Electrically insulative performances of ceramic and clay films deposited via supersonic spraying

Woo Young Kim, Dae Ho Yang, Suk Goo Yoon, Jong Gun Lee

Research output: Contribution to conferencePaperpeer-review


Supersonic spray coating techniques were applied to deposit ceramic and clay particles as films for use in electrical insulation. TiO 2 and Al 2 O 3 ceramics were aerosol-deposited under vacuum while kaolinite, montmorillonite, and bentonite clays were deposited by cold spraying in open air. The electrical resistances of Al 2 O 3 and TiO 2 were ~10 5 and ~10 4 W, respectively. The resistances of kaolinite and montmorillonite were ~10 10 W. Bentonite showed the lowest electrical resistance of ~10 7 W among the clays because of the high cation exchange capacity of the material. The film surface morphologies and mechanical properties in the form of hardness and scratchability were also investigated.

Original languageEnglish
Publication statusPublished - 2016 Jan 1
Event36th FISITA World Automotive Congress, 2016 - Busan, Korea, Republic of
Duration: 2016 Sept 262016 Sept 30


Other36th FISITA World Automotive Congress, 2016
Country/TerritoryKorea, Republic of


  • Aerosol deposition
  • Ceramic
  • Clays
  • Cold spray
  • Electrical resistance

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality


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