Interfaces in Inorganic Matrix Composites: Atomistic Simulation and Experiment.

Abstract

The objective of this research was to contribute to the design or structure and mechanical properties of ceramic and carbon materials, by applying atomistic simulation and experiment. In the research on carbon, methodology has been developed to construct amorphous carbon/graphite and graphite/graphite (twin) interfaces by using empirical potential function. Simulation observations have been validated by HRTEM and mechanical testing. In the research on silicon carbide, the extent to which beta-SiC ran be treated by a classical many-body potential function has been established. It has been also shown how stability analysis can be combined with MD simulation to achieve quantitative interpretation of the lattice deformation under an applied load. In the experimental study of interface strength, a method has been developed by using laser induced shock waves. It has been applied to model couples consisting of SiC and sapphire, with or without carbon interlayers. jg p.1

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1995
Accession Number
ADA300138

Entities

People

  • A. Isik
  • B. V. Chambers
  • J. A. Cornie
  • J. Megusar
  • S. Yip

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bulk Modulus
  • Ceramic Materials
  • Chemical Vapor Deposition
  • Composite Materials
  • First Principles Calculations
  • Materials
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Molecular Dynamics
  • Silicon Carbide
  • Surface Chemistry
  • Surface Properties

Readers

  • Computational Fluid Dynamics (CFD)
  • Reinforced Composite Materials
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy