Interfacial Studies of Whisker and Coated Fiber Reinforced Ceramic Matrix Composites

Abstract

The objectives of this program are to characterize the interfacial region in a variety of whisker and coated fiber reinforced glass ceramic matrix composites, and to study how the structure, chemistry, and bonding characteristics of the interface influence composite properties such as strength, toughness, and environmental and thermal stability. During the past year, efforts in the whisker composite area were focused on the investigation of whisker coatings such as carbon and BN on LAS glass ceramic matrix composite properties, fabrication and characterization of calcium aluminosicicate (CAS) matrix/SiC whisker composites, high resolution TEM studies of a variety of techniques, and the evaluation of SiC platelets as an alternate reinforcement to whiskers. Efforts in the coated fiber area were focused on the evaluation of yttria and BN coated NICALON fibers from General Atomics. Results of these studies are presented. Keywords: Ceramic composite interfaces, Whisker reinforced glass ceramics, LAS matrix SiC whisker composites, Coated fiber, Glass ceramic composites.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1990
Accession Number
ADA226020

Entities

People

  • John K Brennan

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical

DTIC Thesaurus Topics

  • Ceramic Materials
  • Ceramic Matrix Composites
  • Chemical Vapor Deposition
  • Chemistry
  • Composite Material Fabrication
  • Composite Materials
  • Fabrication
  • High Resolution
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Silicon Carbide
  • Whisker Composites

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials