Viscoelasticity of dense suspensions of thermosensitive microgel mixtures undergoing colloidal gelation

Soft Matter ◽  
2018 ◽  
Vol 14 (9) ◽  
pp. 1596-1607 ◽  
Author(s):  
Saori Minami ◽  
Takumi Watanabe ◽  
Daisuke Suzuki ◽  
Kenji Urayama

Viscoelasticity of dense suspensions of thermosensitive microgel mixtures exhibits characteristic temperature-dependence resulting from colloidal gelation.

2001 ◽  
Vol 63 (11) ◽  
Author(s):  
C. Grazioli ◽  
Z. Hu ◽  
M. Knupfer ◽  
G. Graw ◽  
G. Behr ◽  
...  

1985 ◽  
Vol 46 ◽  
Author(s):  
K. Nauka ◽  
W. Walukiewicz ◽  
J. Lagowski ◽  
H.C. Gatos

AbstractAnnealing of oxygen-rich Czochralski silicon at temperatures between 700°C and 1000°C introduces a new scattering mechanism which correlates very well with the presence of oxide precipitates. In lightly doped crystals (n,p ∼1015cm−3) this mechanism becomes dominant at T<170°C, and it determines to a large extent the value of the electron (hole) mobilities. The effect vanishes upon annealing at 1300°C; such heat treatment causes the dissolution of oxide precipitates. The new component mobility related to precipitates was found to exhibit a characteristic temperature dependence μ ∝ T0.5. This dependence was explained in terms of scattering of free carriers by spacially slowly varying potential associated with oxide precipitates of varying size.


2004 ◽  
Vol 18 (15) ◽  
pp. 2209-2214
Author(s):  
G. STIUFIUC ◽  
R. STIUFIUC ◽  
E. MACOCIAN ◽  
H. RAFFY ◽  
G. ILONCA

We investigate the effect of the opening of the pseudogap on the temperature dependence of the in-plane resistivity ρab(T) for Bi 2212 epitaxial thin films having different oxygen contents. Using successive annealing treatments we were able to bring the films from a maximally overdoped state (characterized by a T c of 63 K) to a strongly underdoped state (T c <10 K ). We also observed a significant change in the temperature dependence of the in-plane resistivity ρab(T). This dependence presents two major characteristics: for the overdoped sample we observed an upward curvature from linearity while for underdoped samples we observed a downturn from linearity starting from a characteristic temperature T* which will be associated with the opening of the pseudogap in the excitation spectrum.


2018 ◽  
Vol 941 ◽  
pp. 2331-2336 ◽  
Author(s):  
Masaru Aniya ◽  
Masahiro Ikeda

The high-temperature viscosity of metallic glass-forming liquids is investigated by using the Bond Strength-Coordination Number Fluctuation (BSCNF) model developed by the authors. For many glass-forming liquids, a salient change in the structural relaxation is observed above the melting point. The temperature dependence of the structural relaxation exhibits a deviation from an Arrhenius-like behavior, and upon cooling it transforms to a non-Arrhenius-like one. In the present study, we show that the BSCNF model describes well the high-temperature viscosity behaviors of metallic liquids. The analysis based on the BSCNF model also enables to extract a characteristic temperature at high temperature. The results of the present study show that such characteristic temperature can be a good indicator for the evaluation of the range of the transition from the Arrhenius-like to the non-Arrhenius-like relaxation behavior.


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