KINETICS OF INITIAL SINTERING OF VACUUM-REDUCED TITANIUM DIOXIDE

Abstract

OBSERVATIONS OF SPHERE-TO-PLATE BONDING OF VACUUM-REDUCED, MONOCRYSTALLINE RUTILE WERE CARRIED OUT OVER THE TEMPERATURE RANGE 1200 TO 1275 C. The rate law governing the interfacial growth between sphere and plate indicat d that the predominate mechanism of material transport in this sintering process was volume diffusion. In the light of the reasonably satisfactory agreement between the oxygen self-diffusion coefficients calculated from the pr sent sintering data and those directly observed by Haul and Just utilizing an isotopic exchange technique, it was indicated that oxygen ion diffusion is the ratedetermining step in the sintering experiments described.

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1961
Accession Number
AD0269923

Entities

People

  • D.h. Whitmore
  • Toshihiko Kawai

Organizations

  • Northwestern University

Tags

DTIC Thesaurus Topics

  • Agreements
  • Coefficients
  • Diffusion
  • Diffusion Coefficient
  • Dioxides
  • Elements
  • Films
  • Kinetics
  • Materials
  • Observation
  • Oxygen
  • Sintering
  • Titanium
  • Titanium Dioxide
  • Transport Ships

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Materials Science and Engineering.