Damping Characteristics of Metal Matrix Composites.

Abstract

Objectives of Present Research: Metal matrix composites (MMC) with enhanced material damping can be potential structural materials to improve significantly the stability, control and reliability of space structures. Objectives of this investigation are: - Identify the mechanisms and sources of damping in continuous fiber reinforced MMC (Gr/Al and Gr/Mg) using in situ characterization techniques. - Determine the role of microstructural parameters (fiber volume, fiber orientation, interfiber spacing, grain size, precipitate morphology) in damping. - Define the role of the fiber matrix interface in damping. - Develop high damping structural materials for space applications.

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Document Details

Document Type
Technical Report
Publication Date
Dec 09, 1987
Accession Number
ADA193144

Entities

People

  • Mohan S. Misra

Organizations

  • Martin Marietta

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Amplitude
  • Casting (Fabrication)
  • Centrifugal Casting
  • Composite Materials
  • Dislocations
  • Electron Microscopy
  • Emission
  • Grain Boundaries
  • Grain Size
  • Graphitic Materials
  • Heat Treatment
  • Materials
  • Metal Matrix Composites
  • Stresses
  • Transmission Electron Microscopy
  • Universities

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Reinforced Composite Materials

Technology Areas

  • Space