GB823557A - Improvements in or relating to magnetic core material - Google Patents
Improvements in or relating to magnetic core materialInfo
- Publication number
- GB823557A GB823557A GB1810256A GB1810256A GB823557A GB 823557 A GB823557 A GB 823557A GB 1810256 A GB1810256 A GB 1810256A GB 1810256 A GB1810256 A GB 1810256A GB 823557 A GB823557 A GB 823557A
- Authority
- GB
- United Kingdom
- Prior art keywords
- proportions
- june
- hour
- nitrogen
- air
- 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
- C04B35/26—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 ferrites
- C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
- C04B35/2625—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing magnesium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Magnetic Ceramics (AREA)
- Soft Magnetic Materials (AREA)
Abstract
823,557. Magnetic compositions. INTERNATIONAL COMPUTERS & TABULATORS Ltd. June 11, 1957 [June 12, 1956], No. 18102/56. Class 38 (2). A ferromagnetic ferrite exhibiting a rectangular hysteresis loop is made by sintering together MgO, MnO 2 , Fe 2 O 3 in the relative proportions by weight which fall within the area WXYZ of the triaxial diagram shown in Fig. 3, or other compounds in such proportions as to give a similar result. The starting materials were milled in water, dried prefired at 1000‹ C. for 1 hour in nitrogen or air, reground, mixed with an organic binder, moulded and fired at 139‹ to 1500‹ C. for a half to one hour in nitrogen or air. Magnetic properties are tabulated for a number of ferrites made from materials in different starting proportions indicated by the points A, B, C, D, E.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1810256A GB823557A (en) | 1956-06-12 | 1956-06-12 | Improvements in or relating to magnetic core material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1810256A GB823557A (en) | 1956-06-12 | 1956-06-12 | Improvements in or relating to magnetic core material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB823557A true GB823557A (en) | 1959-11-11 |
Family
ID=10106683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1810256A Expired GB823557A (en) | 1956-06-12 | 1956-06-12 | Improvements in or relating to magnetic core material |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB823557A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4598034A (en) * | 1982-09-13 | 1986-07-01 | Nippon Iron Powder Co., Ltd. | Ferrite carriers for electrophotographic development |
-
1956
- 1956-06-12 GB GB1810256A patent/GB823557A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4598034A (en) * | 1982-09-13 | 1986-07-01 | Nippon Iron Powder Co., Ltd. | Ferrite carriers for electrophotographic development |
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