Titanium carbide-zirconium carbide high-temperature solar selective absorbing coating and preparation method thereof

A technology of absorbing coating and zirconium carbide, which is applied in the fields of titanium carbide-zirconium carbide high-temperature solar selective absorbing coating and its preparation, high-temperature solar selective absorbing coating and its preparation, and can solve the problem of optical performance degradation, failure, metal Particle oxidation, diffusion, agglomeration and other problems to achieve the effect of improving absorption rate, convenient operation and excellent high temperature stability

Active Publication Date: 2016-09-28
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for metal-ceramic composite systems, since the metal particles in the system are prone to oxidation, diffusion, and agglomeratio...

Method used

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  • Titanium carbide-zirconium carbide high-temperature solar selective absorbing coating and preparation method thereof
  • Titanium carbide-zirconium carbide high-temperature solar selective absorbing coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] A titanium carbide-zirconium carbide high-temperature solar selective absorption coating comprises a heat absorber base, an absorber layer and an anti-reflection layer from the bottom layer to the surface in sequence; the heat absorber base is a polished stainless steel sheet or a copper sheet. The absorbing layer material is a composite of titanium carbide and zirconium carbide, which is prepared by double-target co-sputtering, in which titanium carbide is prepared by DC magnetron sputtering, and zirconium carbide is prepared by radio frequency magnetron sputtering; the absorbing layer is composited The thickness of the material is 35 nm, and the atomic percentage of zirconium in the absorbing layer composite is 0.5%. The material of the anti-reflection layer is aluminum oxide, which is prepared by radio frequency magnetron sputtering, with a thickness of 60 nm.

[0022] The preparation method of the above-mentioned titanium carbide-zirconium carbide high temperature s...

Embodiment 2

[0028]A titanium carbide-zirconium carbide high-temperature solar selective absorption coating comprises a heat absorber base, an absorber layer and an anti-reflection layer from the bottom layer to the surface in sequence; the heat absorber base is a polished stainless steel sheet. The absorbing layer material is a composite of titanium carbide and zirconium carbide, which is prepared by double-target co-sputtering, in which titanium carbide is prepared by DC magnetron sputtering, and zirconium carbide is prepared by radio frequency magnetron sputtering; the absorbing layer is composited The thickness of the material is 80 nm, and the atomic percentage of zirconium in the absorbing layer composite is 3%. The material of the anti-reflection layer is aluminum oxide, which is prepared by radio frequency magnetron sputtering, with a thickness of 30 nm.

[0029] The preparation method of the above-mentioned titanium carbide-zirconium carbide high temperature solar energy selective...

Embodiment 3

[0035] A titanium carbide-zirconium carbide high-temperature solar selective absorption coating comprises a heat absorber base, an absorber layer and an anti-reflection layer from the bottom layer to the surface in sequence; the heat absorber base is a polished stainless steel sheet. The absorbing layer material is a composite of titanium carbide and zirconium carbide, which is prepared by double-target co-sputtering, in which titanium carbide is prepared by DC magnetron sputtering, and zirconium carbide is prepared by radio frequency magnetron sputtering; the absorbing layer is composited The thickness of the material is 55 nm, and the atomic percentage of zirconium in the absorbing layer composite is 0.83%. The material of the anti-reflection layer is aluminum oxide, which is prepared by radio frequency magnetron sputtering, with a thickness of 46 nm.

[0036] The preparation method of the above-mentioned titanium carbide-zirconium carbide high temperature solar energy selec...

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Abstract

The invention discloses a titanium carbide-zirconium carbide high-temperature solar selective absorbing coating and a preparation method thereof. The coating comprises a heat absorbing body substrate, an absorbing layer and an antireflection layer sequentially from the bottom layer to the surface. The material of the absorbing layer is a compound of titanium carbide and zirconium carbide, is prepared through double target co-sputtering and is 35-80 nm in thickness. The percentage of zirconium atoms in the compound is 0.5%-3%. The antireflection layer is aluminum oxide and 30-100 nm in thickness. The coating prepared through the preparation method is larger than or equal to 0.90% in absorptivity and smaller than or equal to 0.13 in emissivity under the condition of the atmospheric quality factor being AM 1.5. The coating has very good high-temperature stability and corrosion resistance. The coating provided by the invention has the characteristics of high absorptivity , low emissivity, good high-temperature stability and corrosion resistance and the like. According to the coating, the preparation process is simple, the source of raw materials is wide, the piece is low, operation is convenient, and control is easy. The coating has high practical value and wide application prospects in the fields of solar heat utilization and thermal power generation.

Description

technical field [0001] The invention belongs to the technical field of solar thermal power generation and vacuum coating, relates to a high-temperature solar energy selective absorption coating and a preparation method thereof, is one of the key technologies of solar thermal power generation at present, and specifically relates to a titanium carbide-zirconium carbide high-temperature solar energy selective coating Absorbent coating and method of making same. Background technique [0002] Solar thermal power generation technology refers to the use of large-scale arrays of parabolic or dish-shaped mirrors to collect solar heat, provide steam through heat exchange devices, and combine traditional turbogenerator technology to achieve the purpose of power generation. The use of solar thermal power generation technology avoids the expensive silicon crystal photoelectric conversion process, which can greatly reduce the cost of solar power generation. Moreover, this form of solar e...

Claims

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Application Information

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IPC IPC(8): C23C14/35C23C14/08C23C14/06C23C14/02F24J2/48
CPCY02E10/40C23C14/35C23C14/021C23C14/0635C23C14/081C23C14/352F24S70/25
Inventor 高祥虎刘刚郭志明耿庆芬马鹏军王爱勤
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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