A Study on the NF3 Plasma Etching Reaction with Cobalt Oxide Grown on Inconel Base Metal Surface View Full Text


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Article Info

DATE

2019-03-27

AUTHORS

Jaeyong Lee, Kyungmin Kim, Yong-Soo Kim

ABSTRACT

In this study, the reaction of NF3 gas plasma with cobalt oxide (Co3O4) film grown on the Inconel base metal surface was investigated. Experimental results showed the plasma etching rate as high as 3.36 μm/min at 350 °C under 220 W of plasma power with negative 300 DC bias voltage. AES and XPS analyses revealed that reaction product is CoF2, demonstrating that the plasma processing is a fluorination reaction. Based on the linear kinetics law, the activation energy of the etching reaction was derived to be 66.93 kJ/mol. This study demonstrates that the plasma decontamination technique can be applied to efficiently and effectively remove radioactive surface contaminants such as 60Co hiding in the oxide film on the surfaces of the metallic waste generated during decommissioning of old nuclear power plants. More... »

PAGES

1-15

References to SciGraph publications

  • 2008-10. Cold Plasma Processing and Plasma Chemistry of Metallic Cobalt Surface in PLASMA CHEMISTRY AND PLASMA PROCESSING
  • Identifiers

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    http://scigraph.springernature.com/pub.10.1007/s11090-019-09979-4

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    http://dx.doi.org/10.1007/s11090-019-09979-4

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