The paper presents results of rheological experiments on viscosity under anisotropic pressure and in electric field of diethylene glycol-based MgAl2O4 nanofluids. Nanofluids have been prepared in a two-step method. The dynamic viscosity of nanofluids with various mass concentrations of nanoparticles was measured in the range of shear rates from 10 s -1 to 1,000 s -1 in constant temperature unde...

We report a detailed experimental study of peculiar thixotropic dynamics carbon black (CB, Vulcan XC-72) suspensions in mineral oil, specifically the observation sequential stress increase then decrease at fixed shear rate step-down test. verify that such dynamics, though peculiar, come from true material response rather than artifacts. also reveal how this long-time decay is associated with an...

In this study, we searched for signs of thixotropic behavior in human rib cage respiratory muscles. If rib cage respiratory muscles possess thixotropic properties similar to those seen in other skeletal muscles in animals and humans, we expect resting rib cage circumference would be temporarily changed after deep rib cage inflations or deflations and that these aftereffects would be particularl...

Thixotropic materials are complex fluids that display time-dependent viscosity and/or yield-stress response upon the application of a fixed deformation, while recovering their original structured-state when deformation is discontinued. effects presents in many different systems and applications, ranging from food products, such as ketchup, to metals, molten aluminum. In this work we present fir...

Thixotropy-governed temporal microfabric evolution, in a naturally occurring illitic marine clay and manufactured kaolinitic at their respective liquid limits, was probed quantitatively by both one-dimensional X-ray diffraction (1DXRD) 2DXRD via orientation index (OI) texture (TI) respectively. Results showed that the two fabric indexes, OI TI, continuously evolved nonmonotonically but consiste...

Many thixo-viscoelastic materials have been reported to undergo enhancement in elastic modulus with time and decrease the same under application of deformation field. Incorporation this feature a viscoelastic structural kinetic model has an apparent possibility violating second law thermodynamics. Furthermore, related experimental observation, stress non-monotonic change as function constant st...

The concept of a Deborah number is widely used in study viscoelastic materials and to represent the ratio material relaxation time timescale observation, demarcate transitions between predominantly viscous or elastic responses. However, this construct does not help quantify importance long transients non-monotonic stress jumps that are often observed more complex time-varying systems. Many thes...