Coarsening of a Quiescent Electrorheological Fluid II: Theory

1992 ◽  
Vol 289 ◽  
Author(s):  
Thomas C. Halsey
Keyword(s):  
Phase Transition ◽  
Light Scattering ◽  
Solid Phase ◽  
Electrorheological Fluid ◽  
Good Accord ◽  
Scattering Measurements ◽  
Thermal Mechanism ◽  
Solid Phase Transition ◽  
Field Lines ◽  
Chain Interaction

AbstractThe coarsening observed orthogonal to the field lines in light scattering studies of a quiescent electrorhcological fluid during the “liquid-solid” phase transition can be qualitatively understood using the thermal mechanism of chain interaction proposed by Halsey and Toor. By analyzing fluctuations in the interaction between chains, we predict a power-law increase of the column width with time, with a time constant that decreases as a power of the electric field. Lubrication forces between the particles may control the time scale of these fluctuations. These predictions are in good accord with light scattering measurements.

scholarly journals Coarsening of a Quiescent Electrorheological Fluid I: Experiment

1992 ◽  
Vol 289 ◽  
Author(s):  
James E. Martin ◽  
Judy Odinek ◽  
Thomas C. Halsey
Keyword(s):  
Light Scattering ◽  
Solid Phase ◽  
Electrorheological Fluid ◽  
Two Dimensional ◽  
Strong Light ◽  
Scattering Study ◽  
Evolution Of Structure ◽  
Field Lines ◽  
Particle Chaining ◽  
Kinetics Of

AbstractWe report a real-time, two-dimensional light scattering study of the evolution of structure in a concentrated electrorheological fluid during the ‘liquid-solid’ phase transition. We find that after particle chaining along the electric field lines, strong light scattering lobes appear at a finite scattering wavevector q orthogonal to the field lines, and then brighten as they move to q=0. This indicates the existence of an unstable concentration fluctuation that signifies the segregation of chains into columns. In fact, the observed growth kinetics of the characteristic length, as well as the form of the structure factor, are qualitatively similar to two-dimensional spinodal decomposition in a system with a conserved order parameter.

Viscoelastic Behavior of 1-Dodecanol Monolayers Undergoing a Liquid−Solid Phase Transition. A Surface Quasielastic Light Scattering Study

Langmuir ◽  
2000 ◽  
Vol 16 (16) ◽  
pp. 6657-6666 ◽  
Author(s):  
Mercedes G. Muñoz ◽  
Larisa Luna ◽  
Francisco Monroy ◽  
Ramón G. Rubio ◽  
Francisco Ortega
Keyword(s):  
Phase Transition ◽  
Light Scattering ◽  
Solid Phase ◽  
Viscoelastic Behavior ◽  
Quasielastic Light Scattering ◽  
Scattering Study ◽  
Solid Phase Transition

Solidification of Ionic Liquids: Theory and Techniques

2010 ◽  
Vol 63 (4) ◽  
pp. 544 ◽  
Author(s):  
Anja-Verena Mudring
Keyword(s):  
Phase Transition ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Solid Phase ◽  
Soft Materials ◽  
Separation Science ◽  
Vast Number ◽  
Plastic Crystals ◽  
Thermal Fluids ◽  
Solid Phase Transition

Ionic liquids (ILs) have become an important class of solvents and soft materials over the past decades. Despite being salts built by discrete cations and anions, many of them are liquid at room temperature and below. They have been used in a wide variety of applications such as electrochemistry, separation science, chemical synthesis and catalysis, for breaking azeotropes, as thermal fluids, lubricants and additives, for gas storage, for cellulose processing, and photovoltaics. It has been realized that the true advantage of ILs is their modular character. Each specific cation–anion combination is characterized by a unique, characteristic set of chemical and physical properties. Although ILs have been known for roughly a century, they are still a novel class of compounds to exploit due to the vast number of possible ion combinations and one fundamental question remains still inadequately answered: why do certain salts like ILs have such a low melting point and do not crystallize readily? This Review aims to give an insight into the liquid–solid phase transition of ILs from the viewpoint of a solid-state chemist and hopes to contribute to a better understanding of this intriguing class of compounds. It will introduce the fundamental theories of liquid–solid-phase transition and crystallization from melt and solution. Aside form the formation of ideal crystals the development of solid phases with disorder and of lower order like plastic crystals and liquid crystals by ionic liquid compounds are addressed. The formation of ionic liquid glasses is discussed and finally practical techniques, strategies and methods for crystallization of ionic liquids are given.

Solid–solid phase transition study of ε-CL-20/binder composites

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 859-865 ◽  
Author(s):  
Changping Guo ◽  
Dunju Wang ◽  
Bing Gao ◽  
Jun Wang ◽  
Bo Luo ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid Phase ◽  
Solid Phase Transition ◽  
Transition Study ◽  
Dsc Curves

The comparison of solid–solid phase transition (ε → γ polymorph) of CL-20 and Cl-20/composites revealed by DSC curves.

scholarly journals A Liquid-to-Solid Phase Transition of the ALS Protein FUS Accelerated by Disease Mutation

Cell ◽  
2015 ◽  
Vol 162 (5) ◽  
pp. 1066-1077 ◽  
Author(s):  
Avinash Patel ◽  
Hyun O. Lee ◽  
Louise Jawerth ◽  
Shovamayee Maharana ◽  
Marcus Jahnel ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid Phase ◽  
Disease Mutation ◽  
Solid Phase Transition
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