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Applications of Ceramics for the Rotary Engine

  • Nobuo Sakate
  • Tsutomu Shimizu
  • Akihide Takami
Chapter

Abstract

To meet ever-stringent requirements for higher power and lower lubrication oil consumption on rotary engines, the wear resistance of apex seals and housing surfaces is a critical subject. The authors have been attempting to apply ceramic-based materials to these parts. Through the study on the material composition and production processes, the authors developed a ceramic material with high strength, high toughness and high wear resistance for the apex seals, which is silicon carbide whisker reinforced silicon nitride. As a result of the rig tests, the detonation gun spray of Cr3C2/Ni-Cr was found appropriate for the coating of side housings. In consideration of its potential productivity, the spray method was changed to the plasma spray method. The plasma sprayed Cr3C2/Ni-Cr showed the wear resistance equivalent to that of the detonation gun sprayed coating as a result of the optimization of material powder granulation and the spray conditions.

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References

  1. 1.
    Akihide Takami, Nobuo Sakate, Kouji Tarumoto, Masaru Takatou and Takahiro Higuchi, Fiber Reinforced Ceramics, Mazda Technical Review, No.8, 1990Google Scholar
  2. 2.
    Akihide Takami, Nobuo Sakate, Kouji Tarumoto, Masaru Takatou and Takahiro Higuchi, Development of Fiber Reinforced Ceramics for Automobile engine components, Proceedings of the 7th CIMTEC, 1990Google Scholar
  3. 3.
    Japan thermal spraying society, Spray Handbook, 1986Google Scholar
  4. 4.
    Tsutomu Shimizu and Yasufumi Kawado, Development of Plasma Cermet Coatings, Japan thermal spraying society proceedings of the 51th symposium, 1990Google Scholar

Copyright information

© Elsevier Science Publishers Ltd and MPA Stuttgart 1992

Authors and Affiliations

  • Nobuo Sakate
    • 1
  • Tsutomu Shimizu
    • 1
  • Akihide Takami
    • 1
  1. 1.Technical Research CenterMazda Motor CorporationAki-gun, HiroshimaJapan

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