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Chemical mechanical polishing of nanocrystalline diamond

Mandal, Soumen, Thomas, Evan L. H., Werrell, Jessica M., Klemencic, Georgina M., Ash, Johnathan, Brousseau, Emmanuel B. and Williams, Oliver A. 2019. Chemical mechanical polishing of nanocrystalline diamond. In: Yang, Nianjun ed. Novel Aspects of Diamond: From Growth to Applications, Vol. 121. Topics in Applied Physics, Chem: Springer, pp. 53-89. (10.1007/978-3-030-12469-4_3)

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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.

Item Type: Book Section
Date Type: Published Online
Status: Published
Schools: Physics and Astronomy
Engineering
Publisher: Springer
ISBN: 9783030124687
ISSN: 0303-4216
Last Modified: 30 Nov 2019 05:29
URI: http://orca.cf.ac.uk/id/eprint/122259

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