GB2016527A - Preparation of selective surfaces for high temperature solar energy collectors - Google Patents

Preparation of selective surfaces for high temperature solar energy collectors

Info

Publication number
GB2016527A
GB2016527A GB7903380A GB7903380A GB2016527A GB 2016527 A GB2016527 A GB 2016527A GB 7903380 A GB7903380 A GB 7903380A GB 7903380 A GB7903380 A GB 7903380A GB 2016527 A GB2016527 A GB 2016527A
Authority
GB
United Kingdom
Prior art keywords
metal
deposition
solar energy
high temperature
selective surfaces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7903380A
Other versions
GB2016527B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
European Atomic Energy Community Euratom
Original Assignee
European Atomic Energy Community Euratom
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by European Atomic Energy Community Euratom filed Critical European Atomic Energy Community Euratom
Publication of GB2016527A publication Critical patent/GB2016527A/en
Application granted granted Critical
Publication of GB2016527B publication Critical patent/GB2016527B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
    • F24S70/225—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption for spectrally selective absorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
    • F24S70/25—Coatings made of metallic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Abstract

Previous attempts to prepare selective surfaces suitable for use in high temperature solar energy collectors have included chemical vapour deposition of metals on to substrates. Such coated substrates have not been successful due to impurities in the coatings and to agglomeration due to auto-diffusion. These problems are alleviated by metal vapour thermal deposition of a layer of metal or alloy whose crystalline size is such that the surface contains holes whose mean diameter is of the same order of size as the wavelength band of visible light. The characteristics of the coating may be varied by varying the gaseous atmosphere e.g. air, oxygen, nitrogen, argon, gaseous hydrocarbon in which the deposition is performed and the speed e.g. 1 to 10 microns per minute and temperature e.g. 1500 DEG C to 2000 DEG C of vaporisation and deposition. Preferably the vaporised metal is kept out of contact with the substrate for a period of time after the metal has been melted, to avoid impurities which adversely affect the coating.
GB7903380A 1978-01-25 1979-01-31 Preparation of selective surfaces for high temperature solar energy collectors Expired GB2016527B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB307878 1978-01-25

Publications (2)

Publication Number Publication Date
GB2016527A true GB2016527A (en) 1979-09-26
GB2016527B GB2016527B (en) 1982-10-13

Family

ID=9751559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7903380A Expired GB2016527B (en) 1978-01-25 1979-01-31 Preparation of selective surfaces for high temperature solar energy collectors

Country Status (7)

Country Link
ES (1) ES477101A1 (en)
FR (1) FR2415669B1 (en)
GB (1) GB2016527B (en)
GR (1) GR73166B (en)
IL (1) IL56481A (en)
IT (1) IT1113750B (en)
PT (1) PT69113A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3308790A1 (en) * 1982-05-27 1983-12-01 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München SELECTIVE ABSORBING LAYER FOR SOLAR COLLECTORS AND METHOD FOR THE PRODUCTION THEREOF
GB2121443A (en) * 1982-05-27 1983-12-21 Maschf Augsburg Nuernberg Ag Chemical Vapour Deposition of selectively absorbent layer for use on solar collectors
GB2137334A (en) * 1980-04-07 1984-10-03 Western Electric Co Light-absorbing bodies
DE3447001A1 (en) * 1983-12-27 1985-09-12 Sharp K.K., Osaka Process for producing a humidity-permeable electrode for humidity sensors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3022714C2 (en) * 1980-06-18 1982-09-09 Bfg Glassgroup, Paris Process for producing a selectively absorbing coating for solar collectors and a coating produced therefrom
FR2492956A1 (en) * 1980-10-29 1982-04-30 Landex Ets Large-evacuated solar heat collector panel - formed by flat box with glass surfaces and contg. finned tube coated with heat absorbing substance such as black chromium

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE555277A (en) * 1956-02-27
GB978790A (en) * 1961-06-29 1964-12-23 Gen Electric Growth of metal fibers
US3692087A (en) * 1969-03-17 1972-09-19 Norton Co Metallic porous plates
FR2202264B1 (en) * 1972-10-06 1976-07-23 Agency Ind Science Techn
US4005698A (en) * 1974-10-18 1977-02-01 International Business Machines Corporation Photon energy converter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137334A (en) * 1980-04-07 1984-10-03 Western Electric Co Light-absorbing bodies
DE3308790A1 (en) * 1982-05-27 1983-12-01 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München SELECTIVE ABSORBING LAYER FOR SOLAR COLLECTORS AND METHOD FOR THE PRODUCTION THEREOF
GB2121443A (en) * 1982-05-27 1983-12-21 Maschf Augsburg Nuernberg Ag Chemical Vapour Deposition of selectively absorbent layer for use on solar collectors
DE3447001A1 (en) * 1983-12-27 1985-09-12 Sharp K.K., Osaka Process for producing a humidity-permeable electrode for humidity sensors

Also Published As

Publication number Publication date
GB2016527B (en) 1982-10-13
GR73166B (en) 1984-02-14
IT7947766A0 (en) 1979-01-24
IT1113750B (en) 1986-01-20
FR2415669A1 (en) 1979-08-24
PT69113A (en) 1979-02-01
ES477101A1 (en) 1980-02-01
IL56481A (en) 1983-11-30
FR2415669B1 (en) 1985-07-26
IL56481A0 (en) 1979-03-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee