VAPOR PHASE GROWTH OF RUBY MONOCRYSTALS

Abstract

Improvements in apparatus and control of process parameters have led to the growth of a ruby weighing more than 200 grams. Several major limiting features of the process including furnace size, crystal purity, doping techniques, and pumping systems improved in conjunction with a continuing study of process parameters. A furnace construction technique was developed which did not limit furnace size. A four inch inside diameter furnace was constructed using this technique and has performed satisfactorily. In an investigation of doping techniques, additional sources of chromium vapor have been investigated, and chromyl chloride (CrO2Cl2) has proved to be satisfactory.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1967
Accession Number
AD0826770

Entities

People

  • Robert C. Folweiler

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Abstracts
  • Aluminum Oxides
  • Ceramic Materials
  • Chemical Vapor Deposition
  • Chromium
  • Contractors
  • Contracts
  • Cross Flow
  • Crystal Growth
  • Crystals
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Phase
  • Single Crystals
  • Vapor Deposition

Readers

  • Optical Physics and Photonics.
  • Semiconductor Device Technology
  • Surface Engineering/Surface Coating Technology.