Preparation and Characterization of Alumina Based TiNn and SiCn Composites

Abstract

Ceramic composites containing 2 and 5vol % of nanosized commercially available TiN and SiC particles in alumina were prepared via a water based slurry processing route followed by spark plasma sintering (SPS) at 75 MPa in the temperature range 1200-1600 deg. C. Some of the samples could be fully densified by use of SPS already after five minutes at 1200 deg. C and 75 MPa. The aim was to control the alumina grain growth and thus obtain different nano-structure types. The microstructures have been correlated to some mechanical properties; e.g. hardness and fracture toughness.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2003
Accession Number
ADP014262

Entities

People

  • Annika Pohl
  • Mats Carlsson
  • Mats Johnsson

Organizations

  • Stockholm University

Tags

DTIC Thesaurus Topics

  • Acrylic Acid
  • Composite Materials
  • Grain Boundaries
  • Grain Growth
  • Hardness
  • Materials
  • Materials Processing
  • Materials Science
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Nanomaterials
  • Nanoparticles
  • Particle Size
  • Particles
  • Thermal Expansion
  • Toughness

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.