Growth of Large Monocrystals of Al2O3 by a Gradient Furnace Technique.

Abstract

A new technique, a gradient furnace technique, has been developed for the high-temperature growth of large monocrystals of Al2O3 from the melt. The technique employs a vacuum graphite resistance furnace with a helium-cooled tungsten/molybdenum heat exchanger protruding into it. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0739905

Entities

People

  • Dennis J. Viechnicki
  • Frederick Schmid

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Elements
  • Graphitic Materials
  • Group 6 Elements
  • Heat Exchangers
  • High Temperature
  • Isotherms
  • Metals
  • Molybdenum
  • Refractory Metals
  • Resistance
  • Single Crystals
  • Temperature Gradients
  • Transition Metals
  • Tungsten

Fields of Study

  • Materials science

Readers

  • Combustion and Flow Dynamics.
  • Semiconductor Device Technology
  • Surface Engineering/Surface Coating Technology.