Electrophoretic fabrication of thermal barrier coatings

R. Hashaikeh, J. A. Szpunar

Research output: Contribution to journalArticlepeer-review

Abstract

An electrochemical method of fabrication of (NiCoCrAlY)/MgO/yttria- stabilized zirconia (YSZ) multilayered coating was proposed. This multilayered coat is expected to work as a thermal barrier coating for nickel superalloy substrates. The (NiCoCrAlY) layer was deposited using the electrophoretic deposition technique, the MgO layer was deposited by the electrolytic deposition technique and the YSZ layer was electrophoretically deposited. The process of depositing (NiCoCrAlY) alloy particles revealed that the electrophoretic technique can be used for particles with submicron dimensions. The MgO intermediate layer was introduced to accommodate the difference in thermal expansion coefficient between the YSZ ceramic and the NiCoCrAlY metal layers.

Original languageEnglish (US)
Pages (from-to)161-169
Number of pages9
JournalJournal of Coatings Technology and Research
Volume8
Issue number2
DOIs
StatePublished - Mar 2011

Keywords

  • Bond coat
  • Ceramic coat
  • Electrolytic deposition
  • Electrophoretic deposition
  • Thermal barrier coatings

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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