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Laser Assisted Plasma Coating for Carbon Matrix Composites

  • S. Sasaki
  • H. Shimura
  • K. Hasegawa
  • K. Hirano
Chapter

Abstract

To improve the environmental resistance of C/C composite materials under high temperature conditions, we have designed a multi-functional layer coating system. This laser and plasma hybrid spraying method, which couples a high power CO2 laser with low pressure plasma spraying equipment, was developed to synthesize a highly dense and highly adhesive coating layer. Using this hybrid method, we succeeded in synthesizing a multi-functional coating system of Mo/W/WC — MoSi2 — ZrO2 on monolithic carbon in experimentally. The synthesized multi-layer coatings were stable at 1700°C in inert atmosphere. In oxidative conditions, the coatings were confirmed to be stable up to 1000°C minimum and they also survived five heat cycle tests of 500 to 1500°C under vacuum.

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References

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    Schmidt, Donald L.: “Carbon/Carbon Composites,” SAMPE J., May/June 1972, P.9.Google Scholar
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    Jortner. J: “Thermostructural Behavior of Carbon-Carbon Composites,” edited by Jortner. J, Booklet AD-II ASME 1986, P.1.Google Scholar
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    Fitzer, E. and Gkogkidis, A.: “Carbon-Fiber-Reinforced Carbon Composites Fabricated by Liquid Impregnation,” In Petroleum-Derived Carbons, edited by J.D. Bacha, ACS Symposium Series 303, ACS., 1986, P.346.Google Scholar
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    Witold, Kowbel:“ Graded-Codeposited ZrC-BN Coating for The Thermal Protection of Carbon-Carbon Composites,” Proc. of Ceramic Materials & Components for Engines, Edited by V.J. Tennery, 1988, P.290.Google Scholar

Copyright information

© Elsevier Science Publishers Ltd and MPA Stuttgart 1992

Authors and Affiliations

  • S. Sasaki
    • 1
  • H. Shimura
    • 1
  • K. Hasegawa
    • 2
  • K. Hirano
    • 3
  1. 1.Mechanical Engineering LaboratoryTsukuba, Ibaraki 305Japan
  2. 2.Kawasaki Steel Co.Kawasaki-cho, Chiba 260Japan
  3. 3.Nippon Steel Co.Nakahara-ku, Kanagawa 211Japan

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