Origine des textures dans les depots electrolytiques de nickel

Amblard, J.; Froment, M.; Spyrellis, N.

doi:10.1016/0376-4583(77)90047-4

Cited by 85 publications

(46 citation statements)

References 28 publications

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“…These peaks are assigned for nickel according to JCPDS data: 04-0850. This sharp picks represents the mixed crystalline phase of coated sample which is found to be different than the pure nickel coating as previously reported by P. Gyoftou et al [21].The highly intense (311) and (111) peak line is attributed to a dispersed[2 1 1] orientation which is responsible to higher hardness [28]. Fig .…”

Section: Distribution Of Particlesmentioning

confidence: 46%

EFFECT OF STIRRING RATE ON ELECTROCHEMICAL CODEPOSITION OF Ni-SiC COMPOSITE

et al. 2015

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Nickel-Silicon Carbide (Ni-SiC) composite has been prepared by electrochemical codeposition technique. Nickel sulfamate bath was used along with grain modifier saccharine and cationic surfactant cetyltrimetylammonium bromide (CTAB). The effect of stirring rate was systematically studied and optimized to get well dispersed SiC particles in appropriate amount. Mixed crystalline phase with reinforced [2 1 1] crystal orientation was obtained by XRD analysis. The result revealed that, 250 revolutions per minute (rpm) is optimum stirring rate for the electrochemical codeposition of Ni-SiC. Coating prepared at 250 rpm showed highest microhardness and lowest coefficient of friction with better surface morphology and well distributed nano SiC particles.

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Section: Distribution Of Particlesmentioning

confidence: 46%

EFFECT OF STIRRING RATE ON ELECTROCHEMICAL CODEPOSITION OF Ni-SiC COMPOSITE

et al. 2015

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“…Amblard has shown that inhibition plays a significant role in the evolution of the microstructure of nickel deposits [25][26][27][28]. According to Amblard, the inhibition is caused by molecules selectively acting on distinct growth directions.…”

Section: Electrochemical Nanostructuring Of Metalsmentioning

confidence: 99%

Replication of microstructured tools for electrochemical machining applications

Weißhaar

Weinmann

Jung

et al. 2015

Int J Adv Manuf Technol

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Electrochemical machining (ECM) is a powerful method to machine metals independently of their mechanical properties. Micro-sized structures can be formed with high precision. For this purpose, it is necessary to manufacture tools with adequately fine structures. Conventional ECM tools were manufactured by micro-drilling, -milling, -turning, etc. Depending on the complexity of the structures, these techniques are very elaborate and expensive. Recently, a new procedure, which combines photolithography and electroforming, the so-called PhoGaTool process (photolithographic electroforming of ECM tools), was published. In the present work, we demonstrate how this method can also be used for copying ECM tools that were conventionally manufactured. A copy of an industrial PECM tool (precise electrochemical machining) was manufactured and used for the structural characterization and determination of the replication accuracy. The electroforming parameters like deposition conditions, bath composition as well as physical and chemical parameters were optimized for model systems. The inclusion of bath additives in the metal matrix during the deposition leads to micro-stresses, hence in this contribution, an alternative additive-free electrolyte was used. The accuracy of the process was investigated by means of confocal laser scanning microscopy. Average deviations of the structure depth and the lateral structure dimensions are in the range of 5 %.

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“…This tendency is more or less pronounced, according to the nature of the metal being deposited and deposition conditions. Recently, texture in non-metallic materials is attracting considerable interest because it is related to new properties and technological applications. Texture in ceramics was studied, mainly in hard magnetic materials, but also in high-temperature superconductors, ferroelectric, transformation-toughened ceramics and in surface layers of corrosive oxides (Bunge, 1991 (Pangarov, 1962); (ii) growth competition (Reddy, 1963) and (iii) inhibited deposition (Amblard et al, 1977). While the first two theories favour a free mode of growth, the latter favours a hindered growth and a strong interaction between the metallic surface and some chemical species capable of being adsorbed upon it.…”

Section: Introductionmentioning

confidence: 99%

“…metals in the following sequence: (1 1), (1 0 0), (1 0), (3 1) and (2 0) (Pangarov, 1962). For conditions of increasing potential, the theory of inhibited growth predicts the sequence: (1 0), (1 0 0) and (2 0) (Amblard et al, 1977 (Czerwinski et al, 1997c), which consisted of two major fibre components, (1 00) and (1 1), does not exactly agree with the texture predicted ( Fig. l(a)).…”

Section: Introductionmentioning

confidence: 99%

Texture in Metallic and CeramicFilms and Coatings

Czerwiński

Szpunar

1999

Texture, Stress, and Microstructure

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The properties of films and coatings can be optimized for a variety of applications by modifying their texture. Understanding how the texture in thin films is formed and how it can be controlled during film growth process is one of the most important areas of texture research. Several examples were selected to illustrate how the texture in films and coatings is developed and to explain how various properties of films are affected by texture. In particular, texture development during electrodeposition of Zn-based automobile coatings, Ni and Ni-based layers for magnetic recording as well as Fe and Fe-based wearresistant coatings, is presented. A new area of application oftexture research to control the high-temperature oxidation resistance of engineering materials is described. Using experimental data for Ni and Ti, the factors affecting texture formation during growth of ceramic oxides are discussed, with special attention paid to the role of substrate texture. The correlation between the oxide texture, grain boundary structure and diffusion of metal and oxygen ions at high temperatures, is considered.

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Origine des textures dans les depots electrolytiques de nickel

Cited by 85 publications

References 28 publications

EFFECT OF STIRRING RATE ON ELECTROCHEMICAL CODEPOSITION OF Ni-SiC COMPOSITE

EFFECT OF STIRRING RATE ON ELECTROCHEMICAL CODEPOSITION OF Ni-SiC COMPOSITE

Replication of microstructured tools for electrochemical machining applications

Texture in Metallic and CeramicFilms and Coatings

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