Multilayer ceramic coating for corrosion (C3) resistance of nuclear fuel cladding

E. Alat, A. T. Motta, R. J. Comstock, J. M. Partezana, D. E. Wolfe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This research is an attempt to develop a nuclear fuel cladding that provides greater coping time in the case of a loss-of-coolant-accident. Corrosion tests were performed in static pure water at 360°C and saturation pressure (18.7 MPa) for up to 128 days. Multilayer TiN and TiAlN ceramic coatings were deposited onto ZIRLO® 1 substrates by cathodic arc physical vapor deposition. Initial results showed that the formation of non-protective boehmite phase can be avoided by application of an outer TiN barrier layer. The results also indicated that using a titanium bond coating between the ceramic coatings and ZIRLO® substrate aided in improving coating adhesion. When a specific coating architecture consisting of alternating Ti1-xAlxN and TiN ceramic layers along with a titanium bond coating interlayer was used, the corrosion performance was substantially improved. Post corrosion samples were examined using X-ray diffraction, optical microscopy, scanning electron microscopy, and energy dispersive X-ray spectroscopy.

Original languageEnglish (US)
Title of host publicationMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016
PublisherAssociation for Iron and Steel Technology, AISTECH
Pages175-182
Number of pages8
ISBN (Electronic)9781510833142
StatePublished - Jan 1 2016
EventMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016 - Salt Lake City, United States
Duration: Oct 23 2016Oct 27 2016

Publication series

NameMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016
Volume1

Other

OtherMaterials Science and Technology Conference and Exhibition 2016, MS and T 2016
CountryUnited States
CitySalt Lake City
Period10/23/1610/27/16

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)
  • Mechanics of Materials
  • Energy Engineering and Power Technology

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