Porosity Effects on the Elastic Constants of Five Varieties of Silicon Carbide Ceramic

Abstract

Silicon carbide is used in armor applications for its ballistic performance and relative low cost As such, many types of the material have been developed in an attempt to optimize its properties. The scope of this work encompasses a comparison of the static properties and microstructure of five different silicon carbide materials. Material elastic constants are determined through nondestructive test methods. Elemental composition, microstructure, and porosity effects of the materials are also examined. A model was employed to relate the porosity observed in the microstructure to the determined elastic constants. These results are also compared to a model based on the linear law of mixtures.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2001
Accession Number
ADA398991

Entities

People

  • Peter Bartkowski
  • Stephen Spletzer

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Carbides
  • Ceramic Materials
  • Compound Semiconductors
  • Elastic Waves
  • Engineering
  • Grain Size
  • Jet Propulsion
  • Materials
  • Measurement
  • Microstructure
  • Military Research
  • Modulus Of Elasticity
  • Porosity
  • Secondary Waves
  • Silicon Carbide
  • Test Methods
  • Ultrasounds

Fields of Study

  • Materials science

Readers

  • Computational Modeling and Simulation
  • Reinforced Composite Materials