نتایج جستجو برای: eutectic mixture

تعداد نتایج: 97889  

Journal: :Journal of the American Chemical Society 2001
G Rothenberg A P Downie C L Raston J L Scott

The concept of an organic reaction between two macroscopic solid particles is investigated. Thus, we study several reactions that have been recently reported to proceed "in the solid phase" and clearly show that, in most cases, grinding the two solid reactants together results in the formation of a liquid phase. This is true both for catalytic transformations (e.g., aldol condensations and olig...

2017
Hosein Ghaedi Muhammad Ayoub Suriati Sufian Azmi Mohd Shariff Bhajan Lal

Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, 6 MALAYSIA 7 * Correspondence: [email protected]; Tel.: +60-53687623 8 9 10 Abstract: Deep eutectic solvents (DESs) are known as tunable solvents. It is possible to prepare 11 ternary deep eutectic solvent (TDES) are used for desired purpose by selecting the suitable molar 12 ratio and com...

2006
By PETER GUBA M. GRAE WORSTER

We study the problem of nonlinear development of oscillatory convective instability in a two-dimensional mushy layer during solidification of a binary mixture. We adopt the near-eutectic limit, making the problem analytically tractable using standard perturbation techniques. We consider also a distinguished limit of large Stefan number, which allows a destabilization of the system to an oscilla...

2017
Yujin Park Jung-Hwan Bang Chul Min Oh Won Sik Hong Namhyun Kang

Solder joints are the main weak points of power modules used in harsh environments. For the power module of electric vehicles, the maximum operating temperature of a chip can reach 175 ◦C under driving conditions. Therefore, it is necessary to study the high-temperature reliability of solder joints. This study investigated the creep properties of Sn-3.0Ag-0.5Cu (SAC305) and Sn-8.0Sb-3.0Ag (SSA8...

2014
Roksana Markiewicz Stefan Jurga

Nanostructures due to their small size, in comparison with their bulk counterparts, possess unique properties including magnetic, electrochemical and photonic properties. Therefore, such nanomaterials found a wide variety of application in different fields such as catalysis, electronic and spintronics, life and material sciences. Controlling the morphology and structure of nanomaterials is of c...

ZB Mousavi

Background: EMLA cream is a eutectic mixture of Lidocaine and Prilocaine used to induce local anesthesia for dermatological procedures. Objective: This study was designed to evaluate the efficacy of EMLA cream in reducing the pain of intralesional injection of steroid in patients with alopecia areata. Patients and Methods: This study was carried out on 27 alopecia areata patients. The injection...

Journal: :Theoretical Foundations of Chemical Engineering 2021

The results of studying the physical properties a deep eutectic solvent based on choline chloride and sulfosalicylic acid have been presented. A phase diagram for this two-component mixture has constructed, dependences its density refractive index temperature studied first time. molar refractivity under study calculated. possibility using as an extractant recovery metal ions in solid–liquid sys...

2007
D. C. Lin

This paper presents and discusses issues relevant to solidification of a chosen lead-free solder, the eutectic Sn-3.5%Ag, and its composite counterparts. Direct temperature recordings for the no-clean solder paste during the simulated reflow process revealed a significant amount of undercooling to occur prior to the initiation of solidification of the eutectic Sn-3.5%Ag solder, which is 6.5 C, ...

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 ...

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