Electrodeposited nickel composite coating containing in-situ nickel impregnated alumina particles

In this paper, preparation of nickel composite coating containing in-situ impregnated alumina particles is reported for the first time. Nickel impregnation in alumina particles was realized during electrodeposition through the pores present in the alumina particles that acted as conduits. The impreg...

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Veröffentlicht in:Materials letters 2012, Vol.66 (1), p.141-143
Hauptverfasser: Singanahally ThippaReddy, Aruna, Vatiya Krishnamurthy, William Grips
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creator Singanahally ThippaReddy, Aruna
Vatiya Krishnamurthy, William Grips
description In this paper, preparation of nickel composite coating containing in-situ impregnated alumina particles is reported for the first time. Nickel impregnation in alumina particles was realized during electrodeposition through the pores present in the alumina particles that acted as conduits. The impregnation of Ni was confirmed by scanning electron microscopy and electron probe microanalysis. This study suggests that the use of porous particles may be a preferred route to improve the adhesion of particles and microhardness in electrodeposited metal matrix composites. [Display omitted] ► Electrodeposited Ni-composite coating containing in-situ Ni impregnated alumina. ► Ni impregnation in alumina particles through the pores present in the particles. ► Ni-Ni impregnated alumina composite coating exhibits improved microhardness. ► Use of porous particles will be a new route to improve the adhesion of particles.
doi_str_mv 10.1016/j.matlet.2011.08.065
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subjects Adhesion
Aluminum oxide
coatings
Composite coatings
Conduits
Electrodeposition
Impregnation
Nanocomposite
Nickel
Particulate composites
Porosity
Porous materials
scanning electron microscopy
title Electrodeposited nickel composite coating containing in-situ nickel impregnated alumina particles
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