Scattering from highly packed disordered colloids
نویسندگان
چکیده
منابع مشابه
Scattering from highly packed disordered colloids.
We discuss the measurable structure factor S(M)(q) of highly concentrated nanoemulsions in a glassy amorphous state. Neutron scattering data show that the primary structure factor peak decreases with increasing concentration and eventually drops below unity. We find very good quantitative agreement between the experimental S(M)(q) and analytical predictions for a polydisperse hard sphere fluid....
متن کاملTransport of rodlike colloids through packed beds.
The effect of colloid shape on filtration rates in porous media was examined by constructing particles with different aspect ratios and measuring their retention in packed beds. Spherical polystyrene latex microspheres (1.0-microm diameter) were heated, stretched to the desired aspect ratio (2:1 and 3:1, with a 1:1 control), and quickly cooled. These particles were injected into minicolumns con...
متن کاملFracturing highly disordered materials.
We investigate the role of disorder on the fracturing process of heterogeneous materials by means of a two-dimensional fuse network model. Our results in the extreme disorder limit reveal that the backbone of the fracture at collapse, namely, the subset of the largest fracture that effectively halts the global current, has a fractal dimension of 1.22 ± 0.01. This exponent value is compatible wi...
متن کاملEvanescent light scattering with magnetic colloids
We measure magnetic interactions between paramagnetic colloidal beads and an external magnetic field by using total internal reflection microscopy TIRM . Our results demonstrate that TIRM can be applied to absorptive paramagnetic probe particles and thus extends the range of interaction types which can be addressed with this method. With our setup, we can detect magnetic forces on single superp...
متن کاملTheory of diffusive light scattering from disordered materials
1 — (cosO) Abstract. It is suggested that the measurement of the angular distribution of light transmitted through a thick slab of diffusively scattering material may provide information about the nature of the local scattering events. Monte Carlo simulations indicate that the angular distribution depends on eie* where and e* are the true and transport mean free paths, respectively, and this de...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2009
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/21/33/332102