GB917388A - A method of treating glass to increase the tensile strength thereof and glass so treated - Google Patents
A method of treating glass to increase the tensile strength thereof and glass so treatedInfo
- Publication number
- GB917388A GB917388A GB3871761A GB3871761A GB917388A GB 917388 A GB917388 A GB 917388A GB 3871761 A GB3871761 A GB 3871761A GB 3871761 A GB3871761 A GB 3871761A GB 917388 A GB917388 A GB 917388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- alkali metal
- metal ions
- tensile strength
- salt
- 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.)
- Expired
Links
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
- C03C21/002—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 to perform ion-exchange between alkali ions
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)
- Glass Compositions (AREA)
Abstract
917,388. Strengthening glassware. RESEARCH CORPORATION. Oct. 30, 1961 [Nov. 15, 1960], No. 38717/61. Class 56. The tensile strength of glass is increased by immersing the glass in a substantially anhydrous fluid bath containing alkali metal ions of greater ionic diameter than the alkali metal ions in the glass, at a temperature not exceeding the strain point of the glass, until a substantial portion of the alkali metal ions in the surface layer of the glass have been replaced by alkali metal ions of greater diameter. In an example, a soda lime glass was immersed in molten KNO 3 at 350‹ C. for 16 hours. Other salts mentioned are NaNO 3 , KSCN, K 2 S 2 O 7 , RbNO 3 and CsNO 3 . The bath may be a melt or a solution of a salt in a non-aqueous solvent, such as acetamide, in which the salt will ionize. Mixtures of salts may be used to reduce the melting-point particularly if one of the components of the mixture is a di- or trivalent metal that cannot diffuse into the glass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6925160A | 1960-11-15 | 1960-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB917388A true GB917388A (en) | 1963-02-06 |
Family
ID=22087708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3871761A Expired GB917388A (en) | 1960-11-15 | 1961-10-30 | A method of treating glass to increase the tensile strength thereof and glass so treated |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE754450Q (en) |
| DE (1) | DE1421926B2 (en) |
| GB (1) | GB917388A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807980A (en) * | 1967-04-24 | 1974-04-30 | M Boffe | Diffusion methods and treating mediums for improving the properties of materials |
| GB2329382A (en) * | 1997-09-23 | 1999-03-24 | Glaverbel | Chemical treatment of vitreous material |
| US9718728B1 (en) | 2016-01-20 | 2017-08-01 | International Business Machines Corporation | Chemically strengthened glass and methods of making same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007009786B4 (en) * | 2007-02-27 | 2013-09-05 | Schott Ag | Coated toughened glass, process for its manufacture and its use |
-
0
- BE BE754450D patent/BE754450Q/en active
-
1961
- 1961-10-30 GB GB3871761A patent/GB917388A/en not_active Expired
- 1961-11-11 DE DE19611421926 patent/DE1421926B2/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3807980A (en) * | 1967-04-24 | 1974-04-30 | M Boffe | Diffusion methods and treating mediums for improving the properties of materials |
| GB2329382A (en) * | 1997-09-23 | 1999-03-24 | Glaverbel | Chemical treatment of vitreous material |
| US9718728B1 (en) | 2016-01-20 | 2017-08-01 | International Business Machines Corporation | Chemically strengthened glass and methods of making same |
| US9890075B2 (en) | 2016-01-20 | 2018-02-13 | International Business Machines Corporation | Chemically strengthened glass and methods of making same |
| US10112867B2 (en) | 2016-01-20 | 2018-10-30 | International Business Machines Corporation | Chemically strengthened glass and methods of making same |
| US10633280B2 (en) | 2016-01-20 | 2020-04-28 | International Business Machines Corporation | Chemically strengthened glass and methods of making same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1421926B2 (en) | 1971-11-25 |
| DE1421926A1 (en) | 1968-11-14 |
| BE754450Q (en) | 1971-01-18 |
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