HIGH-TEMPERATURE TESTING DEVICE FOR DETERMINING THE DEFORMATION OF HEAT-RESISTANT MATERIALS AND THEIR TEMPERATURE,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The object of the invention is a high temperature testing device for determining the deformation of heat-resistant materials and their temperatures consisting of a water cooled cylinder provided with a slotted type graphite heater and a vacuum pump. For the purpose of determining the different structural changes in the material on heating, a calibrating specimen with a known coefficient of expansion is used which is made up in such a way that through it the edges of the tested specimen, placed together in one plane with the edges of the calibrating specimen, are observed.