GB444532A - Improvements in methods of making ceramic bodies - Google Patents
Improvements in methods of making ceramic bodiesInfo
- Publication number
- GB444532A GB444532A GB20737/35A GB2073735A GB444532A GB 444532 A GB444532 A GB 444532A GB 20737/35 A GB20737/35 A GB 20737/35A GB 2073735 A GB2073735 A GB 2073735A GB 444532 A GB444532 A GB 444532A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- ceramic bodies
- schott
- silica
- small
- 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
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
444,532. Ceramic bodies. JENAER GLASWERK SCHOTT & GEN., Otto-Schott- Strasse, Jena, Germany. July 22, 1935, No. 20737. Convention date, Aug. 1, 1934. [Class 87 (i)] Ceramic bodies containing much silica and a small content of fusing means and having a very small coefficient of thermal expansion, are made by heating the shaped body to a temperature below fusing point but sufficient to frit the material, and then cooling rapidly to avoid crystallization. For large bodies, parts are made as described above and broken up into small pieces which are then moulded by means of an agglutinant to the form desired, and the body is treated again by fritting and rapid cooling. As an example, a body containing 95 per cent silica, 4À2 per cent alumina, and 0À8 per cent oxides of sodium, potassium, calcium, and magnesium is burnt at 1600‹ C. and cooled quickly. The expansion when reheated to 800‹ C. is 0À12 per cent, or about twice that of quartz glass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE444532X | 1934-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB444532A true GB444532A (en) | 1936-03-23 |
Family
ID=6536288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20737/35A Expired GB444532A (en) | 1934-08-01 | 1935-07-22 | Improvements in methods of making ceramic bodies |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB444532A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2933857A (en) * | 1958-12-15 | 1960-04-26 | Corning Glass Works | Method of making a semicrystalline ceramic body |
-
1935
- 1935-07-22 GB GB20737/35A patent/GB444532A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2933857A (en) * | 1958-12-15 | 1960-04-26 | Corning Glass Works | Method of making a semicrystalline ceramic body |
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