FR2115282A1 - Electrochemical ion exchange - for hardening of glass-ceramic using molten salt electrolyte - Google Patents
Electrochemical ion exchange - for hardening of glass-ceramic using molten salt electrolyteInfo
- Publication number
- FR2115282A1 FR2115282A1 FR7141503A FR7141503A FR2115282A1 FR 2115282 A1 FR2115282 A1 FR 2115282A1 FR 7141503 A FR7141503 A FR 7141503A FR 7141503 A FR7141503 A FR 7141503A FR 2115282 A1 FR2115282 A1 FR 2115282A1
- Authority
- FR
- France
- Prior art keywords
- ceramic
- glass
- article
- salt
- ion exchange
- 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.)
- Withdrawn
Links
- 150000003839 salts Chemical class 0.000 title abstract 8
- 239000002241 glass-ceramic Substances 0.000 title abstract 6
- 238000005342 ion exchange Methods 0.000 title abstract 2
- 239000003792 electrolyte Substances 0.000 title 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000005499 meniscus Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
Electrochemical ion exchange treatment of vitreous article esp. of glass ceramic in a molten salt bath in which (a) a negative lead is connected the glass-ceramic article, (b) the positive lead is connected to the salt bath (c) the article is placed in contact with the salt establishing at the surface a salt/glass ceramic/atmosphere tension such that the salt bath and the article constitute conductive elements (of a cell), (d) displacement of the salt bath or the article with respect to the other as to displace the meniscus in a predetermined manner on at least one part of the surface and (e) passage of a current across the salt into the glass ceramic to produce the can exchange in and across the glass ceramic.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9123070A | 1970-11-20 | 1970-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2115282A1 true FR2115282A1 (en) | 1972-07-07 |
Family
ID=22226711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7141503A Withdrawn FR2115282A1 (en) | 1970-11-20 | 1971-11-19 | Electrochemical ion exchange - for hardening of glass-ceramic using molten salt electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2115282A1 (en) |
-
1971
- 1971-11-19 FR FR7141503A patent/FR2115282A1/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |