Advertisement

Development and Characterization of Ceramic Turbine Components

  • P. W. Heitman
  • P. K. Khandelwal
Part of the Army Materials Technology Conference Series book series (volume 1)

Abstract

Polycrystalline silicon carbide and silicon nitride materials are currently being utilized in the development of ceramic hot flow-path components for vehicular and industrial gas turbine engines. The ultimate success of these efforts, as reflected in marketable products, is tied directly to the realization of consistent, reproducible properties in actual components. The current state-of-the-art of structural silicon base ceramics, while developing rapidly, is still judged to be in a state of infancy. At present, engineering ceramic materials, with sufficiently well-developed materials and process specifications, that meet component reliability goals are not available. Considering the susceptibility of silicon base ceramics to failure from flaws of the order of 100 microns or less in size, it is clear that new, sophisticated process control procedures, heretofore, not required in commercial applications, and new, highly sensitive, nondestructive evaluation (NDE) techniques must be developed.

Keywords

Silicon Nitride Ultrasonic Attenuation Photoacoustic Spectroscopy Photoacoustic Signal Burst Strength 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • P. W. Heitman
    • 1
  • P. K. Khandelwal
    • 1
  1. 1.Division of General Motors CorporationDetroit Diesel AllisonIndianapolisUSA

Personalised recommendations