GB800242A - Oxide materials for permanent magnets - Google Patents
Oxide materials for permanent magnetsInfo
- Publication number
- GB800242A GB800242A GB16229/56A GB1622956A GB800242A GB 800242 A GB800242 A GB 800242A GB 16229/56 A GB16229/56 A GB 16229/56A GB 1622956 A GB1622956 A GB 1622956A GB 800242 A GB800242 A GB 800242A
- Authority
- GB
- United Kingdom
- Prior art keywords
- permanent magnets
- oxide materials
- hours
- air
- value
- 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
- C04B35/2683—Other ferrites containing alkaline earth metals or lead
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
Abstract
800,242. Magnetic compositions. LICENTIA PATENT-VERWALTUNGS-G .m.b.H. May 25, 1956 [May 28, 1955], No. 16229/56. Class 38 (2). A material exhibiting permanent magnetism can be represented by the formula PbO: yFe 2 O 3 ; xSiO 2 , where y is between 3.5 and 5.2 and x is between 0.02 and 0.7. The value of coercivity may be chosen in the range 100 to 4000 oersteds by appropriate selection of the value of x. A suitable material is made by grinding suitable proportions of starting oxides in water for 2 hours, drying, presintering in air at 950‹ C., regrinding for 2 hours, redrying and sintering in air at 1100‹ C. The material may be made magnetically anisotropic.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE800242X | 1955-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB800242A true GB800242A (en) | 1958-08-20 |
Family
ID=6712455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16229/56A Expired GB800242A (en) | 1955-05-28 | 1956-05-25 | Oxide materials for permanent magnets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB800242A (en) |
-
1956
- 1956-05-25 GB GB16229/56A patent/GB800242A/en not_active Expired
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