GB1380819A - Glass-cermic laminated articles - Google Patents
Glass-cermic laminated articlesInfo
- Publication number
- GB1380819A GB1380819A GB5120672A GB5120672A GB1380819A GB 1380819 A GB1380819 A GB 1380819A GB 5120672 A GB5120672 A GB 5120672A GB 5120672 A GB5120672 A GB 5120672A GB 1380819 A GB1380819 A GB 1380819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- surface layer
- core
- density
- crystallization
- 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
- 239000011521 glass Substances 0.000 abstract 10
- 239000011162 core material Substances 0.000 abstract 7
- 239000002344 surface layer Substances 0.000 abstract 7
- 239000002241 glass-ceramic Substances 0.000 abstract 5
- 238000002425 crystallisation Methods 0.000 abstract 4
- 230000008025 crystallization Effects 0.000 abstract 4
- 238000000280 densification Methods 0.000 abstract 2
- 238000005728 strengthening Methods 0.000 abstract 2
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 239000005340 laminated glass Substances 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 239000000463 material Substances 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
- 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
- C03C10/0018—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 containing SiO2, Al2O3 and monovalent metal oxide as main constituents
- C03C10/0027—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 containing SiO2, Al2O3 and monovalent metal oxide as main constituents containing SiO2, Al2O3, Li2O as main constituents
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/02—Forming molten glass coated with coloured layers; Forming molten glass of different compositions or layers; Forming molten glass comprising reinforcements or inserts
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
-
- 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
-
- 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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Glass Compositions (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
1380819 Glass-ceramic laminates CORNING GLASS WORKS 7 Nov 1972 [8 Nov 1971] 51206/72 Heading C1M A strengthened glass-ceramic laminated article comprises a glass-ceramic core of density D ef and a compressively-stressed glass or glassceramic surface layer of density D sf fused to and substantially enveloping the core, the core being formed by crystallization in situ of a crystallizable glass of density D ci and the surface layer by crystallization of a glass of density D si , the core and surface materials being chosen such that the value of the expression is positive. The article is formed by laminating a thermally-crystallizable glass core portion and a glass or crystallizable glass surface layer at a temperature above the softening point of one of the glasses, and heat treating the laminated glass article at a temperature and for a time sufficient to crystallize the crystallizable glass portions, but insufficient to allow complete stress relaxation in the surface. The strengthening is primarily caused by differential densification on crystallization, but some strengthening may result from thermal expansion mismatch, as the core material preferably has an expansion coefficient at least equal to that of the surface layer before and after crystallization. Preferably the surface layer crystallizes at a lower temperature and higher viscosity than the core. Preferably the percent densification differential (D), defined by is at least 0À5%, more preferably 1-5%. Where the surface layer is of non-crystallizable glass or certain glass-ceramics D sf = D si (i.e. there is no density change in the surface layer).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19659371A | 1971-11-08 | 1971-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1380819A true GB1380819A (en) | 1975-01-15 |
Family
ID=22726021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5120672A Expired GB1380819A (en) | 1971-11-08 | 1972-11-07 | Glass-cermic laminated articles |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS553300B2 (en) |
| AU (1) | AU465939B2 (en) |
| BE (1) | BE791041A (en) |
| CA (1) | CA981022A (en) |
| DE (1) | DE2254118C3 (en) |
| FR (1) | FR2159300B1 (en) |
| GB (1) | GB1380819A (en) |
| IT (1) | IT970215B (en) |
| NL (1) | NL7215029A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2212800A (en) * | 1987-10-06 | 1989-08-02 | Univ Sheffield | Method of coating articles |
| EP2903821B1 (en) * | 2012-10-04 | 2019-08-28 | Corning Incorporated | Laminated glass article with ceramic phase and method of making the article |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110698059B (en) * | 2012-10-04 | 2022-07-29 | 康宁股份有限公司 | Compressive stressed laminated glass articles made from photosensitive glass and methods of making the same |
| JP6026926B2 (en) * | 2012-11-16 | 2016-11-16 | 株式会社オハラ | Crystallized glass and crystallized glass substrate for information recording medium |
| US20160114564A1 (en) * | 2013-06-14 | 2016-04-28 | Corning Incorporated | Laminated glass article with scratch resistant surface |
| WO2016028625A1 (en) * | 2014-08-21 | 2016-02-25 | Corning Incorporated | Methods for preventing blisters in laminated glass articles and laminated glass articles formed therefrom |
-
1972
- 1972-10-30 CA CA155,139A patent/CA981022A/en not_active Expired
- 1972-10-30 AU AU48298/72A patent/AU465939B2/en not_active Expired
- 1972-11-01 JP JP10895072A patent/JPS553300B2/ja not_active Expired
- 1972-11-03 IT IT3129172A patent/IT970215B/en active
- 1972-11-04 DE DE19722254118 patent/DE2254118C3/en not_active Expired
- 1972-11-06 FR FR7239165A patent/FR2159300B1/fr not_active Expired
- 1972-11-07 NL NL7215029A patent/NL7215029A/xx unknown
- 1972-11-07 BE BE791041D patent/BE791041A/en not_active IP Right Cessation
- 1972-11-07 GB GB5120672A patent/GB1380819A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2212800A (en) * | 1987-10-06 | 1989-08-02 | Univ Sheffield | Method of coating articles |
| EP2903821B1 (en) * | 2012-10-04 | 2019-08-28 | Corning Incorporated | Laminated glass article with ceramic phase and method of making the article |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2159300B1 (en) | 1980-04-04 |
| AU4829872A (en) | 1974-05-02 |
| JPS553300B2 (en) | 1980-01-24 |
| BE791041A (en) | 1973-05-07 |
| NL7215029A (en) | 1973-05-10 |
| CA981022A (en) | 1976-01-06 |
| AU465939B2 (en) | 1975-10-09 |
| DE2254118B2 (en) | 1980-11-13 |
| DE2254118A1 (en) | 1973-05-10 |
| DE2254118C3 (en) | 1981-10-01 |
| JPS4855211A (en) | 1973-08-03 |
| IT970215B (en) | 1974-04-10 |
| FR2159300A1 (en) | 1973-06-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |