FACILITY FOR INVESTIGATIONS OF TOTAL HEMISPHERICAL EMISSIVITY OF HEAT PROTECTION MATERIALS AND THERMAL CONTROL COATINGS

摘要

This work is dedicated to an improvement of technique and modernization of experimental facility for the purpose of maximum temperature level increase in investigations of the total hemispherical emissivity of heat protection materials and thermal control coatings. Within the scope of the facility modernization, a new heater based on modern high-temperature materials and new measurement instruments for temperature and radiant heat flux measurements are developed. As a result of the conducted measures, the maximum temperature level of samples under study is increased from 1500 K up to 2000 K. A series of control tests are carried out. These tests verify the technique efficiency and operability of the modernized experimental facility in an extended temperature range.