Stress- and strain-controlled measurements of interfacial shear viscosity and viscoelasticity at liquid/liquid and gas/liquid interfaces

2003 ◽  
Vol 74 (11) ◽  
pp. 4916-4924 ◽  
Author(s):  
Philipp Erni ◽  
Peter Fischer ◽  
Erich J. Windhab ◽  
Victor Kusnezov ◽  
Heiko Stettin ◽  
...  
Keyword(s):  
Shear Viscosity ◽  
Interfacial Shear ◽  
Stress And Strain ◽  
Liquid Interfaces ◽  
Interfacial Shear Viscosity

Interfacial shear viscosity at fluid-fluid interfaces

AIChE Journal ◽  
1971 ◽  
Vol 17 (6) ◽  
pp. 1287-1295 ◽  
Author(s):  
D. T. Wasan ◽  
Lalit Gupta ◽  
M. K. Vora
Keyword(s):  
Shear Viscosity ◽  
Interfacial Shear ◽  
Fluid Interfaces ◽  
Interfacial Shear Viscosity

Effect of Reaction of NaOH and Daqing Crude Oil on Oil/Water Interfacial Properties and Emulsion Stability

2013 ◽  
Vol 781-784 ◽  
pp. 2389-2395
Author(s):  
Jian Fang Jiang ◽  
Mei Qin Lin ◽  
Xue Qin Xu ◽  
Ming Yuan Li ◽  
Zhao Xia Dong
Keyword(s):  
Zeta Potential ◽  
Interfacial Tension ◽  
Crude Oil ◽  
Aqueous Phase ◽  
Shear Viscosity ◽  
Interfacial Shear ◽  
Oil Water ◽  
The Stability ◽  
Model Oil ◽  
Interfacial Shear Viscosity

The oil/water interfacial properties and the stability of the emulsion of ASP flooding in Daqing Oilfield were investigated with the measurement of interfacial tension, interfacial shear viscosity,Zeta potential and turbidity of the oil/water system. The results show that, after NaOH has reacted with Daqing crude oil for a long time, the interfacial tension between the aqueous phase and Daqing model oil decreases. The absolute value of the Zeta potential of the surface of oil droplets increases. The changes of the interfacial shear viscosity between the aqueous phase and the oil phase do not appear to be obvious. The stability of O/W emulsion formed by Daqing model oil and the aqueous phase is enhanced. After NaOH has reacted with crude oil for 1d, the interfacial tension between oil phase and simulated water, Zeta potential and the stability of the oil/water emulsion become higher than that of the emulsion without NaOH. However, after NaOH has reacted with crude oil for 10 d and 30 d, respectively, the interfacial tension between oil phase and simulated water, Zeta potential and the stability of the O/W emulsion are lower than that of the emulsion with the same reaction for 1d.

Mechanical Deformation Modeling of Diamond/Gaas Structures

1996 ◽  
Vol 445 ◽  
Author(s):  
Nickolaos Strifas ◽  
Aris Christou
Keyword(s):  
Finite Strain ◽  
Volume Fraction ◽  
Mechanical Deformation ◽  
Interfacial Shear ◽  
Stress And Strain ◽  
Uniform Temperature ◽  
Element Analysis ◽  
Strain Fields ◽  
Elastic Plastic ◽  
Plastic Analysis

AbstractIn this study a finite strain elastic-plastic finite element analysis is performed on diamond/GaAs structures. A series of models based upon the principal of superposition are proposed to investigate the mechanical deformation and thermal stress behavior of the diamond/gas structure due to coefficients of thermal expansions (CTE) mismatches. The interfacial shear and peeling stresses in multilayered stacks subjected to uniform temperature variation are studied. Finite strain elastic – plastic analysis is performed on a crack which lies on the interface between the diamond and gas materials. The ductile fracture from the tip of the interface crack, the stress and strain fields and distribution of microvoid volume fraction are analyzed.

Psoriasis, stress, and strain

1971 ◽  
Vol 103 (6) ◽  
pp. 599-605 ◽  
Author(s):  
R. Baughman
Keyword(s):  
Stress And Strain
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