6533b856fe1ef96bd12b2560
RESEARCH PRODUCT
Heterogeneous and homogeneous crystal nucleation in colloidal hard-sphere like microgels at low metastabilities
Markus FrankeHans Joachim SchöpeAchim Lederersubject
Materials scienceNucleationPhysics::OpticsCrystal growthGeneral ChemistryHard spheresCondensed Matter Physicslaw.inventionCrystalColloidCrystallographylawChemical physicsStatic light scatteringClassical nucleation theoryCrystallizationdescription
We studied the crystallization kinetics of the homogeneous bulk as well as of the heterogeneous wall crystallization in a colloidal hard sphere model system within the fluid crystal coexistence region. Using time resolved static light scattering and Bragg microscopy we determined several parameters characterizing the crystallization process (induction times, growth coefficients, nucleation rate densities,…). By performing further analysis according to classical nucleation theory we can show that wall crystallization is favored by a vanishing nucleation barrier height leading to the conclusion that a hard sphere crystal completely wets a structureless hard wall.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 | Soft Matter |