New Approach to Increase CNT Contents in Electrodeposited Ni-CNT Composite Thin Films by Modified Current Conditions

Akhtar Muhammad Shahrukh, Zhonglie An, Masaya Toda, Takahito Ono

Research output: Contribution to journalArticle

Abstract

In this paper, an electrodeposition method for nickel (Ni)-multiwalled carbon nanotubes (MWCNTs) composite thin films is presented. The composite film is deposited using an electrolyte in which MWCNTs are randomly dispersed. Two kinds of MWCNTs annealed at 1200 °C and 2600 °C were used for the electrodeposition using pulse or sine waveforms. An electrodeposition condition using CNT annealed at 1200 °C and sine waveform with maximum current 0.2 A and frequency 5.0 Hz results in a maximum CNT weight fraction of 5.4% in the composite film. The electrodeposited film with the maximum CNT content shows a microindentation hardness of 17.0 GPa, which is approximately 1.45 times greater than that of a pure Ni film. Moreover, mechanical strengthening is found in the composite films due to the addition of CNTs. This result shows that the electrodeposition for the Ni-MWCNT composite thin film with modified current condition would be applicable to microsystem, which requires micromechanical components with high mechanical strength.

Original languageEnglish
Article number7976352
Pages (from-to)931-938
Number of pages8
JournalIEEE Transactions on Nanotechnology
Volume16
Issue number6
DOIs
Publication statusPublished - 2017 Nov

Keywords

  • Electrodeposition
  • Ni-MWCNTs composite
  • indentation hardness
  • sine wave
  • weight percentage

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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