GB735833A - Green body from which a ferrospinel composition having ferromagnetic properties can be produced - Google Patents
Green body from which a ferrospinel composition having ferromagnetic properties can be producedInfo
- Publication number
- GB735833A GB735833A GB25726/53A GB2572653A GB735833A GB 735833 A GB735833 A GB 735833A GB 25726/53 A GB25726/53 A GB 25726/53A GB 2572653 A GB2572653 A GB 2572653A GB 735833 A GB735833 A GB 735833A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- weight
- water
- oxides
- paraffin
- 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
- C04B35/42—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 chromites
-
- 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
-
- 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
- C04B35/12—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 chromium oxide
-
- 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
- C04B35/44—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 aluminates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Hard Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
Abstract
735,833. Magnetic compositions. RADIO CORPORATION OF AMERICA. Sept. 17, 1953 [Oct. 14, I952], No. 25726/53. Class 38 (2). A green body from which a ferrospinel composition having ferromagnetic properties can be formed comprises a mixture of powdered metal oxides, water emulsion of paraffin and potato starch flour. In making a ferrite material, ¢ per cent and 1 per cent by weight respectively of potato starch flour and zinc stearate are added to a mixture of powdered oxides comprising in parts by weight 20 of MnO 2 , 10 of ZnO, 70 of Fe 2 O 3 , and 2 of CuO which oxides have been calcined at 900‹ C. About 8 per cent by weight of an emulsion of 46 per cent paraffin and 54 per cent water is mixed in and the mixture is worked into a puttylike mass with 14 per cent by weight of water, and converted into pellets which are dried and moulded into green bodies. These are fired at 900-1500‹ C. for 10 minutes to six hours. The zinc stearate which acts as a lubricant during moulding may be omitted or replaced by stearic acid or magnesium stearate. The potato starch flour may be present in weight between “ per cent and 1¢ per cent and the emulsion may comprise from 1 to 5 parts of water per part of paraffin. The oxides may be of Mg, Zn and Fe.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US735833XA | 1952-10-14 | 1952-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB735833A true GB735833A (en) | 1955-08-31 |
Family
ID=22114575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25726/53A Expired GB735833A (en) | 1952-10-14 | 1953-09-17 | Green body from which a ferrospinel composition having ferromagnetic properties can be produced |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB735833A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066103A (en) * | 1958-08-07 | 1962-11-27 | Int Standard Electric Corp | Manganese ferrites |
| US4715946A (en) * | 1985-04-05 | 1987-12-29 | Institut Francais Du Petrole | Process for deasphalting a hydrocarbon charge containing asphaltenes |
-
1953
- 1953-09-17 GB GB25726/53A patent/GB735833A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066103A (en) * | 1958-08-07 | 1962-11-27 | Int Standard Electric Corp | Manganese ferrites |
| US4715946A (en) * | 1985-04-05 | 1987-12-29 | Institut Francais Du Petrole | Process for deasphalting a hydrocarbon charge containing asphaltenes |
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