FIELD: metallurgy.
SUBSTANCE: invention relates to making light absorbing coating and may be used in fabricating optoelectric devices, spacecraft passive thermal protective components, telescope shields and solar collectors. Proposed method comprises sequential operations of surface chemical preparation, application of nickel coating from solution containing nickel ions and hypophosphite ions, accompanied by darkening of producing coating in three stapes. First and third darkening steps are effected in etching solution containing nitric acid, orthophosphoric acid and acetic acid, while second step is performed in etching agent water solution containing cerium sulphate and hydrochloric acid.
EFFECT: surface with reflection factor of 0,1 - 0,25 % in light wave visible range (300 - 800 nm), controlled and reproducible process.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| LASER RADIATION ABSORBING COATING AND METHOD FOR PRODUCTION THEREOF | 2014 |
|
RU2615851C2 |
| METHOD OF FORMING LIGHT-ABSORBING COATING | 2014 |
|
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| METHOD OF PRODUCING A COATING WHICH ABSORBS LASER RADIATION AND A COMPOSITION FOR APPLYING IT | 2019 |
|
RU2708720C1 |
| METHOD OF FORMING LIGHT-ABSORBING COATING | 2014 |
|
RU2566905C1 |
| COMPOSITE METAL-DIAMOND COATING, METHOD OF ITS PRODUCTION, DIAMOND-CONTAINING ADDITIVE OF ELECTROLYTE AND METHOD OF ITS PRODUCTION | 2018 |
|
RU2699699C1 |
| METHOD OF MACHINING OF THE MONOCRYSTALLINE LANTHANUM-GALLIUM SILICATE SUBSTRATES | 2005 |
|
RU2301141C1 |
| SEMICONDUCTOR CHIP MANUFACTURING PROCESS | 1992 |
|
RU2012094C1 |
| COMPOSITE METAL-DIAMOND COATING, METHOD OF ITS PRODUCTION, DISPERSE SYSTEM FOR DEPOSITION OF COMPOSITE METAL-DIAMOND COATING AND METHOD FOR ITS PRODUCTION | 2019 |
|
RU2706931C1 |
| SEMICONDUCTOR CHIP MANUFACTURING PROCESS | 1992 |
|
RU2012095C1 |
| METHOD OF PRODUCING LIGHT-ABSORBING SILICON STRUCTURE | 2015 |
|
RU2600076C1 |
