Xu-Yao SONG, Wei DONG, Yi-Jie PAN, Zun-Dong YUAN, Xiao-Feng LU. The infrared spectral emissivity measurement of a graphite material in a high temperature range of 1000~1500℃ using integrated blackbody principle[J]. Journal of Infrared and Millimeter Waves, 2021, 40(2): 204