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Wavelength selective radiator coating applied to thermophotovoltaic power generation device and preparation method
The invention discloses a wavelength selective radiator coating applied to a thermophotovoltaic power generation device and a preparation method of the wavelength selective radiator coating. Firstly, erbium oxide powder and aluminum oxide powder are uniformly mixed, then mixed powder is obtained, grinding balls, a ball-milling liquid, the mixed powder and a dispersing agent are added to a ball-milling tank for ball milling, and uniformly dispersed slurry is obtained; the grinding balls in the slurry are filtered out, the ball-milling liquid in the slurry is dried, and dry powder is obtained; the dry powder is put in a high-temperature atmosphere furnace and heated, so that the erbium oxide powder and the aluminum oxide powder in the dry powder are sintered to form composite powder, the grinding balls, a binding agent and a diluent are added to the composite powder, the mixture is subjected to ball milling, the uniformly mixed slurry after ball-milling is dried, and then a die can be used for coating a substrate material; after the coated substrate material is dried and sintered at a high temperature, the wavelength selective radiator coating is formed and obtained. The mechanical performance and the surface strength of the coating are improved, the thermal stability of a coating radiator is improved, and the defect that the coating cannot be bonded to a ceramic substrate easily is overcome.
Wavelength selective radiator coating applied to thermophotovoltaic power generation device and preparation method
The invention discloses a wavelength selective radiator coating applied to a thermophotovoltaic power generation device and a preparation method of the wavelength selective radiator coating. Firstly, erbium oxide powder and aluminum oxide powder are uniformly mixed, then mixed powder is obtained, grinding balls, a ball-milling liquid, the mixed powder and a dispersing agent are added to a ball-milling tank for ball milling, and uniformly dispersed slurry is obtained; the grinding balls in the slurry are filtered out, the ball-milling liquid in the slurry is dried, and dry powder is obtained; the dry powder is put in a high-temperature atmosphere furnace and heated, so that the erbium oxide powder and the aluminum oxide powder in the dry powder are sintered to form composite powder, the grinding balls, a binding agent and a diluent are added to the composite powder, the mixture is subjected to ball milling, the uniformly mixed slurry after ball-milling is dried, and then a die can be used for coating a substrate material; after the coated substrate material is dried and sintered at a high temperature, the wavelength selective radiator coating is formed and obtained. The mechanical performance and the surface strength of the coating are improved, the thermal stability of a coating radiator is improved, and the defect that the coating cannot be bonded to a ceramic substrate easily is overcome.
Wavelength selective radiator coating applied to thermophotovoltaic power generation device and preparation method
TAN HONG (author) / LIU TING (author) / HAN YUGE (author) / XUAN YIMIN (author) / CHEN XUE (author)
2015-12-16
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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