Could you please recommend a commercial company that can deposit selective coatings for high-temperature solar thermal receivers?
We are building a solar receiver and we are looking for a company that can deposit a selective coating for us
Thanks:)
Article Tandem structured spectrally selective coating layer of copp...
Guernsey Coating Laboratories, Inc. is a reliable source.
http://gclinc.com
In the business in 1982. It specializes in quality thin-films covering the wavelength range from ultraviolet to the near infrared.
Thanks for your reply. These are the criteria we are looking for:
1- Have a high absorptivity to radiation in the visible and near-infrared regions (0.3 to 2.5 um)
2- Have low emissivity in the far-infrared region (2.5 to 20 um)
3- Should be able to withstand operation in ambient air at around 500 C without oxidation
Can Guernsey Coating Laboratories handle these?
Thanks:)
@Abdul Ibrahim - Sorry if my answer was confusing. I an NOT affiliated with Guernsey Coating Laboratories. I just know they are a reliable source of optical coatings. You need to contact them: http://gclinc.com
Yeas Dear. I already contacted them. Thanks for letting me know about them. Thanks again. Abdelmaged
The following literature may be useful for your research
* Novel materials that are intrinsically solar selective: high α, low ε and stable in air and high temperatures for power towers
• Metal spinel oxides (AB2O4):– Inherently stable at high temperature and in
air– Amenable to doping and substitution (e.g.Ni2+, Mn2+ and Cu2+), to chemically tailortheir properties
• Refractory metal (M) silicides (MSi2), diborides (MB2), oxides nitrides and their ternary and quaternary compounds:– M = Ha, Ta, Ti, Y, or Zr – Intrinsic low UV-Vis-NIR reflectance high absorptance – Intrinsic high IR reflectance low emittance
Deposition methods: Thermal spray and Physical vapor deposition
Ref: High-Temperature Solar Selective Coating Development for Power Tower
Receivers by Cheryl Ghanbari
energy.gov/sites/prod/.../csp_review_meeting_042413_ambrosini.pdf
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