphere model
Freeze
Colloid particle
Rheological properties
Solidification
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Summary:When subjected to low stresses, an abrupt cessation of flow (solidification) is observed in concentrated dispersions of hard sphere-like colloidal particles. This is due to the formation of colloidal crystals, as evidenced by opalescence when illuminated by white light. The elastic polycrystalline structure is stable if unperturbed but can be destroyed by exceeding a yield stress.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0743-7463
1520-5827
DOI:10.1021/la00025a004