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Effects of Sodium Sulfate Induced Corrosion on the Static Fatigue Life of Silicon Nitride Containing Different Dopants

  • Jeffrey J. Swab
  • Gary L. Leatherman
Chapter

Abstract

Flexure testing was used to determine the effects of sodium sulfateinduced corrosion on the static fatigue life of two silicon nitride ceramics at 1000°C. The results show that the static fatigue life of the MgO-doped silicon nitride is significantly reduced when Na2SO4 is introduced. Conversely, the static fatigue life of the Y2O3 + A1203- doped silicon nitride is increased in the presence of Na2SO4.

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Copyright information

© Elsevier Science Publishers Ltd and MPA Stuttgart 1992

Authors and Affiliations

  • Jeffrey J. Swab
    • 1
  • Gary L. Leatherman
    • 2
  1. 1.U.S. Army Materials Technology LaboratoryWatertownUSA
  2. 2.Worcester Polytechnic InstituteWorcesterUSA

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