JPS5543833A - Manufacture of ferrite - Google Patents
Manufacture of ferriteInfo
- Publication number
- JPS5543833A JPS5543833A JP11639078A JP11639078A JPS5543833A JP S5543833 A JPS5543833 A JP S5543833A JP 11639078 A JP11639078 A JP 11639078A JP 11639078 A JP11639078 A JP 11639078A JP S5543833 A JPS5543833 A JP S5543833A
- Authority
- JP
- Japan
- Prior art keywords
- voids
- high density
- ferrite
- less
- ball mill
- 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.)
- Pending
Links
Landscapes
- Soft Magnetic Materials (AREA)
Abstract
PURPOSE: To obtain a high density of ferrite superior in mechanical and magnetic characteristics by burning the ferrite to voids coming less than 5% and then growing crystal particles thereon through hot hydrostatic pressing to high density.
CONSTITUTION: A raw material is weighed so as to have a composition in MnO at 30mol%, ZnO at 15% and in Fe2O3 at 55mol% for example, mixed in a ball mill, calcined then at 1,100°C, ground again in the ball mill and subjected to a primary burning so as to have voids coming less than 5%. Next, crystal particles are grown thereon through hot hydrostatic pressing to a high density under conditions, for example, at 1,250°C and 800atm. A heat treatment is applied furthermore to remove strain. Now, the voids cound be then retained less than 0.1%, and the crystal particle size was 26μ on an average.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11639078A JPS5543833A (en) | 1978-09-21 | 1978-09-21 | Manufacture of ferrite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11639078A JPS5543833A (en) | 1978-09-21 | 1978-09-21 | Manufacture of ferrite |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5543833A true JPS5543833A (en) | 1980-03-27 |
Family
ID=14685831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11639078A Pending JPS5543833A (en) | 1978-09-21 | 1978-09-21 | Manufacture of ferrite |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5543833A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4870717A (en) * | 1971-12-22 | 1973-09-25 |
-
1978
- 1978-09-21 JP JP11639078A patent/JPS5543833A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4870717A (en) * | 1971-12-22 | 1973-09-25 |
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