Selective absorbing coating for fresnel solar thermal power generation and preparation method of selective absorbing coating

The invention relates to a selective absorbing coating for fresnel solar thermal power generation and a preparation method of the selective absorbing coating. Stainless steel is selected as a substrate material; the coating comprises a barrier layer, an infrared reflecting layer, an absorbing layer...

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Bibliographische Detailangaben
Hauptverfasser:	CUI YINFANG, WANG XUAN, ZHANG MIN, SUN SHOUJIAN, YIN WANLI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MECHANICAL ENGINEERING METALLURGY RANGES REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SOLAR HEAT COLLECTORS SOLAR HEAT SYSTEMS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a selective absorbing coating for fresnel solar thermal power generation and a preparation method of the selective absorbing coating. Stainless steel is selected as a substrate material; the coating comprises a barrier layer, an infrared reflecting layer, an absorbing layer and an anti-reflection layer from a substrate to the surface in sequence; the barrier layer consists of an oxide film which is generated by performing thermal treatment on the stainless steel substrate; the infrared reflecting layer consists of a Mo-Ni-SS alloy film; the absorbing layer comprises two sub-absorbing layer structures which are both Ni-SiO2 films and are a first sub-absorbing layer and a second sub-absorbing layer in sequence; and the anti-reflection layer is a double anti-reflection layer, which comprises a first anti-reflection layer TiO2 and a second anti-reflection layer SiO2 in sequence. The coating has the advantages of simple preparation process, selection and use of conventional materials, convenience in selection and control, high target material utilization rate and suitability for large-scale production.