GB754638A - Process for the manufacture of boron carbide moulding powders - Google Patents
Process for the manufacture of boron carbide moulding powdersInfo
- Publication number
- GB754638A GB754638A GB33264/54A GB3326454A GB754638A GB 754638 A GB754638 A GB 754638A GB 33264/54 A GB33264/54 A GB 33264/54A GB 3326454 A GB3326454 A GB 3326454A GB 754638 A GB754638 A GB 754638A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boron
- per cent
- carbon
- boron carbide
- microns
- 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/563—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on boron carbide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/991—Boron carbide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A batch of boron carbide, of use as a moulding powder, with boron/carbon molar ratio between 3.80 and 3.90 is made by a selected combination of lots of crude boron carbide with 98 per cent boron or carbon and a boron/carbon molar ratio between 3.65 and 4.05. This bath can be ground to desired particle size and treated with concentrated sulphuric acid, especially when grinding with iron balls, so that final iron content is less than 0.1 per cent and total boron and carbon of at least 99 per cent. A suitable molding powder, which has been thus selected, comminuted and cleaned contains 80-90 per cent of particle size from 5-50 microns; less than 12 per cent under 5 microns and none over 100 microns.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US754638XA | 1953-11-23 | 1953-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB754638A true GB754638A (en) | 1956-08-08 |
Family
ID=22125923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33264/54A Expired GB754638A (en) | 1953-11-23 | 1954-11-17 | Process for the manufacture of boron carbide moulding powders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB754638A (en) |
-
1954
- 1954-11-17 GB GB33264/54A patent/GB754638A/en not_active Expired
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