GB875890A - Ferromagnetic materials - Google Patents
Ferromagnetic materialsInfo
- Publication number
- GB875890A GB875890A GB511359A GB511359A GB875890A GB 875890 A GB875890 A GB 875890A GB 511359 A GB511359 A GB 511359A GB 511359 A GB511359 A GB 511359A GB 875890 A GB875890 A GB 875890A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feb
- mol
- per cent
- waves
- ferromagnetic materials
- 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
- C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites
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)
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
- Soft Magnetic Materials (AREA)
Abstract
875,890. Magnetic compositions. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Feb. 13, 1959[ Feb. 18, 1958], No. 5113/59. Drawings to Specification. Class 38 (2). A ferromagnetic ceramic material comprises 50-60 mol. per cent MnO, 3-20 mol. per cent Cr 2 O 3 and the remainder Fe 2 O 3 . The material is prepared mixing the appropriate oxides and heating in nitrogen containing 1% oxygen for four hours at between 1150‹ C. and 1250‹ C. These materials are used in devices utilizing the gyromagnetic effect and have an improved ratio of rotation of the plane of polarization of incident electromagnetic waves to the attenuation of such waves.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR758482 | 1958-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB875890A true GB875890A (en) | 1961-08-23 |
Family
ID=8705772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB511359A Expired GB875890A (en) | 1958-02-18 | 1959-02-13 | Ferromagnetic materials |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE575792A (en) |
| CH (1) | CH387821A (en) |
| DE (1) | DE1088862B (en) |
| ES (1) | ES247130A1 (en) |
| FR (1) | FR1191655A (en) |
| GB (1) | GB875890A (en) |
-
1958
- 1958-02-18 FR FR1191655D patent/FR1191655A/en not_active Expired
-
1959
- 1959-02-06 CH CH6920059A patent/CH387821A/en unknown
- 1959-02-10 ES ES0247130A patent/ES247130A1/en not_active Expired
- 1959-02-13 GB GB511359A patent/GB875890A/en not_active Expired
- 1959-02-17 BE BE575792A patent/BE575792A/en unknown
- 1959-02-17 DE DEC18425A patent/DE1088862B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH387821A (en) | 1965-02-15 |
| ES247130A1 (en) | 1959-06-01 |
| BE575792A (en) | 1959-06-15 |
| DE1088862B (en) | 1960-09-08 |
| FR1191655A (en) | 1959-10-21 |
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