In air durability study of solar selective coating for parabolic trough technology

Raccurt, Olivier; Matino, Francesca; Disdier, Angela; Braillon, Julien; Stollo, A.; Bourdon, Delphine; Maccari, A.

doi:10.1063/1.4984504

Cited by 15 publications

(13 citation statements)

References 10 publications

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“…In [14] Du et al reported thermal stability in air up to 400°C for 192 h of an Al/Ti . 5 Al .5 N/Ti . 25 Al .75 N/AlN solar selective coating deposited on stainless steel (SS) by magnetron sputtering (MS).…”

Section: Introductionmentioning

confidence: 99%

“…In the 90's, the International Energy Agency (IEA) in Task X of the Solar Heating and Cooling (SHC) program developed a procedure to simulate the expected service lifetime of the coating over 25 years for low temperature applications (T < 300°C) [2]. In recent literature [3][4][5], the performance criterion (PC), based on changes in absorptance (∆α) and emittance (∆ε )…”

Section: Introductionmentioning

confidence: 99%

“…This criterion has been found to describe reasonably the ageing of the coatings in many applications [3][4][5][6] and it was evaluated that a T maximum performance decrease of 5% could be acceptable [7]. Based in this procedure a European service life predication standard EN 12975-3-1 (2011) was developed by the European Committee for Standardization [8].…”

Section: Introductionmentioning

confidence: 99%

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Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature

Galindo

Guillén

Heras

et al. 2018

Solar Energy Materials and Solar Cells

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The durability of two solar-selective aluminium titanium oxynitride multilayer coatings was studied under conditions simulating realistic operation of central receiver power plants. The coatings were deposited by cathodic vacuum arc applying an optimized design concept for complete solar-selective coating (SSC) stacks. Compositional, structural and optical characterization of initial and final stacks was performed by scanning electron microscopy, elastic recoil detection, UV-Vis-NIR-IR spectrophotometry and X-Ray diffraction. The design concept of the solar selective coatings was validated by an excellent agreement between simulated and initial experimental stacking order, composition and optical properties.Both SSC stacks were stable in single stage tests of 12 h at 650°C. At 800°C, they underwent a structural transformation by full oxidation and they lost their solar selectivity. During cyclic durability tests, multilayer 1, comprised of TiN, Al .64 Ti .36 N and an Al 1.37 Ti .54 O top layer, fulfilled the performance criterion (PC) ≤ 5% for 300 symmetric, 3 h long cycles at 600°C in air. Multilayer 2, which was constituted of four Al y Ti 1-y (O x N 1-x ) layers, met the performance criterion for 250 cycles (750 h), but was more sensitive to these harsh conditions. With regard to the degradation mechanisms, the coarser microstructure of multilayer 1 is more resistant against oxidation than multilayer 2 with its graded oxygen content. These results confirm that the designed SSCs based on Al y Ti 1-y (O x N 1-x ) materials withstand breakdown at 600°C in air. Therefore, they can be an exciting candidate material for concentrated solar power applications at high temperature.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature

Galindo

Guillén

Heras

et al. 2018

Solar Energy Materials and Solar Cells

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show abstract

“…Nowadays, stability in air at high temperatures for SSCs is one of the main targets for the CSP community. 6 Typically, efficient spectral selectivity is obtained in stacks comprising multilayers with precise control of their nanometric thickness to obtain an adequate interference pattern to achieve an abrupt transition from high absorption at the UV−vis to high reflectance at the IR region. 2,3 The absorber materials are placed between a metallic substrate (IR-mirror) and covered by an antireflective (AR) layer to get the gradual change of refractive index to obtain the desired reflectance.…”

Section: Introductionmentioning

confidence: 99%

“…30 Finally, thermal aging tests in air at temperatures up to 500 °C have been recently reported for SSCs from the Archimede Solar Energy company, exhibiting stability up to 450 °C after 3000 h and degradation after 1000 h at 500 °C. 6 On the other hand, research on AR layers with multifunctional properties becomes of fundamental importance to develop high temperature air stable SSCs. For instance, a self-assembled nanostructured AlN AR-layer on Al-AlN based SSC showing enhancement of light absorption, temperature resistance in air at 250 °C, and hydrophobicity has been reported.…”

Section: Introductionmentioning

confidence: 99%

Role of Al₂O₃ Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

Céspedes

Rodríguez-Palomo

Salas‐Colera

et al. 2018

ACS Appl. Energy Mater.

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Enhancing the stability of spectrally selective coatings (SSC) at high temperatures in air is necessary to push the concentrated solar power (CSP) technology to the next level. To avoid failures that might not be discovered for years, advanced knowledge of the chemical properties related to the degradation mechanisms with temperature is required. For this purpose, the Mo local environment is investigated here for Mo−Si 3 N 4 and MoSi 2 − Si 3 N 4 nanocomposites SSCs. The atomic short-range order around Mo proves that MoSi 2 is the stable form that appears in high temperature vacuum annealing and that MoO 3 formation is associated with optical degradation in air annealing. Deposition of Al 2 O 3 capping layers with different techniques is found of paramount relevance in the long term performance of MoSi 2 −Si 3 N 4 based SSCs. MoSi 2 −Si 3 N 4 hybrid composite with Al 2 O 3 capping layer shows exceptional functional stability even after 2900 h at 600 °C in air. Antireflective Al 2 O 3 layer synthesized by atomic layer deposition (ALD) shows an extraordinarily efficient protection against oxidation with unprecedented MoSi 2 stability in MoSi 2 −Si 3 N 4 hybrid composite, and optimum long-term optical performance. On the other hand, Al 2 O 3 layer deposited by sputtering blocks the formation of detrimental MoO 3 at 600 °C but allows the formation of MoO 2 in MoSi 2 −Si 3 N 4 for long annealing times which, however, also provides excellent and stable optical functionality related to MoO 2 high stability. KEYWORDS: spectrally selective coating (SSC), concentrated solar power (CSP), solar selective absorbers, high temperature air stability, MoSi 2 −Si 3 N 4 nanocomposite, Al 2 O 3 capping layer, aging

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Materials for Concentrated Solar Power

Soum‐Glaude

Grosjean

2022

Concentrating Solar Thermal Energy

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In air durability study of solar selective coating for parabolic trough technology

Cited by 15 publications

References 10 publications

Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature

Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature

Role of Al₂O₃ Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

Materials for Concentrated Solar Power

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In air durability study of solar selective coating for parabolic trough technology

Cited by 15 publications

References 10 publications

Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature

Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature

Role of Al2O3 Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature

Materials for Concentrated Solar Power

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Role of Al₂O₃ Antireflective Layer on the Exceptional Durability of Mo–Si–N-Based Spectrally Selective Coatings in Air at High Temperature