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Medium-high temperature spectrum selective absorbing coating

An absorbing coating and selective technology, which is applied in coatings, metal material coating processes, layered products, etc., can solve the problems of poor thermal stability of coatings, achieve good thermal stability, high absorption-emission ratio, and work The effect of high temperature

Active Publication Date: 2013-03-06
桑普能源科技有限公司
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a medium-high temperature spectrally selective absorption coating to overcome the poor thermal stability of the existing coatings and cannot meet the defects of working under medium-high temperature conditions

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Embodiment Construction

[0018] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] Such as figure 1 , figure 2 As shown, the medium-high temperature spectrally selective absorption coating provided in this embodiment includes five layers of films, which are the substrate bonding layer, infrared reflection layer, passivation layer, first absorption layer, and second absorption layer from inside to outside. and optical antireflection layer. The medium-high temperature spectrum selective absorption coating provided by the present invention can work in a medium-high temperature environment, and has high photothermal conversion rate, good thermal stability, high working temperature (>500°C), and high absorption-emission ratio (with a high UV-visibl...

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Abstract

The invention relates to the field of spectrum selective absorbing coatings, in particular to a medium-high temperature spectrum selective absorbing coating which comprises five layers of films, including a base bonding layer, an infrared reflecting layer, a passivation layer, a first absorbing layer, a second absorbing layer and an optical antireflection layer in sequence from the inside out. The first and second absorbing layers are both metal ceramic complex films, and the volume percent of the metal compositions in the first absorbing layer is greater than the volume percent of the metal compositions in the second absorbing layer. The medium-high temperature spectrum selective absorbing coating provided by the invention can work under medium and high temperature and has high light-heat conversion efficiency, good thermal stability, high working temperature and high absorptivity-emissivity ratio.

Description

technical field [0001] The invention relates to the field of a spectral selective absorption coating, in particular to a medium-high temperature spectral selective absorption coating. Background technique [0002] In recent years, with the increasingly acute energy problems, the solar thermal utilization industry has achieved unprecedented development. In solar thermal utilization, spectrally selective absorbing coatings have always been a research topic of interest at home and abroad. Current research mainly focuses on how to improve the conversion efficiency of light and heat and the thermal stability of coatings. At present, the preparation of this kind of coating at home and abroad mainly relies on multi-target magnetron sputtering coating technology. This is because the film coated by magnetron sputtering technology has the advantages of controllable nanostructure and uniform particles, which greatly improves the film quality and film quality. performance. However, th...

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Application Information

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IPC IPC(8): F24J2/48B32B33/00C23C14/06C23C14/35
CPCY02E10/40F24S70/30
Inventor 王轩张敏尹万里崔银芳孙守建朱敦智
Owner 桑普能源科技有限公司
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