Direct measurement of the nanobubble-induced weak depletion attraction between a spherical particle and a flat surface in an aqueous solution

Soft Matter ◽  
2008 ◽  
Vol 4 (5) ◽  
pp. 968 ◽  
Author(s):  
Fan Jin ◽  
XiangJun Gong ◽  
Jing Ye ◽  
To Ngai
Keyword(s):  
Aqueous Solution ◽  
Spherical Particle ◽  
Direct Measurement ◽  
Flat Surface

Thermal Anomaly in the Temperature Dependence of the Energy–Volume Coefficient of Aqueous KCl Solutions

1973 ◽  
Vol 51 (12) ◽  
pp. 1885-1888 ◽  
Author(s):  
Ikchoon Lee ◽  
J. B. Hyne
Keyword(s):  
Aqueous Solution ◽  
Temperature Dependence ◽  
Potassium Chloride ◽  
Direct Measurement ◽  
Pure Water ◽  
Pressure Coefficient ◽  
Thermal Anomaly ◽  
Thermal Pressure ◽  
Temperature Range ◽  
Volume Coefficient

The temperature dependence of the energy–volume coefficient of pure water and of aqueous potassium chloride solutions as a function of concentration over the temperature range 10–50 °C has been determined by direct measurement of constant volume thermal–pressure coefficient. The results show that a thermal anomaly exists in the energy–volume coefficient of aqueous solution in the temperature range 30–40 °C and becomes more pronounced as the concentration of solute is increased.

Direct Measurement of the Binding Force between Microfabricated Particles and a Planar Surface in Aqueous Solution by Force-Sensing Piezoresistive Cantilevers

Langmuir ◽  
2005 ◽  
Vol 21 (24) ◽  
pp. 11251-11261 ◽  
Author(s):  
Hiroaki Onoe ◽  
Murat Gel ◽  
Kazunori Hoshino ◽  
Kiyoshi Matsumoto ◽  
Isao Shimoyama
Keyword(s):  
Aqueous Solution ◽  
Direct Measurement ◽  
Force Sensing ◽  
Planar Surface ◽  
Binding Force ◽  
Piezoresistive Cantilevers

Direct measurement of small spherical particle rotation driven by the acoustic viscous torque

2020 ◽  
Vol 148 (4) ◽  
pp. 2709-2709
Author(s):  
Christoph Goering ◽  
Andreas Lamprecht ◽  
Iwan A. Schaap ◽  
Jürg Dual
Keyword(s):  
Spherical Particle ◽  
Direct Measurement ◽  
Particle Rotation ◽  
Small Spherical Particle ◽  
Viscous Torque

scholarly journals Drag Coefficient of a Spherical Particle Attached on the Flat Surface

2011 ◽  
Vol 11 (5) ◽  
pp. 482-486 ◽  
Author(s):  
Chun-Nan Liu ◽  
Chih-Liang Chien ◽  
Chu-Chun Lo ◽  
Guan-Yu Lin ◽  
Sheng-Chieh Chen ◽  
...  
Keyword(s):  
Drag Coefficient ◽  
Spherical Particle ◽  
Flat Surface

The Temperature Distribution Around a Spherical Particle on a Planar Surface

1990 ◽  
Vol 112 (3) ◽  
pp. 561-566 ◽  
Author(s):  
J. Fransaer ◽  
M. De Graef ◽  
J. Roos
Keyword(s):  
Temperature Distribution ◽  
Boundary Value Problems ◽  
Spherical Particle ◽  
Stream Function ◽  
Potential Field ◽  
Flat Surface ◽  
Series Expansions ◽  
Planar Surface ◽  
The Third ◽  
Integral Solutions

The solutions for three related boundary value problems in tangent sphere coordinates are presented; two of these problems involve a conducting and a nonconducting sphere on a conducting flat surface when the field at infinity is linear. The third problem describes the potential field around a conducting sphere on an insulating surface where the field at infinity vanishes. Depending on the nature of the problem, either the Laplace equation or the Stokes stream function formalism is used. The integral solutions are rewritten as series expansions, which are numerically easier to evaluate.

scholarly journals The FHH Multilayer Expression: Effects of Particle Size

1986 ◽  
Vol 3 (3) ◽  
pp. 123-140 ◽  
Author(s):  
B. D. Adkins ◽  
P. J. Reucroft ◽  
B. H. Davis
Keyword(s):  
Particle Size ◽  
Surface Energy ◽  
Spherical Particle ◽  
Flat Surface ◽  
Experimental Results ◽  
High Coverage ◽  
Lennard Jones ◽  
Surface Areas ◽  
Primary Particles ◽  
Adsorption Data

Frenkel-Halsey-Hill (FHH) plots are presented using the adsorption data from eleven silicas with surface areas between 40 and 1200 m2 g−1. These materials consist of regular nonporous primary particles which have been approximated as monomodal size distributions of spheres. Two models (semi-infinite slab and spherical particle) were used to make the FHH plots. The results from these plots indicate that the FHH coefficient and exponent vary with particle size. A model is proposed for a particle having a featureless Lennard-Jones surface which predicts (a) that the actual variation is in the coefficient alone, which depends upon coverage as well as particle size, but (b) on a ‘spherical particle’ FHH plot, this variation will manifest itself as a particle size dependence of both coefficient and exponent. However, the model predicts that the exponent should decrease with particle size; experimental results show it to increase. The model also predicts that ‘flat surface’ FHH plots should be less linear than the ‘spherical particle’ plots, and should deviate downwards at high coverage, when in fact the ‘flat surface’ plots are more linear. Predictions obtained by recalculating the model in the absence of the surface energy term are in much better agreement with the experimental results, indicating that the surface energy correction is possibly excessive, e.g. if the particles were actually polyhedral instead of spherical.

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