منابع مشابه
Periodic average structures of colloidal quasicrystals.
We experimentally study the phase behaviour of a charge-stabilized two-dimensional colloidal monolayer which is subjected to a one-dimensional quasiperiodic substrate potential. Upon increasing the laser intensity, we observe a transition from a periodic to a quasiperiodic state. It proceeds via the formation of an intermediate periodic average structure (PAS) which is related to the quasiperio...
متن کاملColloidal quasicrystals with 12-fold and 18-fold diffraction symmetry.
Micelles are the simplest example of self-assembly found in nature. As many other colloids, they can self-assemble in aqueous solution to form ordered periodic structures. These structures so far all exhibited classical crystallographic symmetries. Here we report that micelles in solution can self-assemble into quasicrystalline phases. We observe phases with 12-fold and 18-fold diffraction symm...
متن کاملStability of quasicrystals composed of soft isotropic particles
Quasicrystals whose building blocks are of mesoscopic rather than atomic scale have recently been discovered in several soft-matter systems. Contrary to metallurgic quasicrystals whose source of stability remains a question of great debate to this day, we argue that the stability of certain soft-matter quasicrystals can be directly explained by examining a coarse-grained free energy for a syste...
متن کاملEffect of Milling Process on Colloidal Stability, Color and Rheological Properties of Pistachio Paste
Pistachio paste is produced from ground roasted kernel. This study focused on the influence of the milling process on colloidal stability, rheological behavior and color of pistachio paste. The colloidal stability of pistachio paste samples increased with a reduction of particle size from 31.4 to 15.10µm. The Herschel-Bulkley model was found to be the best model to describe the flow behavior of...
متن کاملOn the stability of polydisperse colloidal crystals
2014 The recently developed density functional theory of freezing is applied to an investigation of the mechanical and thermodynamic stability of polydisperse colloidal crystals. The colloidal particles are modelled by hard spheres with a continuous distribution p(03C3) of additive diameters. It is shown that such solid solutions cease to be stable beyond a critical degree of polydispersity, wh...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1998
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.81.469