GB575318A - Improvements in or relating to silicon carbide compositions - Google Patents
Improvements in or relating to silicon carbide compositionsInfo
- Publication number
- GB575318A GB575318A GB706143A GB706143A GB575318A GB 575318 A GB575318 A GB 575318A GB 706143 A GB706143 A GB 706143A GB 706143 A GB706143 A GB 706143A GB 575318 A GB575318 A GB 575318A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicon carbide
- parts
- per cent
- barium
- mixture
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
Abstract
A refractory article resistant to oxidation comprises silicon carbide and a bond containing a barium compound. The barium may be introduced as carbonate, nitrate, chloride, sulphate or silicofluoride. Small amounts of clay, feldspar or other substances may be incorporated with the barium compound. The article may contain 80-92 per cent silicon carbide, 0-2 per cent Fe2O3, 0.01-2 per cent Al2O3 and 0.5-8 per cent BaO, the minor constituents forming with the silicon carbide a glaze which is resistant to oxidation. In an example, a standard size refractory brick is made by mixing 93 parts of silicon carbide grains, 7 parts of finely-powdered silicon carbide, 3 parts of barium carbonate and 3 parts of dry lignone, incorporating sufficient water to bring the mixture to pressing consistency, moulding under pressure the mixture so obtained, drying at 220 DEG F. and firing in a kiln at 1450 DEG C. Specification 522,118 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB706143A GB575318A (en) | 1943-05-04 | 1943-05-04 | Improvements in or relating to silicon carbide compositions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB706143A GB575318A (en) | 1943-05-04 | 1943-05-04 | Improvements in or relating to silicon carbide compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB575318A true GB575318A (en) | 1946-02-13 |
Family
ID=9825861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB706143A Expired GB575318A (en) | 1943-05-04 | 1943-05-04 | Improvements in or relating to silicon carbide compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB575318A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE975182C (en) * | 1952-11-12 | 1961-09-28 | Norton Ges M B H Deutsche | Process for making silicon carbide abrasive tools |
-
1943
- 1943-05-04 GB GB706143A patent/GB575318A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE975182C (en) * | 1952-11-12 | 1961-09-28 | Norton Ges M B H Deutsche | Process for making silicon carbide abrasive tools |
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