Solar selective absorbing coatings TiN/TiSiN/SiN prepared on stainless steel substrates

Feng, Junxiao; Zhang, Shuo; Liu, Xin; Yu, Huiping; Ding, Haicheng; Tian, Yun; Ouyang, Jun

doi:10.1016/j.vacuum.2015.08.013

Cited by 37 publications

(11 citation statements)

References 33 publications

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“…The low absorption of these coatings was probably due to the low thickness and density of the films. In contrast with Cheng et al, 35 Bera et al 5 and Feng et al 6 reported high absorptance of 0.949, 0.975, and 0.95, respectively. The high absorption of these coatings was probably due to the high thickness and high surface roughness, as well as the dispersion of the black base evenly through the matrix.…”

Section: Heat Absorption Of the Mwnts/lldpe Composite Coated On Cu Sheetmentioning

confidence: 74%

“…5 and Feng et al. 6 reported high absorptance of 0.949, 0.975, and 0.95, respectively. The high absorption of these coatings was probably due to the high thickness and high surface roughness, as well as the dispersion of the black base evenly through the matrix.…”

Section: Resultsmentioning

confidence: 98%

“…To improve the heat absorbing and heat transferring coefficients, the absorber plate needs to be maximized for surface roughness, thermal conductivity and density. [5][6][7][8][9][10] Moreover, the absorber is usually painted in black because a dark surface absorbs the thermal radiation better than a light colored surface. [11][12][13][14] In other words, the black surface reflects a lower amount of the thermal radiation.…”

Section: Introductionmentioning

confidence: 99%

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Solar heat absorbing coating from multi-walled carbon nanotube composites with linear low-density polyethylene-coated copper sheet

Boonphan

Singjai

2017

Journal of Reinforced Plastics and Composites

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This study aims to investigate the effects of multi-walled carbon nanotubes (MWNTs)/linear low density polyethylene composite-coated copper sheets on an energy conversion efficiency of a solar water heating system. Volume percentages of 1, 3 and 5 MWNTs were ball-mill mixed with linear low density polyethylene before using a hot press method to coat the composites. A bonding layer between the composites and the copper sheets was intercalated using MWNTs/polyvinyl butyral composites. The strength of the bonding layer was tested using a shear tension test. Microstructures of the composites were observed by scanning electron microscopy. The energy conversion efficiency and solar absorptance of the solar heat absorbing coatings were measured by a home-made method and ultraviolet visible spectroscopy, respectively. The results showed that the efficiency and the absorptance increased by 40% and 0.95, respectively with the increasing volume percentages of MWNTs up to 5 vol.% in linear low density polyethylene.

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Section: Heat Absorption Of the Mwnts/lldpe Composite Coated On Cu Sheetmentioning

confidence: 74%

Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Solar heat absorbing coating from multi-walled carbon nanotube composites with linear low-density polyethylene-coated copper sheet

Boonphan

Singjai

2017

Journal of Reinforced Plastics and Composites

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“…The ideal selective absorption coating should have the maximum solar absorptivity in the energy concentrated spectral range (300-2500 nm) and minimal thermal emissivity [1]. This characteristic can be expressed by solar selectivity ( S α ε = ) [13]. Figure 1 clearly shows the ideal solar selective absorption spectrum, black body radiation spectrum, actual solar selective absorption spectrum and solar radiation spectrum (AM1.5).…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Thermal Stability of Cu/TixSiyN/AlSiN Solar Selective Absorbing Coating

Zhang

et al. 2020

Materials

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An oxygen-free solar selective absorbing coating of Cu/TixSiyN/AlSiN was prepared on a Cu buffered stainless steel substrate by magnetron sputtering. This coating was prepared using a single target for each layer. A spectrophotometer, Fourier transform infrared spectrophotometer, scanning electron microscopy, X-ray diffractometer and atomic force microscopy were used to characterize the optical properties, crystalline structure, morphology and composition of these coatings. The coating of Cu/TixSiyN/AlSiN has good optical properties (average absorption of 0.941 and emittance of 0.058) and excellent thermal stability. The performance criterion (PC) is 0.0365, when the solar selective absorbing coating is heated in air at 200 °C for 1200 h.

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“…On the other hand, transition metal nitrides and oxynitrides based on structure are characterized by a good diffusion barrier, high resistance of oxidation and thermal stability [6,7,[9][10][11][12][13][14]. Several transition metals were already used, such as, Ti, Cr,W, Nb, Zr and Al [6,7,[9][10][11][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

The effect of increasing Si content in the absorber layers (CrAlSiNx/CrAlSiOyNx) of solar selective absorbers upon their selectivity and thermal stability

AL-Rjoub

Rebouta

Cunha

et al. 2019

Applied Surface Science

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In this work, the effect of increasing Si content in the absorber layers (CrAlSiN x /CrAlSiO y N x) of solar selective absorbers upon their selectivity and thermal stability are studied. The two optical stacks presented consist of four magnetron sputtered layers on stainless steel substrates. In both cases, tungsten is used as back-reflector, CrAlSi x N/CrAlSiO y N x as absorber layers with different Si/(Cr+Al+Si) atomic ratio (0.15 and 0.30, respectively) and finally the SiAlO x antireflection layer. The structures were theoretically designed by SCOUT software depended on experimental transmittance (T) and reflectance (R) of thin single layers deposited on glass substrates. It is observed that optical stack coatings with higher silicon content show better selectivity values, high solar absorptance, α= 95.9%, and low emissivity, ε= 9.7 % (calculated for 400 ºC), with higher thermal stability at 600 ºC in vacuum, for 650 h. Additionally, with the annealing at 600 ºC an increase of surface roughness was found, which was smaller for sample with higher Si content.

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Solar selective absorbing coatings TiN/TiSiN/SiN prepared on stainless steel substrates

Cited by 37 publications

References 33 publications

Solar heat absorbing coating from multi-walled carbon nanotube composites with linear low-density polyethylene-coated copper sheet

Solar heat absorbing coating from multi-walled carbon nanotube composites with linear low-density polyethylene-coated copper sheet

Microstructure and Thermal Stability of Cu/TixSiyN/AlSiN Solar Selective Absorbing Coating

The effect of increasing Si content in the absorber layers (CrAlSiNx/CrAlSiOyNx) of solar selective absorbers upon their selectivity and thermal stability

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