Application of Ceramic Nozzles to 10kW Engine.

Abstract

This report covers work for application of ceramics to the nozzle section of the small radial MERADCOM 10kW gas turbine engine. Engine simulator tests of a HPSi3N4 ceramic-vane/superalloy-shroud nozzle for improved erosion resistance are described. Engine test results of the same nozzle are also documented. Engine simulator tests of a simplified all-ceramic nozzle section, including HPSi3n4 vanes and RBSi3N4 shrouds are also documented. Special glass adhesives for joining of ceramics are studied. Program results show thermal shock and corrosion resistance of ceramics to be adequate to meet operating environment of the engine. Erosion resistance of HPSi3N4 vanes has been shown to be one to two orders of magnitude superior to 713LC superalloy at 1700 F turbine inlet temperature. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1976
Accession Number
ADA035329

Entities

People

  • A. G. Metcalfe
  • J. C. Napier

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Ceramic Materials
  • Corrosion Resistance
  • Erosion Resistance
  • Fabrication
  • Gas Turbines
  • Heat Transfer
  • Joining
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Mechanical Working
  • Silicon Carbide
  • Tensile Strength
  • Test And Evaluation
  • Turbine Components
  • Turbines
  • Yield Strength

Readers

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