منابع مشابه
A Review of Ionic Liquid Lubricants
Due to ever increasing demands on lubricants, such as increased service intervals, reduced volumes and reduced emissions, there is a need to develop new lubricants and improved wear additives. Ionic liquids (ILs) are room temperature molten salts that have recently been shown to offer many advantages in this area. The application of ILs as lubricants in a diverse range of systems has found that...
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We observed light-induced alignment of the nematic liquid crystal, 4, 4(')-n-pentylcyanobiphenyl (5CB), on a fused quartz. Irradiation of the adsorbed layer with polarized ultraviolet light produced homogeneous alignment in a 5CB-filled liquid crystal cell with the easy orientation axis perpendicular to the polarization direction. The measured anchoring energy increases with illumination up to ...
متن کاملNovel Vitrifiable Liquid Crystals as Optical
Due to the spontaneous molecular self-assembly into various mesophases and the associated optical anisotropy, liquid crystals (LCs) have found numerous electro-optical and optoelectronic applications. There are several generic device concepts. In the now almost mature LC display technology, these materials function in the fluid state where an applied field induces molecular reorientation with a...
متن کاملLiquid Crystals as Stationary Phases in Chromatography
The most correct analysis of the compositions of diverse analytes mixtures is significant for analytical studies in different fields; however, many prevalent analytes cannot be identified employing traditional partition gas chromatographic methods. Thus, the increasing requirements on analytes of isomeric compounds and the problems encountered in their separation demand a study of more diverse ...
متن کاملNanotribology of Symmetric and Asymmetric Liquid Lubricants
When liquid molecules are confined in a narrow gap between smooth surfaces, their dynamic properties are completely different from those of the bulk. The molecular motions are highly restricted and the system exhibits solid-like responses when sheared slowly. This solidification behavior is very dependent on the molecular geometry (shape) of liquids because the solidification is induced by the ...
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ژورنال
عنوان ژورنال: Lubricants
سال: 2019
ISSN: 2075-4442
DOI: 10.3390/lubricants7120111