High-selectivity moderate-high temperature solar selective absorption coating Ni-Mo composite powder and preparation method thereof
A composite powder, high-selectivity technology, used in coatings, metal material coating processes, metal processing equipment, etc., can solve problems such as poor thermal shock resistance and low bonding strength between magnetron sputtering coatings and substrates , to achieve the effect of low production cost, improved selective absorption effect and high efficiency
Inactive Publication Date: 2016-09-28
WUHAN UNIV OF TECH
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Abstract
The invention belongs to the field of functional coating preparation through thermal spraying and particularly relates to high-selectivity moderate-high temperature solar selective absorption coating Ni-Mo composite powder and a preparation method thereof. The Ni-Mo composite powder is formed by recombination of Ni powder and Ni-Mo shell-core composite powder. The mass ratio of Ni and Mo in the Ni-Mo composite powder is 7:3-8:2. The Ni-Mo shell-core composite powder is formed by recombination of Ni powder and Mo powder, and the Mo powder is partially wrapped by the Ni powder to form a shell-core structure. According to the high-selectivity moderate-high temperature solar selective absorption coating Ni-Mo composite powder and the preparation method thereof, Mo which is prone to oxidization is partially wrapped by Ni which is not prone to oxidization through a chemical plating method, so that the bare surface area, directly exposed in the oxidation environment, of Mo in the Ni-Mo composite powder and the oxidization content of Mo in the using process of the Ni-Mo composite powder are controlled. By applying the Ni-Mo composite powder to coating preparation, the selective absorption effect of the solar selective absorption coating can be effectively improved.
Application Domain
Molten spray coatingTransportation and packaging +2
Technology Topic
Chemical platingAbsorption effect +6
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