Synthesis and characterization of doped and undoped nano-columnar DLC coating

Foo Jin Hoe, Tatsuhiko Aizawa, Satoru Yukawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Amorphous carbon (a-C:H/a-C) or Diamond-like carbon (DLC), has a very high potential diverse engineering and medical application for high wear resistance and tribological performance. Naturally grown columnar DLC films were chemically modified by post-treatment via electron beam irradiation (EB-irradiation). Precise observation and characterization is carried out by field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), and Raman spectroscopy. This nano-columnar a-C:H film has a unique nano-structure and mechanical properties which composed of graphitic inter-columnar network with amorphous carbon columns. Metallic doping into the inter-columns reflects positively on mechanical response by chemical modification with physical hardening.

Original languageEnglish
Pages (from-to)17-24
Number of pages8
JournalJurnal Teknologi (Sciences and Engineering)
Issue number1
Publication statusPublished - 2013 May


  • AFM
  • Doping
  • EB-irradiation
  • FE-SEM
  • Nano-columnar DLC
  • Raman spectroscopy

ASJC Scopus subject areas

  • Engineering(all)


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