A Characterization System for Ceramic Powders

Abstract

The grant was initiated on April 1, 2001. We have purchased a laser particle size analyzer, a powder surface area analyzer, a mercury powder pore size analyzer, and an ultracentrifuge for powder separation. These instruments have all been installed and in operation. We have proceeded with powder and green body characterization of the bulk silicon nitride and SiAlONs. This includes the study of the effect of seeding with micrometer-sized crystals on a-SiAlON microstructure, the development of ceramic cellular composites by green body deformation, and infiltration of C-N precursors into reaction bonded silicon nitride, and the development of alpha-SiAlON ceramics with machinability and low glass content.

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 2003
Accession Number
ADA417937

Entities

People

  • I-wei Chen

Organizations

  • University of Pennsylvania

Tags

Communities of Interest

  • Advanced Electronics
  • Human Systems

DTIC Thesaurus Topics

  • Advanced Materials
  • Air Force
  • Ceramic Materials
  • Ceramic Matrix Composites
  • Composite Materials
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Oxidation
  • Oxidation Resistance
  • Particle Size
  • Resistance
  • Structural Ceramics
  • Technical Ceramics

Readers

  • Aerosol Science/Aerosol Physics
  • Powder metallurgy of Titanium alloys.
  • Research Science/Academic Research

Technology Areas

  • Directed Energy