Metallurgical Joining of Immiscible System: Pure Mg and Pure Fe

2021 ◽  
Author(s):  
Hrishikesh das ◽  
Bharat Gwalani ◽  
Xiaolong Ma ◽  
Piyush Upadhyay
Keyword(s):  
Immiscible System

Extended x-ray-absorption fine-structure studies on ball-milled powders of the immiscible system Cu-V

1992 ◽  
Vol 46 (9) ◽  
pp. 5711-5714 ◽  
Author(s):  
Kenji Sakurai ◽  
Mitsuhiro Mori ◽  
Uichiro Mizutani
Keyword(s):  
Fine Structure ◽  
X Ray ◽  
Absorption Fine ◽  
Immiscible System ◽  
X Ray Absorption ◽  
Milled Powders

Mechanochemical Synthesis of Novel Sensor Materials

2009 ◽  
Vol 1226 ◽  
Author(s):  
Monica Sorescu ◽  
Lucian Diamandescu ◽  
Adelina Tomescu
Keyword(s):  
Ball Milling ◽  
Milling Time ◽  
Gas Sensing ◽  
Mechanochemical Activation ◽  
Magnetic Characteristics ◽  
X Ray Diffraction ◽  
Recoilless Fraction ◽  
X Ray ◽  
Immiscible System ◽  
Sensing Applications

AbstractThe xZnO-(1-x)alpha-Fe2O3 and xZrO2-(1-x)alpha-Fe2O3 nanoparticles systems have been obtained by mechanochemical activation for x=0.1, 0.3 and 0.5 and for ball milling times ranging from 2 to 24 hours. Structural and magnetic characteristics of the zinc and zirconium-doped hematite systems were investigated by X-ray diffraction (XRD), Mössbauer spectroscopy and conductivity measurements. Using the dual absorber method, the recoilless fraction was derived as function of ball milling time for each value of the molar concentration involved. As ZnO is not soluble in hematite in the bulk form, the present study clearly illustrates that the solubility limits of an immiscible system can be extended beyond the limits in the solid state by mechanochemical activation. Moreover, this synthetic route allowed us to reach nanometric particle dimensions, which makes these materials very important for gas sensing applications.

scholarly journals Nanoparticles by Mechanosynthesis in the Immiscible System Cu-Co

2011 ◽  
Vol 17 (S2) ◽  
pp. 1838-1839
Author(s):  
J Angeles-Islas ◽  
D Ramirez-Rosales ◽  
R Zamorano-Ulloa ◽  
H Calderon
Keyword(s):  
Immiscible System

Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.

Preparation and Characterisation of Al/Pb Layered Composite Materials

2011 ◽  
Vol 194-196 ◽  
pp. 1385-1388
Author(s):  
Sheng Gang Zhou ◽  
Pei Xian Zhu ◽  
Yong Sun ◽  
Li Da Sun
Keyword(s):  
Composite Materials ◽  
Flexural Strength ◽  
Energy Dispersive Spectrometer ◽  
Layered Composite ◽  
Heat Of Mixing ◽  
Immiscible System ◽  
Metallurgical Bonding ◽  
Coating Method ◽  
Different Temperatures ◽  
Solid Liquid

Taking Sn as the third element in the Al/Pb immiscible system, the Al-Sn-Pb layered composite materials at different temperatures were prepared by solid-liquid coating method. Microstructure of the layered composite materials was studied by scanning electron microscope (SEM) and Energy Dispersive Spectrometer (EDS), and then the flexural strength and interface adhesion of the layered composite materials were measured. The results showed that, introducing of Sn reduced the enthalpy heat of mixing of Al/Pb system to be negative, and inter-diffusion of elements in the interface region occurred, and a metallurgical bonding interface between Pb and Al formed. The optimum diffusion-sintering temperature-time for the best flexural strength were determined by 250οС , 0.5h, respectively. Under the controlled conditions, the mechanism was discussed.

scholarly journals Miscibility improvement of LDPE/PVA blends by using silane-coupling agent

2018 ◽  
Vol 26 (3) ◽  
Author(s):  
Zuhair Jabbar Abdul Ameer ◽  
Nabeel Hasan Hameed
Keyword(s):  
Fourier Transforms ◽  
Young Modulus ◽  
Scanning Calorimetry ◽  
Elongation At Break ◽  
Immiscible System ◽  
Large Size ◽  
Digital Microscope ◽  
Result Show ◽  
Twin Screw ◽  
Poor Adhesion

 Mixing two polymers usually results in an immiscible system, characterized by a coarse, easy to alter morphology, and poor adhesion between the phases. These blends have large size domains of dispersed phase and poor adhesion between them. Therefore, miscibility of polymer blend must be improved by using suitable additives such as compatibilizer. In this study 5% of silane 3-(trimethoxysilyl)propyl methacrylate is used as compatibilizer to improve the miscibility and compatibility of LDPE/PVA blends. The samples were prepared by using a twin screw extruder. LDPE and PVA have been mixed with different weight proportion. Several tests were carried out to identify the compatibility and miscibility of the blends such as tensile properties, hardness, density, Fourier transforms infrared FTIR, digital microscope, scanning electron microscopy SEM and differential scanning calorimetry DSC. Result show that tensile strength, young modulus, elongation at break, density and hardness is increased with silane addition to the blends. SEM and digital microscope shows an improvement in the miscibility due to the better interaction between the two polymers as silane is added.

Acceleration of convective dissolution by chemical reaction in a Hele–Shaw cell

2016 ◽  
Vol 18 (34) ◽  
pp. 23727-23736 ◽  
Author(s):  
Ilia Cherezov ◽  
Silvana S. S. Cardoso
Keyword(s):  
Experimental Study ◽  
Chemical Reaction ◽  
Second Order ◽  
Hydrodynamic Effect ◽  
Immiscible System ◽  
System P ◽  
Order Chemical Reaction ◽  
Hele Shaw Cell

Experimental study of the destabilising hydrodynamic effect of a second-order chemical reaction in an immiscible system.

Calculation of Liquid–Solid Interfacial Free Energy in Pb–Cu Binary Immiscible System

2016 ◽  
Vol 71 (11) ◽  
pp. 1073-1077 ◽  
Author(s):  
Hong-shan Li ◽  
Sheng-gang Zhou ◽  
Yong Cao
Keyword(s):  
Free Energy ◽  
Binary System ◽  
Physical Model ◽  
Interfacial Free Energy ◽  
Theoretical Formula ◽  
Immiscible System ◽  
Energy Theory ◽  
Experimental Values ◽  
Two Parameters ◽  
Solid Liquid

AbstractBased on the solid–liquid interfacial free energy theory of the complex Warren binary & pseudo-binary system and through the simplification of it by taking Pb–Cu binary system as an example, the physical model for it in binary immiscible system can be obtained. Next, its thermodynamic formula is derived to obtain a theoretical formula that only contains two parameters, and comparisons are made with regard to γSL calculated values and experimental values of MPE (multiphase equilibrium method) under several kinds of temperatures. As manifested in the outcomes, the improved physical model and theoretical formula will become not only easy to understand but also simple for calculation (the calculated value of γSL depends on two parameters, i.e. temperature and percentage composition of Cu atom). It can be treated as the foundation of application for the γSL calculation of liquid–solid interfacial free energy in other immiscible systems.

Size and Solid Solubility in Electrodeposited Ag-Ni Nanoparticles

2012 ◽  
Vol 736 ◽  
pp. 21-26 ◽  
Author(s):  
Chandan Srivastava ◽  
Brij Mohan Mundotiya
Keyword(s):  
Solid Solution ◽  
Nucleation Rate ◽  
Solid Solubility ◽  
Solution Structure ◽  
Enthalpy Of Mixing ◽  
Structure Effect ◽  
Current Work ◽  
Ni Nanoparticles ◽  
Immiscible System

Owing to a large difference in atomic sizes and a positive enthalpy of mixing, Ag and Ni form an immiscible system. In the current work, we report on the electrodeposition of Ag-Ni nanoparticles with a solid solution structure. Effect of current on the relative changes in composition and sizes of solid solution nanoparticles is illustrated. It is shown that with increase in the deposition current, size of Ag-Ni nanoparticles decreases due to an increased nucleation rate. With decrease in size the extent of miscibility of Ni in Ag increases due to increased energetic contribution from the particle curvature.

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