نتایج جستجو برای: eutectic mixtures

تعداد نتایج: 53706  

The present research aims to study the liquation and re-solidification of liquid during friction stir spot welding of AZ91 alloy. Although friction stir spot welding is a solid-state process, the presence of Mg17Al12 intermetallic compounds results in liquation during the welding process. In this study, friction stir spot welding was performed with a tool rotational speed of 2500 rev/min and a ...

2015
Farouq Sabri Mjalli Omar Umar Ahmed

−Deep Eutectic Solvents are promising greener and cheaper alternatives to ionic liquids. The applications involving these solvents depend largely on their physical and chemical properties. However, a DES may possess both desirable and undesirable properties for a certain application. In such situations, mixing two DESs, each possessing a unique set of properties, may yield one with a more suita...

2008
Seiki Sakuyama Toshiya Akamatsu Keisuke Uenishi Takehiko Sato

The effects of a third element, namely silver, copper, zinc, or antimony, on the microstructure and mechanical properties of eutectic tin-bismuth (Sn–Bi) solder were investigated. The investigation showed that, except for zinc, the addition of a trace amount of the third element improves the ductility of the Sn–Bi solder owing to the formation of a fine, homogeneous ternary eutectic microstruct...

2005
R. E. JOHNSON

The microstructures of eutectics between compounds were studied for systems MnO-MnS, NaCl-NaF, NaBr-NaF, LiF-NaF, and FeO-FeS. With the exception of FeS, all the compounds had the NaC1-type structure. In the systems having only NaC1-type structures, the lamellas of the two eutectic phases had matching crystal orientations. There was less consistency among the eutectic systems, however, than bet...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1393

حلالهای deep eutectic اخیرا بعنوان حلالهای سبز شناخته شده اند.ای حلالها می تواند محیط مناسبی برای واکنشهای آنزیمی باشد بنابراین در این مطالعه اثر این مایعات بر فعالیت، پایداری و ساختار آنزیم لاکاز بررسی شد.

Journal: :The Journal of chemical physics 2015
László Rátkai Attila Szállás Tamás Pusztai Tetsuo Mohri László Gránásy

Extending previous work [Pusztai et al., Phys. Rev. E 87, 032401 (2013)], we have studied the formation of eutectic dendrites in a model ternary system within the framework of the phase-field theory. We have mapped out the domain in which two-phase dendritic structures grow. With increasing pulling velocity, the following sequence of growth morphologies is observed: flat front lamellae → eutect...

Journal: :Journal of the Nuclear Fuel Cycle and Waste Technology(JNFCWT) 2017

Journal: :Journal of Molecular Liquids 2021

Mixtures of carbohydrates are often reported in the literature as deep eutectic solvents yet, most cases, their solid–liquid phase diagrams poorly characterized and no evidence is available to validate this classification. In work, binary systems composed sugar alcohols mannitol or maltitol meso-erythritol, xylitol, sorbitol, were experimentally determined. The results obtained reveal that thes...

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