INVESTIGATION OF HIGH TEMPERATURE THERMAL EXPANSION DEVICES AND DESIGN OF A UNIT FOR USE WITH THERMAL IMAGE HEATING.
LEXINGTON LABS INC CAMBRIDGE MASS
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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