INVESTIGATION OF HIGH TEMPERATURE THERMAL EXPANSION DEVICES AND DESIGN OF A UNIT FOR USE WITH THERMAL IMAGE HEATING.

Abstract

The double clamshell arc imaging system has been successfully applied in a practical arrangement for physical property measurements. Thermal ex pansion measurements of alumina and zircon have been made to 1950 K (1670 C). An inflection in slope of the thermal expansion of zircon was observed at 1570 K indicating a possible phase transition previously unreported. Simple modifications (coating of mirrors) will provide higher temperatures (calculated at 2260 K). Electrical property measurements can be made in the fieldfree environment. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 15, 1963
Accession Number
AD0429180

Entities

People

  • Philip S. Schaffer
  • Robert C. Folweiler

Tags

DTIC Thesaurus Topics

  • Electrical Properties
  • Environment
  • High Temperature
  • Images
  • Measurement
  • Phase Transformations
  • Physical Properties
  • Thermal Expansion
  • Thermal Images
  • Transition Temperature
  • Transitions

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Surface Coatings Technology.
  • Thermal Physics or Thermal Science.