Investigation of the integral normal radiating power of materials in the high-temperature region using a reverberatory furnace

The present article discusses the experimental method and the construction of a unit for measurement of the integral normal radiating power of a broad class of solids using a URAN-1 reverberatory furnace. A description of the construction of the unit is given. In the interval $1300$–$2100^{\circ}$K data were obtained on the integral normal radiating capacity of niobium. The results of the investigation are compared with literature data.