FIELD: chemistry.
SUBSTANCE: method of making quartz containers with a protective carbon coating for high-temperature processes involves depositing a polymer film on the working surface of the quartz container, followed by annealing in an inert atmosphere. Said film is deposited on the working surface of the quartz container by depositing polyhexamethylene guanidine hydrochloride or polydiallyldimethylammonium chloride from its 7-10% aqueous solution with pH 1-3 and subsequent annealing in an inert atmosphere at 900-1000°C for 30-60 minutes.
EFFECT: improved quality of protective coatings on the surface of quartz containers owing to high density and strength thereof while preventing reaction molten material with working walls of a container of any shape and reduced contamination of the obtained material with diffusing chemical impurities from quartz.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF FABRICATION OF QUARTZ CONTAINERS | 2008 |
|
RU2370568C1 |
| DEVICE FOR APPLYING COATINGS ON ARTICLES,MAINLY QUARTZ ARTICLES | 0 |
|
SU1171441A1 |
| METHOD OF CARBON-BEARING COATING RECEIVING | 2008 |
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| 0 |
|
SU425862A1 | |
| PROCESS OF DEPOSITION OF PROTECTIVE COAT ON INTERNAL SURFACE OF BULB OF GASEOUS-DISCHARGE LAMP | 2001 |
|
RU2218630C2 |
| METHOD FOR MANUFACTURING A TWO-DIMENSIONALLY REINFORCED CARBON-CARBIDE COMPOSITE MATERIAL BASED ON A CARBON FIBROUS FILLER WITH A MIXED CARBON-CARBIDE MATRIX | 2021 |
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