GB1375097A - - Google Patents
Info
- Publication number
- GB1375097A GB1375097A GB550572A GB550572A GB1375097A GB 1375097 A GB1375097 A GB 1375097A GB 550572 A GB550572 A GB 550572A GB 550572 A GB550572 A GB 550572A GB 1375097 A GB1375097 A GB 1375097A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- temperature
- zro
- tio
- feb
- 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
-
- 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
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/16—Halogen containing crystalline phase
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Ceramic Engineering (AREA)
- Glass Compositions (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
1375097 Strengthening glass-ceramics OWENS-ILLINOIS Inc 7 Feb 1972 [8 Feb 1971] 5505/72 Heading C1M A glass-ceramic article having a modulus of rupture of over 85,000 p.s.i. is obtained by contacting the surface of a lithium-containing glass ceramic at an elevated temperature with an ion-exchange material containing alkali metals having a larger ionic radius than the lithium ions. The glass ceramic comprises in percentage by weight SiO 2 60-75; Al 2 O 3 15-30; Si 2 O 3-5À5; F 2 0À2-0À8; Na 2 O+K 2 O 0-2; and TiO 2 +ZrO 2 2À5-10 wherein TiO 2 and ZrO 2 are present together and wherein the molar ratio R 2 O+RO : Al 2 O 3 is 0À95 to 0À5 where R 2 O is the total alkali metal oxide content and RO the total content of alkaline earth metal oxides plus zinc oxide. The glass ceramic is prepared by heating a thermally crystallizable glass at a temperature of 1800‹ to 2200‹ F. The ionexchange is carried out at a temperature of from 750‹ to 1000‹ F. for a period of ¢ to 8 hours. The ion-exchange material is preferably a molten salt such as sodium or potassium nitrate. Reference has been directed by the Comptroller to Specification 1,105,434.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11367671A | 1971-02-08 | 1971-02-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1375097A true GB1375097A (en) | 1974-11-27 |
Family
ID=22350848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB550572A Expired GB1375097A (en) | 1971-02-08 | 1972-02-07 |
Country Status (5)
Country | Link |
---|---|
CA (1) | CA989617A (en) |
DE (1) | DE2203675A1 (en) |
FR (1) | FR2124581B1 (en) |
GB (1) | GB1375097A (en) |
IT (1) | IT948445B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1236695A3 (en) * | 2001-03-02 | 2002-11-27 | Schott Glas | Glass ceramics |
US8043706B2 (en) | 2007-04-06 | 2011-10-25 | Ohara Inc. | Inorganic composition article |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1439341A (en) * | 1964-05-05 | 1966-05-20 | Corning Glass Works | Glass ceramic object, reinforced on its surface by ion exchange |
-
1972
- 1972-01-27 DE DE19722203675 patent/DE2203675A1/en active Pending
- 1972-02-04 IT IT4815472A patent/IT948445B/en active
- 1972-02-07 CA CA134,045A patent/CA989617A/en not_active Expired
- 1972-02-07 GB GB550572A patent/GB1375097A/en not_active Expired
- 1972-02-08 FR FR7204215A patent/FR2124581B1/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1236695A3 (en) * | 2001-03-02 | 2002-11-27 | Schott Glas | Glass ceramics |
US6673729B2 (en) | 2001-03-02 | 2004-01-06 | Schott Glas | Glass ceramic |
US8043706B2 (en) | 2007-04-06 | 2011-10-25 | Ohara Inc. | Inorganic composition article |
Also Published As
Publication number | Publication date |
---|---|
FR2124581A1 (en) | 1972-09-22 |
IT948445B (en) | 1973-05-30 |
CA989617A (en) | 1976-05-25 |
FR2124581B1 (en) | 1976-06-11 |
DE2203675A1 (en) | 1972-08-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |