Design, Fabrication, and Evaluation of GATORIZED (trade name) Ceramic-Wrought Alloy Attachment Concepts.

Abstract

The attachment of hot pressed silicon nitride material (HPSN) ceramic blades to a wrought superalloy disk, utilizing the GATORIZING forging process, was developed and demonstrated for application in small gas turbine engines. The development of this hybrid attachment concept consisted of fabricating, optimizing, and evaluating single ceramic blade/wrought alloy attachments by spin testing at ambient and elevated temperatures. The hybrid rotor concept was demonstrated by designing, fabricating, and spin testing several fully-bladed hybrid rotors, some containing ceramic simulated pseudoblades and others containing airfoil blades. The spin testing was conducted at speeds and temperatures comparable to small gas turbine engines. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA064597

Entities

People

  • B. H. Walker
  • S. A. Mcleod

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aluminum Oxides
  • Attachment
  • Bending Stress
  • Ceramic Materials
  • Fabrication
  • Failure Mode And Effect Analysis
  • Gas Turbines
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Materials Science
  • Mechanical Working
  • Mechanics
  • Stress Analysis
  • Tensile Strength
  • Test And Evaluation
  • Turbines

Fields of Study

  • Materials science
  • Physics

Readers

  • Aerospace Engineering
  • Powder metallurgy of Titanium alloys.
  • Reinforced Composite Materials