Strength and Fracture Toughness of Silicon Carbide

  • Jochen Kriegesmann
  • Alfred Lipp
  • Klaus Reinmuth
  • Karl A. Schwetz
Part of the Army Materials Technology Conference Series book series (volume 1)


Flexural strength of four different grades of dense silicon carbide was measured at different temperatures. It could be demonstrated by scanning electron microscopy that strength remains constand up to high temperatures, if the fracture mechanism turns out to be transgranular. In the case of intergranular fracture the decrease of strength with temperature is governed by subcritical crack growth.

Static fracture toughness vs. temperature characteristics have also been determined. The static fracture toughness data at high temperatures are assumed to be dependent upon subcritical crack growth in the case of intergranular fracture mechanism.


Fracture Toughness Silicon Carbide Flexural Strength Boron Carbide Secondary Crack 
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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • Jochen Kriegesmann
    • 1
  • Alfred Lipp
    • 1
  • Klaus Reinmuth
    • 1
  • Karl A. Schwetz
    • 1
  1. 1.Elektroschmelzwerk Kempten GmbHMünchen 33Deutschland

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