Accession Number : AD0429180

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

Descriptive Note : Final rept.,

Corporate Author : LEXINGTON LABS INC CAMBRIDGE MASS

Personal Author(s) : Folweiler,Robert C. ; Schaffer,Philip S.

Report Date : 15 DEC 1963

Pagination or Media Count : 21

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)

Descriptors :   (*ELECTRIC ARCS, IMAGES), (*LABORATORY FURNACES, INSTRUMENTATION), THERMAL EXPANSION, OXIDES, ALUMINUM COMPOUNDS, ZIRCONIUM COMPOUNDS, HIGH TEMPERATURE, TRANSITION TEMPERATURE, XENON LAMPS, OPTICAL INSTRUMENTS, MICROMETERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE