High Performance Brittle Matrices and Brittle Matrix Composites. Book 1

Abstract

The primary intent of this research was the development of composites having an acceptable combination of toughness and oxidation resistance. The research was closely coordinated with the DARPA/ONR URI program at UCSB concerned with high temperature, high performance composites. The study comprised three tasks. The first task was to study phase equilibria, solidification pathways and toughness properties of intermetallics, such as oxidation resistant Ti-Al-Ta and Nb-Al-Si alloys, and ceramics. These studies were then combined with interface interaction studies between the matrix microstructure and ductilizing/toughening particulates an fibers. The second task was a basic study of interface structure and chemistry as it relates to the mechanical properties of the interface. The third task involved studies on aluminum and copper matrix composites. These studies were concerned with developing an understanding of creep resistance. (JES)

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1989
Accession Number
ADA223273

Entities

People

  • Anthony G. Evans
  • Robert Mehrabian

Organizations

  • University of California, Santa Barbara

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Crystal Structure
  • Latent Heat
  • Materials
  • Materials Engineering
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Phase Diagrams
  • Solid Solutions
  • Tensile Strength
  • Thermodynamics
  • Transition Temperature

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Technical Research and Report Writing.