High-Pressure Hot-Pressing of Silicon Nitride Powders

  • Svante Prochazka
  • William A. Rocco
Part of the Materials Science Research book series (MSR, volume 11)


Silicon nitride has been a prime candidate material for active components of future high temperature heat engines, particularly gas turbines. Its high temperature properties such as oxidation resistance, strength, creep and stress-rupture are critically dependent upon additives which are necessary for consolidation of Si3N4. powders by hot-pressing into pore free ceramics. Typical additions, MgO, Y2O3, ZrO2 at a few percent level, degrade high temperature properties severely.


Boron Nitride Silicon Nitride Atomic Mobility High Microhardness Excess Silicon 
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Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • Svante Prochazka
    • 1
  • William A. Rocco
    • 1
  1. 1.Corporate Research and Development CenterGeneral Electric CompanySchenectadyUSA

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