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Si3N4 Composite Piston Cap for Adiabatic Engine

  • Jiemo Tian
  • Lingling Wang
  • Xiaohua Tong
  • Jianhua Zhou
  • Baoqing Zhang
Chapter

Abstract

Si3N4 composite piston cap is made of Si3N4 matrix adding Y2O3, TiC and A12O3. The microstructure of Si3N4 composite shows α —Si3N4 and whisker-like β —Si3N4 grains homogeneously distribute in the matrix. The second phase particles are spread in the α —Si3N4 grains. The reinforced mechanism of two phases is discussed. The Si3N4 composite piston cap has been worked for over 100 hrs at over 800 °C for 1500 r/min during the high or full power run without water cooling. Experimental results show two phases microstructure gives the high mechanical properties which can make the resistance to thermal shock and high temperature.

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References

  1. 1.
    D.A. Parker and G.M. Donnison, “The Development of An Air Gap Insulated Piston”, SAE 870652.Google Scholar
  2. 2.
    W. Bryzik. R. Kato, “Cummins/TACOM Adiabatic Engine Program” SAE 830314.Google Scholar
  3. 3.
    R. Kamo, W. Bryzik, “Cummins/TACOM Adranced Adiabatic Engine” SAE 840428.Google Scholar
  4. 4.
    R.M. Cole, A.C. Alkidas, “Evaluation of an Air-Gap Instulated Piston in Dividec-chamber diesel engine”. SAE 850359.Google Scholar
  5. 5.
    Osamis Kamigaito, “Ceramic Components for Engines in Japan”, SAE 870019.Google Scholar

Copyright information

© Elsevier Science Publishers Ltd and MPA Stuttgart 1992

Authors and Affiliations

  • Jiemo Tian
    • 1
  • Lingling Wang
    • 1
  • Xiaohua Tong
    • 1
  • Jianhua Zhou
    • 1
  • Baoqing Zhang
    • 1
  1. 1.Beijing Fine Ceramic Laboratory of Institute of Nuclear Energy TechnologyTsinghua UniversityBeijingChina

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