Effect of Steam Environment on Creep Behavior of Nextel720/Alumina-Mullite Ceramic Matrix Composite at Elevated Temperature

Abstract

The tensile creep behavior of an oxide-oxide ceramic matrix composite (CMC) was investigated at 1000 and 1100 deg C in laboratory air and steam. The oxide-oxide CMC studied in this research was Nextel(trademark)720/alumina-mullite (N720/AM). The composite consists of N720/fibers with 0 deg/90 deg fiber orientation and a porous alumina-mullite matrix. Tensile-strain behavior was investigated and tensile properties measured at 900, 1000 and 1100 deg C. The effect of loading rate on tensile properties of N720/AM ceramic matrix composite at 1100 deg C in steam was also examined. Creep-rupture tests were performed at 1100 deg C in laboratory air and steam, and at 1000 deg C only in steam.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2009
Accession Number
ADA496689

Entities

People

  • Tolga Kutsal

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Ceramic Matrix Composites
  • Composite Materials
  • Electron Microscopes
  • Materials
  • Materials Laboratories
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Modulus Of Elasticity
  • Scanning Electron Microscopes
  • Silicon Carbide
  • Spacecraft
  • Stress Strain Relations
  • Tensile Properties
  • Tensile Strength
  • Turbines

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.