Crystalline roughness as a morphological characteristic of the surface of electroplated silver coatings

Bersirova, Oksana; Кublanovsky, V. S.

doi:10.1134/s1070427209100081

Cited by 9 publications

(6 citation statements)

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“…The coating roughness commonly weakly depends on the current density, and just this behaviour is observed for the electroplated silver coatings under our previous study (22,23). Silver is a metal belonging to the intermediate group as regards the roughness sensitivity to changes in electrolysis conditions.…”

Section: Scanning Tunnel Microscopy (Stm) Studysupporting

confidence: 55%

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Electrochemical Formation of Functional Silver Coatings: Nanostructural Peculiarities

Bersirova¹,

Кublanovsky²,

Cesiulis

2013

ECS Trans.

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The microstructure of silver coatings electrodeposited from different types of baths without brightening agents had been studied. The principal formulations of baths were following: cyanide: 0.75M KAg(CN)2+1.5M KCN+0.2M KOH; dicyanoargentate-thiocyanate (DCAT): 0.75M KAg(CN)2+6M KCNS + 1M K2CO3; dicyanoargentate-borate-phosphate-carbonate (BPC): 0.75M KAg(CN)2+0.82M KH2PO4+ 0.41M H3BO3+0.15M K2CO3+0.69M KOH; thiocyanate: 0.75M AgNO3 + 6M KCNS. The values of grain size was evaluated based on the XRD examination and are in the range 60 nm (for coatings electrodeposited from cyanide baths at current densities (15-40 mA cm-2) to 100 nm (for thiocyanate and BPC baths). The values of lattice parameter and interplanar distance obtained for Ag coatings are higher than that obtained for metallurgically prepared silver. Regardless on the type of bath, the obtained coatings were polycrystalline and nanocrystalline. The coatings electrodeposited at low current densities (< 10 mA cm-2) are rather crystalline that evidently was confirmed by SEM examination of surface morphology.

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Section: Scanning Tunnel Microscopy (Stm) Studysupporting

confidence: 55%

“…Obviously, the crystallization conditions might be different in various types of electroplating baths that cause the variations of microstructure, surface morphology and roughness (11)(12)(13)(14). So, the functionality of electrodeposits strongly depends on the crystallite size and morphology of surface.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Formation of Functional Silver Coatings: Nanostructural Peculiarities

Bersirova¹,

Кublanovsky²,

Cesiulis

2013

ECS Trans.

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“…• the stresses in the contact zone are sufficient for plastic deformation of the protrusions of microdimensions of the silver coating [10]; • the amount of plastic deformation does not exceed the thickness of the coating [11];…”

Section: Methods and Modelingmentioning

confidence: 99%

Development of technology for processing internal channels of small-sized parts based on computer modeling

Zverovshchikov

Gurin

Steshkin

et al. 2022

J. Phys.: Conf. Ser.

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In the manufacture of small-sized parts, the finishing of the internal channels of a complex cross-section with a coating is particularly difficult. To solve this problem, it is proposed to use centrifugal processing with steel balls in containers with planetary rotation. The paper presents the results of computer simulation of the contact interaction of balls with the surface of the part channel. These data made it possible to establish that at certain velocities and directions of the flight vector at the moment of contact, the balls allow you to remove the micro-roughness of the coating without violating the integrity of the part base. The simulation results formed the basis for the design of an industrial installation and the assignment of centrifugal-planetary processing modes. The proven technology of finishing the internal channels of small-sized details provided a reduction in the proportion of damaged parts by 4...4.3 times relative to the basic technological process.

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“…The morphology, structure, and, consequently, the properties of the resulting coatings are affected by the electrolysis parameters and the electrolyte composition, in particular, the composition of electrochemically active complexes (EAC) directly discharged on the electrode [8,9]. The authors of [10][11][12] substantiated the criteria for the selection of ligands for complex, including multiligand, electrolytes and the conditions for their compatibility in one coordination sphere during the formation of mixed-ligand complex compounds.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Characteristics of Tin Films in Cycling in Lithium-Ion Batteries

et al. 2019

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Thin electrolytic fine tin sediments were obtained from pyrophosphate electrolyte under different electrolysis conditions and duration. The electrochemical characteristics of tin coatings as anode materials of lithium-ion batteries are studied using potentiodynamic and galvanostatic cycling methods. The effect of the properties of coatings, in particular their mass, on the value of specific capacitance and its stability, including during discharge with different current densities, has been established. It is shown that the studied tin sediments have high initial specific capacity that is close to theoretically possible. The maximum stability of the specific capacity during cycling is characteristic of electrodes with minimal masses of precipitation. The impedance spectra recorded for the studied electrodes in the initial state and after the first lithiation are analyzed.

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Crystalline roughness as a morphological characteristic of the surface of electroplated silver coatings

Cited by 9 publications

References 0 publications

Electrochemical Formation of Functional Silver Coatings: Nanostructural Peculiarities

Electrochemical Formation of Functional Silver Coatings: Nanostructural Peculiarities

Development of technology for processing internal channels of small-sized parts based on computer modeling

Electrochemical Characteristics of Tin Films in Cycling in Lithium-Ion Batteries

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