electrorheological fluids
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Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 311
Author(s):  
Yudong Wang ◽  
Jinhua Yuan ◽  
Xiaopeng Zhao ◽  
Jianbo Yin

Due to their unique anisotropic morphology and properties, graphene-based materials have received extensive attention in the field of smart materials. Recent studies show that graphene-based materials have potential application as a dispersed phase to develop high-performance electrorheological (ER) fluids, a kind of smart suspension whose viscosity and viscoelastic properties can be adjusted by external electric fields. However, pure graphene is not suitable for use as the dispersed phase of ER fluids due to the electric short circuit caused by its high electrical conductivity under electric fields. However, graphene oxide (GO) and graphene-based composites are suitable for use as the dispersed phase of ER fluids and show significantly enhanced property. In this review, we look critically at the latest developments of ER fluids based on GO and graphene-based composites, including their preparation, electrically tunable ER property, and dispersed stability. The mechanism behind enhanced ER property is discussed according to dielectric spectrum analysis. Finally, we also propose the remaining challenges and possible developments for the future outlook in this field.


2021 ◽  
pp. 1-20
Author(s):  
Ivan Cinelli ◽  
Gianluca Ferrari ◽  
Marco Squassina

We obtain some nonlocal characterizations for a class of variable exponent Sobolev spaces arising in nonlinear elasticity, in the theory of electrorheological fluids as well as in image processing for the regions where the variable exponent p ( x ) reaches the value 1.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shapour Heidarkhani ◽  
Shahin Moradi ◽  
Mustafa Avci

Abstract Differential equations with variable exponent arise from the nonlinear elasticity theory and the theory of electrorheological fluids. We study the existence of at least three weak solutions for the nonlocal elliptic problems driven by p ⁢ ( x ) p(x) -biharmonic operator. Our technical approach is based on variational methods. Some applications illustrate the obtained results. We also provide an example in order to illustrate our main abstract results. We extend and improve some recent results.


Author(s):  
Nikita M. Kuznetsov ◽  
Yuriy D. Zagoskin ◽  
Artem V. Bakirov ◽  
Artem Yu. Vdovichenko ◽  
Sergey N. Malakhov ◽  
...  

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