High Emissivity of Ca2+/Fe3+-Doped LaAlO3 Based Ceramic Materials
High emissive Ca2+/Fe3+-doped LaAlO3 based ceramic materials were prepared by flame spraying and controlled crystallization method. The phase composition, microstructure, infrared optical properties of Ca2+/Fe3+-doped LaAlO3 based ceramic powders were investigated. The physical mechanism for the significantly enhanced infrared emissivity of LaAlO3 by doping with Ca2+ and Fe3+ was analysized. This high emissive Ca2+/Fe3+-doped LaAlO3 based ceramic materials shows promising applications in high temperature thermal process field to enhance the radiative heat transfer and improve its thermal efficiency.
Junichi Hojo, Tohru Sekino, Jian Feng Yang, Hyung Sun Kim and Wen Bin Cao
J. Liu et al., "High Emissivity of Ca2+/Fe3+-Doped LaAlO3 Based Ceramic Materials", Materials Science Forum, Vol. 922, pp. 74-79, 2018