Results 31 to 40 of about 106,977 (306)

From colloidal dispersions to colloidal pastesthrough solid–liquid separation processes [PDF]

open access: yes, 2005
Solid–liquid separation is an operation that starts with a dispersion of solid particles in a liquid and removes some of the liquid from the particles, producing a concentrated solid paste and a clean liquid phase.
Botet, Robert   +6 more
core   +6 more sources

Drag on particles in a nematic suspension by a moving nematic-isotropic interface [PDF]

open access: yes, 2002
We report the first clear demonstration of drag on colloidal particles by a moving nematic-isotropic interface. The balance of forces explains our observation of periodic, strip-like structures that are produced by the movement of these ...
Anatoliy Glushchenko   +18 more
core   +2 more sources

Colloidal chemistry with patchy silica nanoparticles [PDF]

open access: yesBeilstein Journal of Nanotechnology, 2018
We report a new route to synthesize clusters, or so-called colloidal molecules (CMs), which mimic the symmetry of molecular structures made of one central atom. We couple site-specifically functionalized patchy nanoparticles, i.e., valence-endowed colloidal atoms (CAs), with complementary nanospheres through amide bonds.
Pierre-Etienne Rouet   +4 more
openaire   +3 more sources

Anisotropic deformation of colloidal particles under 4 MeV Cu ions irradiation

open access: yesMaterials Research Express, 2022
Anisotropic deformation of colloidal particles was investigated under ion irradiation with 4 MeV Cu ions. In this study, 0.5 μ m-diameter colloidal silica particles, 0.5 μ m-diameter Au-silica core–shell particles, and 15 nm-diameter Au colloids ...
E A Dawi, E Mustafa, T Siahaan
doaj   +1 more source

Dry impregnation in fluidized bed: Drying and calcination effect on nanoparticles dispersion and location in a porous support [PDF]

open access: yes, 2008
The synthesis of metal nanoparticles dispersed inside the grains of a porous inorganic support was carried out by ‘‘dry impregnation’’ in a fluidized bed.
B. Chaudret   +8 more
core   +3 more sources

Stability of colloidal silica

open access: yesJournal of Colloid and Interface Science, 1969
Abstract The stabilities of the silica hydrosols Ludox HS and Ludox AM have been studied as a function of pH in the presence of various concentrations of several hydrolyzable electrolytes. “Log electrolyte concentration-pH” domains are given for the HS sol in Al(NO3)3 and Al2(SO4)3 solutions and for the AM sol in Al(NO3)3 and La(NO3)3 solutions.
Lawrence H Allen, Egon Matijević
openaire   +2 more sources

Obstructed Diffusion in Silica Colloidal Crystals [PDF]

open access: yesThe Journal of Physical Chemistry A, 2013
The hindered diffusion in silica colloidal crystals was studied experimentally, both by fluorescence recovery after photobleaching and by measurement of ionic conductivity. Particle size was varied to include 120, 220, 470, and 1300 nm, and the porosities were determined by flow measurements.
Benjamin J, Rogers, Mary J, Wirth
openaire   +2 more sources

A ceramic composite thermal insulation [PDF]

open access: yes, 1967
Ceramic composite thermal insulation comprised of alumina-silica fibers, pigmentary potassium titanate, and asbestos fibers, bonded with a colloidal silica sol has improved insulating capabilities to both radiant and convective heat.

core   +1 more source

Magnetic Nanoparticles for Power Absorption: optimizing size, shape and magnetic properties [PDF]

open access: yes, 2009
We present a study on the magnetic properties of naked and silica-coated Fe3O4 nanoparticles with sizes between 5 and 110 nm. Their efficiency as heating agents was assessed through specific power absorption (SPA) measurements as a function of particle ...
C. Marquina   +37 more
core   +3 more sources

Optimizing Post Friction Stir Welding Heat Treatment in Dissimilar Friction Stir Welded 6061/AlSi10MgMn Joints for Electrical Vehicle Battery Housing

open access: yesAdvanced Engineering Materials, EarlyView.
Microstructural evolution and hardness optimization along the cross‐section of friction stir welded AA6061/AlSi10MgMn joints, for electric vehicle battery housings, were investigated. Postweld aging between 170°C and 220°C enhances hardness uniformity within the nugget zone.
Emanuele Ghio, Emanuela Cerri
wiley   +1 more source

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