Electrodeposition of Dispersion-Hardened Nickel-Al[sub 2]O[sub 3] Alloys

Sautter, F. K.

doi:10.1149/1.2425813

Cited by 120 publications

(40 citation statements)

References 1 publication

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“…Sautter [19] found that the volume percentage of A1203 particles in a nickel matrix increases, with increasing particle concentration in the bath. This behaviour was confirmed by further investigators for a wide range of metal particle systems [8,10,12,14,16,[20][21][22][23][24][25][26][27][28][29][30].…”

Section: Particle Concentration Type Shape and Sizementioning

confidence: 99%

Electrochemical codeposition of inert particles in a metallic matrix

1995

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A survey on electrochemical codeposition of inert particles in a metallic matrix is given. Particles held in suspension in an electroplating bath are codeposited with the metal during electrodeposition. The particles used are inert to the bath and can be of different types, that is, pure metals, ceramics or organic materials. Combining this variety of types of particles with the different electrodeposited metals, electrochemical codeposition enables the production of a large range of composite materials with unique properties. Many experimental factors were found to influence the codeposition process, which led to some understanding of the mechanism. Models to predict the codeposition rate were developed, but were only partly successful.

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Section: Particle Concentration Type Shape and Sizementioning

confidence: 99%

Electrochemical codeposition of inert particles in a metallic matrix

1995

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“…A commercially available electrolytic cell ͑Yamamoto-MS Co. Ltd., model I with internal dimensions of 65 ϫ 65 ϫ 95 mm͒ was used. The volume of the plating bath was 250 cm 3 . Both pure copper ͑JIS C1201P͒ and stainless steel ͑JIS SUS304͒ plates with exposed surface areas of 10 cm 2 (3 ϫ 3.33 cm͒ were used as substrates.…”

Section: Methodsmentioning

confidence: 99%

Carbon Nanofiber-Copper Composites Fabricated by Electroplating

Arai¹,

Endo²

2004

Electrochem. Solid-State Lett.

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Carbon nanofiber-copper composites are fabricated by composite plating techniques using a plating bath containing an effective dispersing agent for carbon nanofibers. Carbon nanofibers disperse uniformly in the copper matrix, as observed by surface and cross-sectional scanning electron microscopy. By changing electrodeposition parameters, composites with microstructures resembling sea urchins are obtained. Carbon nanotubes and nanofibers 1,2 have superior mechanical characteristics, including high tensile strength and elastic modulus, and superior thermal and electric conductivities. Research into practical applications of carbon nanotubes and nanofibers has been actively pursued, with metal composites containing such unique nanosized materials expected to become promising new materials with innovative functions. However, as carbon nanofibers and nanotubes have lower densities than metals, being 1.9-2.1 g cm Ϫ3 for carbon nanofibers and 1.3-1.4 g cm Ϫ3 for carbon nanotubes, uniformly dispersing nanosized carbon fillers in metal is expected to be difficult. In addition, high-temperature processes are required when melting the metals to produce carbon filler-metal composite. These melting temperatures are usually much higher than the oxidation point of carbon nanotubes and carbon nanofibers, making the use of metals with low melting points necessary. Furthermore, suppressing the formation of metal carbide at the interface between the nanosized filler and metal is important, as this may degrade the performance of the resultant composites.For this reason, attempts were made to develop a lowtemperature composite formation method that can even be used at room temperature. The formation of composite materials by electroplating, such as

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“…It has been found that alumina will codeposit with copper readily from a F '4 cyanide bath (23) but not from an acid ..w s sulphate bath (23,24,25). Hoorever, the same powder is reported to codeposit easily with nickel (23,26,27) and iron (28) Guglielmi (29) has claimetl that in nickel sulphamate electrolytes, codeposition of Bilicon carbide is increased by increase in current density but that of titania is decreased.…”

Section: Factors Affecting Particle Codepositionmentioning

confidence: 98%

Electrodeposited gold composite coatings

Larson¹

1984

Gold Bull

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The special properties exhibited by electrodeposited composite coatings have ensured industrial applications for them as a result of the high specification demands of modern technology. Recent advances in the understanding of the mechanism offormation of such coatings, including those involving gold matrices, and awareness of the properties of the latter, justify interest in theirpotential applications.The past two decades have seen a steady increase in our knowledge and understanding, and most importantly our application of composite coatings formed by electrodeposition from aqueous suspensions of inert particles. A number of systems have progressed to the stage of having become completely accepted in high-technology industrial applications. These have evolved largely as a result of the improved wear resistance characteristics imparted by the composite coatings. Such applications have included the incorporation of silicon carbide particles into nickel electrodeposits on the contacting faces of Wankel engine housings (1), and cobaltchromium carbide composite coatings for high-temperature dry slidingwear in gas-turbine aeroengines (2, 3, 4). E. C. Kedward (4) has reviewed research carried out in the field of electrodeposited composite coatings to 1973.It is, in fact, a measure of the understanding and appreciation of the properties which can be achieved by incorporating second phase particles into deposits that practical applications have also been found for electroless (autocatalytic) composite coatings. The inherent corrosion resistance of electroless nickel, its high hardness in the heat-treated form, and the fact that it can be deposited F. 1E éctbaal'yrnYdacoriteptohthe^reëpi [ ó eléctradcjwsitéd ldalumit a compo i6 s3 Au testrit t ttte hnene s of. he jarticírs.(0 02 n Sf arireterl n1y a''low`wIume perenu&e u. µhe camposite , 1s técuur^d to 0flpto crb4l

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Electrodeposition of Dispersion-Hardened Nickel-Al[sub 2]O[sub 3] Alloys

Cited by 120 publications

References 1 publication

Electrochemical codeposition of inert particles in a metallic matrix

Electrochemical codeposition of inert particles in a metallic matrix

Carbon Nanofiber-Copper Composites Fabricated by Electroplating

Electrodeposited gold composite coatings

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