GB1108450A - Improvements in and relating to the manufacture of glass articles - Google Patents
Improvements in and relating to the manufacture of glass articlesInfo
- Publication number
- GB1108450A GB1108450A GB2889565A GB2889565A GB1108450A GB 1108450 A GB1108450 A GB 1108450A GB 2889565 A GB2889565 A GB 2889565A GB 2889565 A GB2889565 A GB 2889565A GB 1108450 A GB1108450 A GB 1108450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- al2o3
- sio2
- li2o
- zro2
- crystals
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/10—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels to produce uniformly-coloured transparent products
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
A semi-crystalline glass article has a coefficient of expansion of not greater than 20 x 10-7/ DEG C. and comprises, as analytical components, SiO2, Al2O3, Li2O, a small amount of a nucleating agent which at least includes ZrO2 and from substantially 8 to 14% by weight of a fluxing agent which includes B2O3 and the metal oxides MgO and/or ZnO, the said article containing b -spodumene crystals of the Li2O, Al2O3, SiO2 system, these crystals being embodied in a glassy matrix comprising Al2O3, SiO2 and the fluxing agent. The glass is taken from the range SiO2 58 to 66, Al2O3 16 to 22, Li2O 2.5 to 5, B2O3 4-7, MgO and/or ZnO 3-7, and contains up to 4 TiO2 and 0.6, ZrO2 as nucleating agent. The glass is melted at 2800 DEG F. and conventionally formed into articles at 2200 DEG to 2500 DEG F. The ware is cooled and then reheated to 1600-1800 DEG F. for from 1 to 14 hours to allow for nucleation. The longer time is used for decorated ware. Articles made from the above composition by the above method contained 37.4% crystals (b -spodumene) and had a coefficient of expansion of 13 x 10-7/ DEG C. a typical composition of the glassy matrix remaining was SiO2 66.86, Al2O3 16.38, B2O3 9.72, MgO 6.00 and ZrO2 1.03.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38091964A | 1964-07-07 | 1964-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1108450A true GB1108450A (en) | 1968-04-03 |
Family
ID=23502963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2889565A Expired GB1108450A (en) | 1964-07-07 | 1965-07-07 | Improvements in and relating to the manufacture of glass articles |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE660893A (en) |
| DE (1) | DE1496054A1 (en) |
| GB (1) | GB1108450A (en) |
| LU (1) | LU48974A1 (en) |
| NL (1) | NL6503194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016211065A1 (en) | 2016-06-21 | 2017-12-21 | Schott Ag | Transparent, preferably colored glass ceramic article with low scattered light content and high strength, as well as processes for its preparation and its use |
-
1965
- 1965-03-10 BE BE660893D patent/BE660893A/xx unknown
- 1965-03-12 NL NL6503194A patent/NL6503194A/xx unknown
- 1965-05-26 DE DE19651496054 patent/DE1496054A1/en active Pending
- 1965-07-02 LU LU48974A patent/LU48974A1/xx unknown
- 1965-07-07 GB GB2889565A patent/GB1108450A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016211065A1 (en) | 2016-06-21 | 2017-12-21 | Schott Ag | Transparent, preferably colored glass ceramic article with low scattered light content and high strength, as well as processes for its preparation and its use |
| DE102016211065B4 (en) | 2016-06-21 | 2019-09-05 | Schott Ag | Transparent, preferably colored glass ceramic article with low scattered light content and high strength, as well as processes for its preparation and its use |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1496054A1 (en) | 1969-07-17 |
| LU48974A1 (en) | 1965-09-02 |
| BE660893A (en) | 1965-07-01 |
| NL6503194A (en) | 1966-01-10 |
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