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Showing 1 to 19 of 19 for “"electrodeposits"”.
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Residual stress in nanocrystalline nickel tungsten electrodeposits
… the residual stress of thick nanocrystalline electrodeposits poses several unique challenges due to their fine grain structure, thickness distribution, and matte surface. We employ a three-dimensional profilometry-based approach that addresses each of these complicating factors and enables …
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Structure of nickel-iron and nickel-zinc electrodeposits
Electrodeposited nickel-iron and nickel-zinc alloys have been studied using `direct' methods e. g. XRD, microscopy, EDX and GDOES on coatings having different thicknesses and deposited on different substrates. The work has confirmed and extended the ideas of Finch et al. (2, 51), Piontelli et al. …
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In-situ study of the influence of additives on the growth behavior of copper electrodeposits on copper single crystal
… known to be essential in obtaining desired metal electrodeposits in the microelectronic industry, however, fundamental design principles for their use and a scientific understanding of their interaction during electrodeposition is lacking. In the present study we investigated electrodeposition of …
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The electrodeposition of copper on carbon
… was to study the properties of copper electrodeposits on carbon, to compare the various methods of electrodeposition as to adhesion to the carbon, nature of the interface, polishability, solderability, effect of the carbon surface, effect of temperature of plating, and to determine a …
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Advances In The Electrodeposition Of Tantalum From Ionic Liquids In A Technical Plating Setup
… determine the effect on the deposition process. Electrodeposits formed during experimental trials were analyzed through the use of scanning electron microscopy (SEM) with energy-dispersive x-ray spectroscopy (EDS).</p> <p>This study represents particular advancements in the body of knowledge on …
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ΕΠΙΔΡΑΣΗ ΤΗΣ ΦΥΣΗΣ ΤΩΝ ΑΝΙΟΝΤΩΝ CL ΚΑΙ S04 ΣΤΗ ΔΟΜΗ ΚΑΙ ΤΙΣ ΙΔΙΟΤΗΤΕΣ ΤΩΝ ΗΛΕΚΤΡΟΛΥΤΙΚΩΝ ΕΠΙΘΕΜΑΤΩΝ ΝΙ
… OF STRUCTURE WERE MADE. THE PROPERTIES OF THE ELECTRODEPOSITS WERE STUDIED. A) CURRENT EFFICIENCY, B) CORROSION, C) REFLEXION, D) HARDNESS, E) QUALITY FACTOR Q.
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ΗΛΕΚΤΡΟΛΥΤΙΚΗ ΑΠΟΘΕΣΗ ΝΙΚΕΛΙΟΥ ΜΕ ΧΡΗΣΗ ΠΑΛΜΙΚΟΥ ΡΕΥΜΑΤΟΣ ΜΕΤΑΒΑΛΛΟΜΕΝΗΣ ΦΟΡΑΣ
… PROPERTIES (HARDNESS-ROUGHNESS) OF THE NICKEL ELECTRODEPOSITS. THE BEST PREPARATION CONDITIONS OF SMOOTH AND HARD NICKEL ELECTRODEPOSITS OF DEFINED CRYSTAL STRUCTURE WERE DETERMINED AS WELL. THE NICKEL ELECTRODEPOSITION WAS REALISED FROM A WATTS TYPE BATH ON A ROTATED CATHODE, THE CRYSTALLITES …
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In Situ Infrared Spectroscopic Studies of Electrodeposition Additive Adsorption on Copper
CTA with bisulfate counterion promoted smooth electrodeposits. Secondary ion mass spectroscopy (SIMS) depth profiles indicated that CTA was not significantly incorporated into copper deposits grown in the presence of CTA with HSO$\sb4\sp-$ counterion, except at very high overpotentials ($>$500 mV). …
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Investigation of the electrowinning of neodymium oxide in room temperature ionic liquid
… cathode and neodymium anode. Furthermore, the electrodeposits from are investigated by scanning electron microscopy (SEM) and energy dispersive X- ray analysis (EDX).
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Effect of water on copper electrodeposition from water-containing deep eutectic solvents
… morphology and microstructure features of Cu electrodeposits were assessed using SEM, EBSD and XRD techniques. One of the key technical issues to be resolved before practical DES-based plating systems can be deployed is the characterisation of the anode reaction. Therefore, the anodic reaction …
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Control of electrodeposit properties of nickel and nickel alloy by pulse plating.
… of using pulse plating to control the quality of electrodeposits have been considered.
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Controlling Electrocatalytic Interfaces using Thin Films and Nanostructures for Energy Applications
… molecules by modifying the SAMs with ZnO electrodeposits. Interestingly, I found that there is a significant change in the electron-transfer rates as a function of SAM linker length when the SAM defect sites are blocked with ZnO electrodeposits. The surface modification protocols used in …
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The effect of mass transport on deposit quality in copper electrowinning
<p>"Roughness and nodulation of copper electrodeposits depend strongly on mass transfer conditions of copper ions to the electrode surface. Mass transfer properties in electrowinning electrolytes were first characterized. The effective diffusivity of cupric ion was measured with a rotating disk …
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Hard and tough electrodeposited aluminum-manganese alloys with tailored nanostructures
… the grain size and phase distribution of the electrodeposits; single phase FCC alloys with nanocrystalline grains, as well as dual-phase alloys with homogeneous phase distribution are synthesized. Solute distributions in these alloys are investigated using atom probe tomography. Implanted Ga …
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Nanostructured Metal Oxide Coatings for Electrochemical Energy Conversion and Storage Electrodes
… electrodes. The morphology and quantity of MnO2 electrodeposits was controlled by adjusting the density of graphene foliates on a novel graphenated carbon nanotube (g-CNT) scaffold. This control enabled the nanocomposite supercapacitor electrode to reach a capacitance of 640 F/g, under MnO2 …
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Copper and Copper Alloys: Studies of Additives
… quality of the deposited Cu-Ag thin films. Electrodeposits of copper-tin alloy thin films were prepared from acidic copper sulfate electrolytes by polarizing copper deposition into the region where Sn deposition became possible. The ability to polarize copper deposition demonstrated with the …
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Electrodeposition of Copper on Ruthenium Oxides and Bimetallic Corrosion of Copper/Ruthenium in Polyphenolic Antioxidants
Copper (Cu) electrodeposition on ruthenium (Ru) oxides was studied due to important implications in semiconductor industry. Ruthenium, proposed as the copper diffusion barrier/liner material, has higher oxygen affinity to form different oxides. Three different oxides (the native oxide, reversible …