Nondiffusional deformation of crystalline particles at a sphere-plane contact under the action of capillary forces

1977 ◽  
Vol 16 (2) ◽  
pp. 91-94 ◽  
Author(s):  
Yu. I. Boiko

Many of the distinctive and useful phenomena of soft matter come from its interaction with interfaces. Examples are the peeling of a strip of adhesive tape or the coating of a surface or the curling of a fibre via capillary forces or the electrically driven ow along a microchannel, or the collapse of a porous sponge. These interfacial phenomena are distinct from the intrinsic behaviour of a soft material like a gel or a microemulsion. Yet many forms of interfacial phenomena can be understood via common principles valid for many forms of soft matter. Our goal in organizing this school was to give students a grasp of these common principles and their many ramifications and possibilities. The school comprised over fifty 90-minute lectures over four weeks in July 2013. Four four-lecture courses by Howard Stone, Michael Cates, David Nelson, and L. Mahadevan served as an anchor for the program. A number of shorter courses and seminars rounded out the school.This volume presents lecture notes prepared by the speakers and submitted for publication after the school. The lectures are grouped under two main themes: Hydrodynamics and interfaces, and Soft matter.


Author(s):  
Nils Cwiekala ◽  
David A Hills

The state of stress present in an elastic half-plane contact problem, where one or both bodies is subject to remote tension has been investigated, both for conditions of full stick and partial slip. The state of stress present near the contact edges is studied for different loading scenarios in an asymptotic form. This is of practical relevance to the study of contacts experiencing fretting fatigue, and enables the environment in which cracks nucleate to be specified.


Langmuir ◽  
2012 ◽  
Vol 28 (21) ◽  
pp. 8266-8274 ◽  
Author(s):  
Izabela Jurewicz ◽  
Joseph L. Keddie ◽  
Alan B. Dalton

2014 ◽  
Vol 18 (4) ◽  
pp. 695-708 ◽  
Author(s):  
Massimo Mastrangeli ◽  
Gari Arutinov ◽  
Edsger C. P. Smits ◽  
Pierre Lambert

Author(s):  
Shriram Pillapakkam ◽  
N. A. Musunuri ◽  
P. Singh

In this paper, we present a technique for freezing monolayers of micron and sub-micron sized particles onto the surface of a flexible thin film after the self-assembly of a particle monolayer on fluid-liquid interfaces has been improved by the process we have developed where an electric field is applied in the direction normal to the interface. Particles smaller than about 10 microns do not self-assemble under the action of lateral capillary forces alone since capillary forces amongst them are small compared to Brownian forces. We have overcome this problem by applying an electric field in the direction normal to the interface which gives rise to dipoledipole and capillary forces which cause the particles to arrange in a triangular pattern. The technique involves assembling the monolayer on the interface between a UV-curable resin and another liquid by applying an electric field, and then curing the resin by applying UV light. The monolayer becomes embedded on the surface of the solidified resin film.


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