GB581132A - Improvements in or relating to ceramic articles and methods of making the same - Google Patents
Improvements in or relating to ceramic articles and methods of making the sameInfo
- Publication number
- GB581132A GB581132A GB513042A GB513042A GB581132A GB 581132 A GB581132 A GB 581132A GB 513042 A GB513042 A GB 513042A GB 513042 A GB513042 A GB 513042A GB 581132 A GB581132 A GB 581132A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alumina
- per cent
- relating
- making
- methods
- 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
Landscapes
- Silicon Compounds (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
Abstract
A dense, hard, ceramic article, exhibiting conchoidal fracture under impact, consists of 90 to 99 per cent. alumina 0.6 to 6 per cent silica, and 0.4 to 4 magnesia but without fluxing or bonding agents. The alumina &c., may be wet ground for 10 to 60 hours in a pebble or ball mill until the particles are, e.g., 0.8 to 50 microns in size and are substantially colloidal or mechanically hydrated; it is then filtered, dried at below 600 DEG C. and may be moistened, broken up or shaped as by a pugging mill &c. and fired at 1,200 to 1,600 DEG C. in an oxidizing, inert, or reducing atmosphere to produce articles or grains. The ceramic oxide should be substantially free from oxides of iron, titanium, and silicon as present in bauxite, but may be coloured by compounds of p vanadium, chromium or manganese, and the ground intermediate product may be used as a bonding agent for other ceramics. Reference has been directed by the Comptroller to Specification 551,421.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB513042A GB581132A (en) | 1942-04-17 | 1942-04-17 | Improvements in or relating to ceramic articles and methods of making the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB513042A GB581132A (en) | 1942-04-17 | 1942-04-17 | Improvements in or relating to ceramic articles and methods of making the same |
Publications (1)
Publication Number | Publication Date |
---|---|
GB581132A true GB581132A (en) | 1946-10-02 |
Family
ID=9790267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB513042A Expired GB581132A (en) | 1942-04-17 | 1942-04-17 | Improvements in or relating to ceramic articles and methods of making the same |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB581132A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3842403C1 (en) * | 1988-12-16 | 1990-01-18 | Radex-Heraklith Industriebeteiligungs Ag, Wien, At |
-
1942
- 1942-04-17 GB GB513042A patent/GB581132A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3842403C1 (en) * | 1988-12-16 | 1990-01-18 | Radex-Heraklith Industriebeteiligungs Ag, Wien, At |
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