Changes in anodized titanium surface morphology by virtue of different unipolar DC pulse waveform

Inho Han, Jai Hyuk Choi, Bao Hong Zhao, Hong Koo Baik, In Seop Lee

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Various unipolar DC pulse waveforms were selected to find the factors for controlling of the anodized titanium surface morphology. The current density, frequency and duty were ranged from 50 mA/cm2 to 750 mA/cm2, from 100 Hz to 400 Hz and from 10% to 50%, respectively. Increase of duty from 10% to 50% at 100 Hz in 0.1 M KOH provides larger pores - from 0.13 μm to 0.19 μm in average for 50 mA/cm2 and 0.15 μm to 0.24 μm for 750 mA/cm2. On the other hand increase of frequency from 100 Hz to 400 Hz at 50% duty provides smaller pores - from 0.19 μm to 0.17 μm for 50 mA/cm2 and 0.24 μm to 0.17 μm for 750 mA/cm2. Both duty and frequency are important factors to control the anodized titanium surface morphology.

Original languageEnglish
Pages (from-to)5533-5536
Number of pages4
JournalSurface and Coatings Technology
Volume201
Issue number9-11 SPEC. ISS.
DOIs
Publication statusPublished - 2007 Feb 26

Fingerprint

Titanium
Surface morphology
waveforms
titanium
direct current
pulses
porosity
Current density
current density

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Han, Inho ; Choi, Jai Hyuk ; Zhao, Bao Hong ; Baik, Hong Koo ; Lee, In Seop. / Changes in anodized titanium surface morphology by virtue of different unipolar DC pulse waveform. In: Surface and Coatings Technology. 2007 ; Vol. 201, No. 9-11 SPEC. ISS. pp. 5533-5536.
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abstract = "Various unipolar DC pulse waveforms were selected to find the factors for controlling of the anodized titanium surface morphology. The current density, frequency and duty were ranged from 50 mA/cm2 to 750 mA/cm2, from 100 Hz to 400 Hz and from 10{\%} to 50{\%}, respectively. Increase of duty from 10{\%} to 50{\%} at 100 Hz in 0.1 M KOH provides larger pores - from 0.13 μm to 0.19 μm in average for 50 mA/cm2 and 0.15 μm to 0.24 μm for 750 mA/cm2. On the other hand increase of frequency from 100 Hz to 400 Hz at 50{\%} duty provides smaller pores - from 0.19 μm to 0.17 μm for 50 mA/cm2 and 0.24 μm to 0.17 μm for 750 mA/cm2. Both duty and frequency are important factors to control the anodized titanium surface morphology.",
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Changes in anodized titanium surface morphology by virtue of different unipolar DC pulse waveform. / Han, Inho; Choi, Jai Hyuk; Zhao, Bao Hong; Baik, Hong Koo; Lee, In Seop.

In: Surface and Coatings Technology, Vol. 201, No. 9-11 SPEC. ISS., 26.02.2007, p. 5533-5536.

Research output: Contribution to journalArticle

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AU - Han, Inho

AU - Choi, Jai Hyuk

AU - Zhao, Bao Hong

AU - Baik, Hong Koo

AU - Lee, In Seop

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