Creep Behavior of an Oxide/Oxide Composite with Monazite Coating at Elevated Temperatures

Abstract

This study focuses on experimental investigation of stress-rupture behavior (creep response) of an oxide/oxide composite in a cross-ply (0/90) lay-up at elevated temperature. The test material, Nextel 610/monazite/alumina composite, employs monazite, an oxidation-resistant interfacial coating designed to improve performance at elevated temperatures. The experimental program included monotonic tensile tests to failure and creep-rupture tests at elevated temperatures. Tensile tests served to establish an ultimate tensile strength (UTS) for the material. The ensuing creep-rupture tests involved stress levels at varying percentages of the UTS. Stress-rupture curves at 900 and 1100 degrees C were established. A family of creep curves for various constant stress levels at 900 and 1100 degrees C was produced. Composite microstructure, as well as damage and failure mechanisms were also investigated.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2005
Accession Number
ADA433792

Entities

People

  • Sean S. Musil

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Ceramic Materials
  • Ceramic Matrix Composites
  • Chemical Reactions
  • Chemistry
  • Climate Change
  • Composite Material Fabrication
  • Composite Materials
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Modulus Of Elasticity
  • Polymer Matrix Composites
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials