Abstract:
Die Erfindung betrifft die Verwendung von ionischen Flüssigkeiten zur Verbesserung der Schmierwirkung von synthetischen, mineralischen und nativen ölen. Insbesondere betrifft die Erfindung eine verbesserte Schmierstoffzusammensetzung, die gegen thermischen und oxidativen Angriff geschützt ist.
Abstract:
A method for increasing and/or modulating the yield shear stress of an electrorheological fluid includes applying a sufficient electric field to the fluid to cause the formation of chains of particles, and then applying a sufficient pressure to the fluid to cause thickening or aggregation of the chains. An apparatus for increasing and/or modulating the transfer of force or torque between two working structures includes an electrorheological fluid and electrodes through which an electric field is applied to the fluid such that particles chains of particles are formed in the fluid and, upon application of pressure to the fluid, the chains thicken or aggregate and improve the force or torque transmission.
Abstract:
Proposed are homogeneous electroviscous liquids containing or consisting of aluminium soaps made from the reaction products of one or more polycarboxylic acids, or their anhydrides or half-esters, with reactive aluminium compounds. Such liquids exhibit a high electro-rheological effect and are completely homogenous.
Abstract:
An electrorheological material comprising a carrier fluid and an atomically polarizable particle component. The atomically polarizable particle component has a crystalline lattice structure which allows atoms to shift position with respect to each other in response to the application of an electric field. The electrorheological materials are subjected to an alternating current electric field at a frequency of at least 500 Hz. The materials exhibit substantial electrorheological activity over a broad temperature range.
Abstract:
Homogeneous electroviscous liquids contain or are composed of aluminium soaps on the basis of reaction products of one or several polycarboxylic acids or their anhydrides or semi-esters with aluminium alcoholates. Such liquids have a high electro-rheological activity and are totally homogeneous.
Abstract:
Fluides electrovisqueux (EV) se composant de particules hydrophiles solides dispersees dans des liquides hydrophobes, le liquide contenant un composant de derives de diaryle correspondant a la formule generale I: (FORMULE) dans laquelle R represente CY2, O, S, SO, SO2, SiF2, ou O-SiY2-O, Y1 et X2 sont des halogenes, (m + n) est compris entre 1 et 3 en moyenne, et (p + q) est compris entre 0 et 1 en moyenne. Les fluides EV contenant ces nouveaux composants possedent generalement des proprietes ameliorees en ce qui concerne les viscosites inferieures, les conductivites electriques, les toxicites et les points de congelation. Dans un mode de realisation preferentielle, le composant est un melange de diphenylmethanes bromes dans lequel R represente CH2, n = 0, X1 = Br, (m + n) est approximativement 1, et (p + q) = 0.
Abstract:
The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces (SLIPS) that can be modified as desired. Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of objects, referred to herein as Object A (Solid A or Liquid A). Use of an external stimuli or degradation of the Liquid B can be utilized to change the characteristics of SLIPS structures reversibly or irreversibly that may be desired in a number of different applications. Numerous characteristics, such as adhesion, optical, mechanical, and the like, can be dynamically changed.
Abstract:
The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces (SLIPS) that can be modified as desired. Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of objects, referred to herein as Object A (Solid A or Liquid A). Use of an external stimuli or degradation of the Liquid B can be utilized to change the characteristics of SLIPS structures reversibly or irreversibly that may be desired in a number of different applications. Numerous characteristics, such as adhesion, optical, mechanical, and the like, can be dynamically changed.
Abstract:
Die vorliegende Erfindung betrifft neuartige elektrorheologische Flüssigkeiten (ERF) auf Polymer-Basis mit organischen Dotierstoffen sowie Verwendungszwecke hiervon.