The Optimization Formula Design of CuxZn1-xO Infrared Radiation Material and Coating Slurry

Infrared radiation material(IRM) is main content for coating slurry applied on the inner surface of industrial furnaces, which improve heat transfer and efficiency of furnaces can rise by 5%~30%. In this paper, the CuxZn1-xO infrared radiation material that can greatly improve the materials’ emissivity and the coating slurry were prepared. X-ray diffraction analysis, differential thermal analysis and scanning electron microscope-energy dispersive spectrum analysis indicate that the IRM was prepared successfully. The emissivity of three wavebands was measured. In order to obtain higher emissivity, optimization models were proposed and with calculation by Matlab software, the optimal molar content of CuO can be obtained as 3.6% in IRM and the optimal formula for coating slurry which includes IRM, dispersant, thickener and adhesive was obtained. The emissivity of the coating under the optimal formula was measured to be 0.965 and 0.958 in two main waveband which is in agreement with optimized calculation.