The Influence of Particle Size, Concentration of Electrorheological Fluid on the Properties and Morphology of ER

2010 ◽  
Vol 152-153 ◽  
pp. 1111-1114 ◽  
Author(s):  
Suo Kui Tan ◽  
Xiao Ping Song ◽  
Li Qiao ◽  
Hong Yan Guo ◽  
Song Ji ◽  
...  

By means of mechanical properties test and microstructure graph observation,the effect of core-shell Ni/TiO2 particles size, concentration on the properties and morphology of electrorheological fluid was emphatically studied, It is found that with concentration increasing the properties of electrorheological fluid can be improved, but there is a critical value, Urea content of Ni/TiO2 particles is 30%, in the same field with increasing concentration, particles chain of electrorheological fluid become strong,coarse and interweaved each other. The smaller of particle size, the higher of shear strength of electrorheological fluid.

2011 ◽  
Vol 211-212 ◽  
pp. 775-779 ◽  
Author(s):  
Suo Kui Tan ◽  
Xiao Ping Song ◽  
Qiao Li ◽  
Hong Yan Guo ◽  
Song Ji ◽  
...  

By means of mechanical properties test, the relationship among particle size,electric field,magnetic field ,electromagnetic field and shear ratio on the Ni/TiO2/Urea core-shell particles electrorheological fluid properties analyses. It is found that with increasing particle size, the property of electrorheological fluid decreased, and with increasing shear ratio the property of electrorheological fluid increased for same composition ER. At same time, the smaller of particle size, the higher of ER properties, but there is a critical value for shear ratio, the properties of ER is near value for same composition ER fluid. In magnetic field, the properties of ER showed a contrary result, the smaller of particle size, the lower of ER properties,and electromagnetic field make the properties increase.


2021 ◽  
Author(s):  
Rong Gui ◽  
Guicheng He

Abstract In this paper, the hydraulic sedimentary model was established to investigate the effects of dry beach slope on the sedimentary characteristics of tailings, and the sand column model was built to investigate the effects of seepage erosion on the physical and mechanical properties of sedimentary tailings under unsteady seepage.The results show that the slope of dry beach have a great effect on the sedimentary characteristics of tailings, the average particle size of tailings decreases along the slope of dry beach, and the larger the slope, the more obvious the stratification of the tailings. The migration of fine-grained tailings caused by seepage erosion increases the permeability of the tailings and reduces the shear strength of the tailings. After seepage erosion,the average particle size of 1#tailings sample, 2#tailings sample and 3#tailings sample increased by 6.4%, 12.0% and 2.4% respectively, the hydraulic conductivity of 1# tailings sample, 2# tailings sample and 3# tailings increased by 27.2%,17.9%, and 15.3% respectively after internal erosion, and the shear strength of 1#tailings sample, 2#tailings sample and 3#tailings sample tailings sample decreased by 20.9 %, 15.1% and 12.4% respectively.


Polymer ◽  
2007 ◽  
Vol 48 (5) ◽  
pp. 1212-1218 ◽  
Author(s):  
L.A. Pérez-Carrillo ◽  
M. Puca ◽  
M. Rabelero ◽  
K.E. Meza ◽  
J.E. Puig ◽  
...  

2012 ◽  
Vol 510 ◽  
pp. 594-598
Author(s):  
Suo Kui Tan ◽  
Xiao Ping Song ◽  
Li Qiao ◽  
Hong Yan Guo ◽  
Song Ji ◽  
...  

By means of mechanical properties test and microstructure observation,the relationship between mechanical properties ,microstructure graph of core-shell Ni/TiO2group particles concentration of EMR and different electric field, magnetic field or electric-magnetic field have been researched. It is found that with increasing of particles concentration, the properties are increased. But there is a critical range value, too high or too low particles concentrations are harmful to properties and microstructure. The best particles concentration of Ni/TiO2particles is about 30%. In the same field with increasing concentration, particles chain of electrorheological fluid under certain electric field become more strong,brawnier and interweaved each other.


2011 ◽  
Vol 214 ◽  
pp. 312-315
Author(s):  
Suo Kui Tan ◽  
Xiao Ping Song ◽  
Li Qiao ◽  
Hong Yan Guo ◽  
Song Ji ◽  
...  

By means of mechanical properties test,the relationship among shear ratio, concentration and electric field, magnetic field ,electromagnetic field on the Ni/TiO2 group electrorheological fluid properties have been analyzed. It is found that with increasing shear ratio,the property of electrorheological fluid increased for same composition ER, but there is a critical value. With increasing concentration,the property of electrorheological fluid increased for same shear ratio. Coupling electromagnetic field makes the properties improve.


2011 ◽  
Vol 687 ◽  
pp. 519-522
Author(s):  
Suo Kui Tan ◽  
Xiao Ping Song ◽  
Qiao Li ◽  
Hong Yan Guo ◽  
Song Ji ◽  
...  

In the present paper, mechanical properties test and morphology observation,the effect among electric field, magnetic field and electromagnetic field, shear ratio on the Ni/TiO2/Urea core-shell particles electrorheological fluid properties were studied. It is found that with increasing electric field, magnetic field and shear ratio in the same composition electrorheological fluid, the property of electrorheological fluid can be increased. However, there is a critical value for shear ratio. When shear ratio is larger than 20s-1, the property of ER is nearly certain value for same composition ER fluid. Electromagnetic field reciprocal effect can increase the properties of ER fluid, and make the particles chain become thicker and interweaved each other.


Alloy Digest ◽  
1962 ◽  
Vol 11 (3) ◽  

Abstract ALUMINUM 220 is a 10% magnesium-aluminum casting alloy having the highest combination of mechanical properties, corrosion resistance and machinability. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-112. Producer or source: Aluminum Company of America.


Alloy Digest ◽  
1978 ◽  
Vol 27 (12) ◽  

Abstract ALUMINUM 2011 is an age-hardenable aluminum-copper alloy to which lead and bismuth are added to make it a free-machining alloy. It has good mechanical properties and was designed primarily for the manufacture of screw-machine products. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-32. Producer or source: Various aluminum companies. Originally published October 1955, revised December 1978.


Alloy Digest ◽  
1957 ◽  
Vol 6 (7) ◽  

Abstract ALCAN 350 is a 10% magnesium-aluminum casting alloy having high mechanical properties, excellent machinability, and good corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-52. Producer or source: Aluminum Company of Canada Ltd.


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