Electrical phenomena in a suspension of soft particles

Soft Matter ◽  
2012 ◽  
Vol 8 (13) ◽  
pp. 3511 ◽  
Author(s):  
Hiroyuki Ohshima
Keyword(s):  
Soft Particles

scholarly journals Soft Particles at Liquid Interfaces: From Molecular Particle Architecture to Collective Phase Behavior

Langmuir ◽  
2021 ◽  
Vol 37 (17) ◽  
pp. 5364-5375
Author(s):  
Simone Ciarella ◽  
Marcel Rey ◽  
Johannes Harrer ◽  
Nicolas Holstein ◽  
Maret Ickler ◽  
...  
Keyword(s):  
Phase Behavior ◽  
Liquid Interfaces ◽  
Soft Particles

Electrophoresis of soft particles with hydrophobic inner core grafted with pH‐regulated and highly charged polyelectrolyte layer

2021 ◽  
Author(s):  
Saurabh Kumar Maurya ◽  
Sankar Sarkar ◽  
Hemanta Kumar Mondal ◽  
H. Ohshima ◽  
Partha P. Gopmandal
Keyword(s):  
Inner Core ◽  
Polyelectrolyte Layer ◽  
Soft Particles

Effect of core hydrophobicity on the electrophoresis of pH-regulated soft particles

Soft Matter ◽  
2021 ◽  
Vol 17 (11) ◽  
pp. 3074-3084
Author(s):  
Bharti ◽  
Partha P. Gopmandal ◽  
R. K. Sinha ◽  
H. Ohshima
Keyword(s):  
Inner Core ◽  
Theoretical Study ◽  
Slip Length ◽  
Hydrodynamic Slip ◽  
Soft Particles

We propose a theoretical study on the electrophoresis of pH-regualted soft particles considering the effect of hydrodynamic slip length of the hydrophobic inner core.

FORC analysis of magnetically soft microparticles embedded in a polymeric elastic environment

2022 ◽  
Author(s):  
Dmitry Yu Borin ◽  
Mikhail V Vaganov
Keyword(s):  
Particle Concentration ◽  
Magnetic Hysteresis ◽  
Magnetic Response ◽  
Soft Matrix ◽  
First Order ◽  
Matrix Elasticity ◽  
Intrinsic Coercivity ◽  
The Matrix ◽  
Soft Particles ◽  
Elastomer Composites

Abstract First-order reversal curve (FORC) analysis allows one to investigate composite magnetic materials by decomposing the magnetic response of a whole sample into individual responses of the elementary objects comprising the sample. In this work, we apply this technique to analysing silicone elastomer composites reinforced with ferromagnetic microparticles possessing low intrinsic coercivity. Even though the material of such particles does not demonstrate significant magnetic hysteresis, the soft matrix of the elastomers allows for the translational mobility of the particles and enables their magnetomechanical hysteresis which renders into a wasp-waisted major magnetization loop of the whole sample. It is demonstrated that the FORC diagrams of the composites contain characteristic wing features arising from the collective hysteretic magnetization of the magnetically soft particles. The influence of the matrix elasticity and particle concentration on the shape of the wing feature is investigated, and an approach to interpreting experimental FORC diagrams of the magnetically soft magnetoactive elastomers is proposed. The experimental data are in qualitative agreement with the results of the simulation of the particle magnetization process obtained using a model comprised of two magnetically soft particles embedded in an elastic environment.

Electroless Nickel-Phosphorus Composite Coatings

2016 ◽  
Vol 6 (1) ◽  
pp. 14-50 ◽  
Author(s):  
Prasanna Gadhari ◽  
Prasanta Sahoo
Keyword(s):  
Corrosion Resistance ◽  
Tribological Properties ◽  
Composite Coatings ◽  
Electroless Nickel ◽  
Friction Behavior ◽  
Factors Affecting ◽  
Conductive Materials ◽  
Mechanical And Tribological Properties ◽  
Coating Methods ◽  
Soft Particles

Electroless nickel composite coatings possess excellent mechanical and tribological properties such as, hardness, wear and corrosion resistance. Composite coatings can easily be coated not only on electrically conductive materials but also on non-conductive materials like as fabrics, plastics, rubber, etc. This review emphasizes on the development of electroless nickel composite coatings by incorporating different types of hard/soft particles (micro/nano size) in the electroless Ni-P matrix to improve the mechanical and tribological properties of the coatings. The preparation of electroless bath for nickel-phosphorus composite coating, methods to incorporate hard and/or soft particles in the bath, factors affecting the particle incorporation in the coating and its effect on coating structure, hardness, wear resistance, friction behavior, corrosion resistance, and mechanical properties are discussed thoroughly.

Elastic particle deformation in rectangular channel flow as a measure of particle stiffness

Soft Matter ◽  
2018 ◽  
Vol 14 (2) ◽  
pp. 216-227 ◽  
Author(s):  
Margaret Y. Hwang ◽  
Seo Gyun Kim ◽  
Heon Sang Lee ◽  
Susan J. Muller
Keyword(s):  
Shear Modulus ◽  
Channel Flow ◽  
Rectangular Channel ◽  
Particle Deformation ◽  
Experimental Deformation ◽  
Soft Particles ◽  
Elastic Particle ◽  
Confined Channel

Experimental deformation of hydrogel soft particles in a confined channel is quantified and can be used to obtain shear modulus.

Electrokinetics of soft particles

2007 ◽  
Vol 285 (13) ◽  
pp. 1411-1421 ◽  
Author(s):  
Hiroyuki Ohshima
Keyword(s):  
Soft Particles

Magnetodynamics and Self-Organization in Strongly Non-Equilibrium Ferrosuspensions

2009 ◽  
Vol 152-153 ◽  
pp. 175-181
Author(s):  
Bronislav Kashevsky ◽  
Sergei Kashevsky ◽  
Igor Prokhorov
Keyword(s):  
Smart Materials ◽  
Materials Science ◽  
Magnetic Hysteresis ◽  
Experimental Studies ◽  
Rotating Magnetic Field ◽  
Self Organization ◽  
Linearly Polarized ◽  
Dilute Suspension ◽  
Soft Particles ◽  
Non Equilibrium

This paper presents computational and experimental studies of two phenomena occurring in magnetic suspensions under strongly non-equilibrium conditions created by high-frequency (in comparison with the inverse characteristic time of the particle mechanical motion) magnetic fields. First is the dynamic magnetic hysteresis in a dilute suspension of highly-coercive particles subjected to linearly polarized fields. Energy absorption by particles is of great interest for cancer treatment, chemical technology, biology and smart materials science. Second is related to polymer composite technologies and represents dissipative self-organization of a system of magnetically soft particles in a drying thin layer of polymer solution set under a rotating magnetic field

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