Chemical Mechanical Polishing of Nanocrystalline Diamond

Authors Organisations
  • Soumen Mandal(Author)
    Prifysgol Caerdydd | Cardiff University
  • Evan L. H. Thomas(Author)
    Prifysgol Caerdydd | Cardiff University
  • Jessica M. Werrell(Author)
    Prifysgol Caerdydd | Cardiff University
  • Georgina M. Klemencic(Author)
    Prifysgol Caerdydd | Cardiff University
  • Johnathan Ash(Author)
  • Emmanuel B. Brosseau(Author)
    Prifysgol Caerdydd | Cardiff University
  • Oliver A. Williams(Author)
    Prifysgol Caerdydd | Cardiff University
Type Chapter
Original languageEnglish
Title of host publicationNovel Aspects of Diamond
EditorsNianjun Yang
PublisherSpringer Nature
Pages53-89
Number of pages37
ISBN (Electronic)978-3-030-12469-4
ISBN (Print)978-3-030-12468-7, 3030124681
Publication statusE-pub ahead of print - 03 Apr 2019

Publication series

NameTopics in Applied Physics
Volume121
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Abstract

In this chapter the chemical mechanical polishing of nanocrystalline diamond film is presented. It is shown that it is possible to polish a superhard material like nanocrystalline diamond with a much softer material like silica. It has also been demonstrated that this technique can be used for removing polishing marks on single crystal diamond. Experiments with other oxides like ceria and alumina showed polishing action on nanocrystalline diamond films. Surface roughness reduction rate was found to be inversely proportional to the size of abrasive material. Addition of redox agents to the polishing slurry accelerated the roughness reduction of nanocrystalline diamond films. Based on the experimental results and theoretical studies by other groups we have proposed a polishing mechanism for chemical mechanical polishing of diamond. Lastly, we have applied this technique to study its effect on superconducting diamond films. It was found that even after 14 h of polishing, superconductivity in diamond remained unchanged

Keywords

  • chemical mechanical polishing, nanocrystalline diamond, singlecrystal diamond, boron doped diamond, SF1, size dependence, SUBA-X, superconductivity