Effect of Microwave Heating on Solid State Reactions of Ceramics,

Abstract

Solid state reaction studies were conducted on a zinc oxide-alumina system. Previous studies indicate the reaction kinetics of this system are diffusion controlled. Powder mixtures of similar particle sizes of reactants do not satisfy kinetic models either by conventional or microwave heating. With larger particle sizes of alumina, where reaction is limited by diffusion of zinc oxide through the product layer, microwave heating appears to enhance the reaction rate. An increase in compaction pressure results in an increase in the amount of product formed by conventional heating but shows a decrease in product formation with microwave heating.

Document Details

Document Type
Technical Report
Publication Date
Apr 27, 1992
Accession Number
ADP007774

Entities

People

  • David E. Clark
  • Iftikhar Ahmad

Organizations

  • University of Florida

Tags

DTIC Thesaurus Topics

  • Absorbers (Materials)
  • Advanced Materials
  • Chemical Kinetics
  • Diffusion
  • Engineered Materials
  • Kinetics
  • Materials
  • Materials Processing
  • Microwaves
  • Particle Size
  • Particles

Readers

  • Electronics Engineering
  • Rocket Propulsion.
  • Surface Engineering/Surface Coating Technology.