Effects of Surface-Chemical Reactions During Wet Milling of Alumina

Abstract

Wet ball milling was studied as a method of reducing highly aggregated alumina powders to an ultimate particle condition. The particulate structures in powders milled by various methods were determined by electron microscope examination and correlated with changes in compaction behavior, sinterability and microstructural uniformity of sintered compacts. Denser aggregates were formed in the wet-milled aluminas. These powders showed improved compaction behavior but sinter ability was reduced. Various experimental methods were used to wash the wet-milled powders. Optimum treatments yielded powders containing no dense aggregates and which showed improved processing behavior.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1972
Accession Number
AD0750399

Entities

People

  • Dale E. Niesz
  • Russell B. Bennett

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aluminum Oxides
  • Body Weight
  • Carbon Tetrachloride
  • Chemical Reactions
  • Citric Acid
  • Electron Microscopes
  • Electron Microscopy
  • Hydrochloric Acid
  • Hydroxides
  • Materials
  • Microscopes
  • Microscopy
  • Military Research
  • Particle Size
  • Particles
  • Scanning Electron Microscopes
  • Scanning Electron Microscopy

Fields of Study

  • Materials science

Readers

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

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene