SEDL / STP / STP844-EB / STP35238S

Dynamic and Static Fatigue of a Machinable Glass Ceramic

Magida, MB
Materials engineer and ceramics engineers, National Aeronautics and Space Administration Goddard Space Flight Center, Greenbelt, Md.

Forrest, KA
Materials engineer and ceramics engineers, National Aeronautics and Space Administration Goddard Space Flight Center, Greenbelt, Md.

Heslin, TM
Materials engineer and ceramics engineers, National Aeronautics and Space Administration Goddard Space Flight Center, Greenbelt, Md.

Pages: 14    Published: Jan 1984

Download this paper for $25 PDF (200K)          View License Agreement
Abstract

The dynamic and static fatigue behavior of a machinable glass ceramic was investigated to assess its susceptibility to stress corrosion-induced delayed failure. Fracture mechanics techniques were used to analyze the results so that lifetime predictions for components of this material could be made. The resistance to subcritical crack growth of this material was concluded to be only moderate and was found to be dependent on the size of its microstructure.