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Effect of Electrodeposition Method on Ni/SiC Composite Coating
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
Abstract [en]

Abstract

The work attempts to find out the effects of current parameters on particle codeposition and microhardness of composite coatings. Also, it uses pulse reverse current in increasing nanoparticle content and microhardness.

Two different coating layers, Ni and Ni/SiC, were electroplated on brass substrate using four different electroplating parameters. However, a group of the parameters have failed to produce successful coating. After plating, the origin samples are cut into small pieces to test different characteristics.

The small samples from corner of the origin one were mounted and taken thickness measurements. The samples from center were taken to measure microhardness and content of nanoparticles. To find out reason of failed samples, a Pourbaix diagram was calculated afterward.

The average content of SiC nanoparticles of each sample doesn’t have much differences but the samples using pulse reverse current have a uniform distribution. A higher microhardness is achieved by pulse current.

Keywords

Composite electroplating, Ni/SiC, Content of nanoparticle, Microhardness

Place, publisher, year, edition, pages
2016.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hj:diva-31862ISRN: JU-JTH-PRU-2-20160057OAI: oai:DiVA.org:hj-31862DiVA: diva2:974121
Subject / course
JTH, Product Development
Available from: 2016-09-27 Created: 2016-09-24 Last updated: 2016-09-27Bibliographically approved

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Engineering and Technology

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CiteExportLink to record
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Citation style
  • apa
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