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Synthesis and Performance Evaluation of Pulse Electrodeposited Ni-AlN Nanocomposite Coatings.


ABSTRACT: This research work presents the microscopic analysis of pulse electrodeposited Ni-AlN nanocomposite coatings using SEM and AFM techniques and their performance evaluation (mechanical and electrochemical) by employing nanoindentation and electrochemical methods. The Ni-AlN nanocomposite coatings were developed by pulse electrodeposition. The nickel matrix was reinforced with various amounts of AlN nanoparticles (3, 6, and 9?g/L) to develop Ni-AlN nanocomposite coatings. The effect of reinforcement concentration on structure, surface morphology, and mechanical and anticorrosion properties was studied. SEM and AFM analyses indicate that Ni-AlN nanocomposite coatings have dense, homogenous, and well-defined pyramid structure containing uniformly distributed AlN particles. A decent improvement in the corrosion protection performance is also observed by the addition of AlN particles to the nickel matrix. Corrosion current was reduced from 2.15 to 1.29??A?cm-2 by increasing the AlN particles concentration from 3 to 9?g/L. It has been observed that the properties of Ni-AlN nanocomposite coating are sensitive to the concentration of AlN nanoparticles used as reinforcement.

SUBMITTER: Ali K 

PROVIDER: S-EPMC5830284 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Synthesis and Performance Evaluation of Pulse Electrodeposited Ni-AlN Nanocomposite Coatings.

Ali Kamran K   Narayana Sivaprasad S   Shakoor R A RA   Okonkwo Paul C PC   Yusuf Moinuddin M MM   Alashraf Abdullah A   Kahraman Ramazan R  

Scanning 20180124


This research work presents the microscopic analysis of pulse electrodeposited Ni-AlN nanocomposite coatings using SEM and AFM techniques and their performance evaluation (mechanical and electrochemical) by employing nanoindentation and electrochemical methods. The Ni-AlN nanocomposite coatings were developed by pulse electrodeposition. The nickel matrix was reinforced with various amounts of AlN nanoparticles (3, 6, and 9 g/L) to develop Ni-AlN nanocomposite coatings. The effect of reinforcemen  ...[more]

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