JPH0519803B2 - - Google Patents
Info
- Publication number
- JPH0519803B2 JPH0519803B2 JP59222772A JP22277284A JPH0519803B2 JP H0519803 B2 JPH0519803 B2 JP H0519803B2 JP 59222772 A JP59222772 A JP 59222772A JP 22277284 A JP22277284 A JP 22277284A JP H0519803 B2 JPH0519803 B2 JP H0519803B2
- Authority
- JP
- Japan
- Prior art keywords
- surface area
- specific surface
- barium ferrite
- feooh
- barium
- 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 - Lifetime
Links
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 claims description 33
- 230000005291 magnetic effect Effects 0.000 claims description 14
- 229910001422 barium ion Inorganic materials 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- 229910002588 FeOOH Inorganic materials 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 229910006299 γ-FeOOH Inorganic materials 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000000696 magnetic material Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000010335 hydrothermal treatment Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910006540 α-FeOOH Inorganic materials 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000000635 electron micrograph Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59222772A JPS61100905A (ja) | 1984-10-23 | 1984-10-23 | 板状バリウムフエライト粉末の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59222772A JPS61100905A (ja) | 1984-10-23 | 1984-10-23 | 板状バリウムフエライト粉末の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61100905A JPS61100905A (ja) | 1986-05-19 |
| JPH0519803B2 true JPH0519803B2 (enrdf_load_stackoverflow) | 1993-03-17 |
Family
ID=16787643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59222772A Granted JPS61100905A (ja) | 1984-10-23 | 1984-10-23 | 板状バリウムフエライト粉末の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61100905A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2574397B1 (fr) * | 1984-12-11 | 1987-01-09 | Centre Nat Rech Scient | Procede de preparation de ferrites hexagonales aimantees - utilisation de ces ferrites comme materiaux de base pour aimants ou pour l'enregistrement magnetique |
-
1984
- 1984-10-23 JP JP59222772A patent/JPS61100905A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61100905A (ja) | 1986-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |