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Your search keyword '"Chen, Baohui"' showing total 21 results
Start Over Author "Chen, Baohui" Publisher elsevier bv
21 results on '"Chen, Baohui"'

11. Structure, thermal stability and optical simulation of ZrB2 based spectrally selective solar absorber coatings

Author

Xiao-Ting Li, Chen Baohui, Xiao-Li Qiu, Wolfgang Theiss, Tian-Hong Zhou, Gang Liu, Xiang-Hu Gao, and Hui-Xia Guo

Subjects
Materials science, Renewable Energy, Sustainability and the Environment, Scanning electron microscope, business.industry, 02 engineering and technology, engineering.material, Sputter deposition, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, X-ray photoelectron spectroscopy, Coating, Absorptance, engineering, Optoelectronics, Thermal emittance, Thermal stability, Fourier transform infrared spectroscopy, 0210 nano-technology, business
Abstract

In the present work, a solar selective coating of ZrB2/Al2O3 was deposited onto stainless steel (SS) substrates using a magnetron sputtering system. The coating exhibited an good selective absorbing properties with an absorptance of 0.92 and an emittance of 0.11. To investigate the thermal stability of the coating, the samples were annealed at 500 °C and 600 °C for 100 h, respectively. Experimental results indicated that the coating was thermally stable at 500 °C. The structure and optical properties of the coating is also characterized using ultra-high resolution scanning electron microscope, UV–vis–NIR spectrophotometer, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS). The reflectance spectra of the SS/ZrB2/Al2O3 coating was successfully simulated by CODE software.

Published
2019
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12. Structure, thermal stability and chromaticity investigation of TiB2 based high temperature solar selective absorbing coatings

Author

Chen Baohui, Jia-Zheng Lu, Xiang-Hu Gao, Xiao-Ting Li, Xiao-Li Qiu, Tian-Hong Zhou, Hui-Xia Guo, and Gang Liu

Subjects
Materials science, Renewable Energy, Sustainability and the Environment, Scanning electron microscope, 020209 energy, Analytical chemistry, 02 engineering and technology, engineering.material, 021001 nanoscience & nanotechnology, Low emissivity, symbols.namesake, X-ray photoelectron spectroscopy, Coating, 0202 electrical engineering, electronic engineering, information engineering, symbols, engineering, General Materials Science, Thermal stability, Chromaticity, Fourier transform infrared spectroscopy, 0210 nano-technology, Raman spectroscopy
Abstract

Transition metal titanium diboride (TiB2) is a promising material for the solar selective absorbing coatings due to its favorable spectral selectivity and thermal stability. In this research, spectrally selective TiB2/Al2O3 tandem absorber is deposited on stainless steel (SS), which exhibits a high solar absorptance (αs = 0.93) and a low thermal emissivity (e = 0.11). In this tandem absorber, the TiB2 acts as the main absorber layer and the Al2O3 acts as an antireflection layer. The tandem absorber coating is systematically characterized by ultra-high resolution scanning electron microscope (SEM), UV–vis-NIR spectrophotometer, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and Micro-Raman techniques. The thermal stability in vacuum of the SS/TiB2/Al2O3 tandem absorber coatings is investigated in the temperature range of 400–800 °C for 2 h and 100 h, respectively. SEM and Raman spectra indicate that the change of surface morphology and chemical composition for the coating result in the degradation of optical performance. With the different annealed temperature, the SS/TiB2/Al2O3 tandem absorber coatings exhibit different color, which is further investigated using chromaticity diagram.

Published
2019
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