JPH0471013B2 - - Google Patents
Info
- Publication number
- JPH0471013B2 JPH0471013B2 JP60062907A JP6290785A JPH0471013B2 JP H0471013 B2 JPH0471013 B2 JP H0471013B2 JP 60062907 A JP60062907 A JP 60062907A JP 6290785 A JP6290785 A JP 6290785A JP H0471013 B2 JPH0471013 B2 JP H0471013B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- particles
- shaped
- ferrite
- powder
- 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
- 239000002245 particle Substances 0.000 claims description 93
- 229910000859 α-Fe Inorganic materials 0.000 claims description 37
- 239000000843 powder Substances 0.000 claims description 34
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 24
- 235000011187 glycerol Nutrition 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 229910001422 barium ion Inorganic materials 0.000 claims description 6
- 230000005294 ferromagnetic effect Effects 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000005415 magnetization Effects 0.000 description 10
- 239000000696 magnetic material Substances 0.000 description 9
- 238000000635 electron micrograph Methods 0.000 description 6
- 230000005291 magnetic effect Effects 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010335 hydrothermal treatment Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000001493 electron microscopy Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60062907A JPS61219722A (ja) | 1985-03-26 | 1985-03-26 | 板状Ｂａフエライト粒子粉末の製造法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60062907A JPS61219722A (ja) | 1985-03-26 | 1985-03-26 | 板状Ｂａフエライト粒子粉末の製造法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61219722A JPS61219722A (ja) | 1986-09-30 |
| JPH0471013B2 true JPH0471013B2 (enrdf_load_stackoverflow) | 1992-11-12 |
Family
ID=13213791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60062907A Granted JPS61219722A (ja) | 1985-03-26 | 1985-03-26 | 板状Ｂａフエライト粒子粉末の製造法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61219722A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5390756B2 (ja) * | 2007-08-02 | 2014-01-15 | 関東電化工業株式会社 | 薄片状Ｂａフェライト微粒子の製造方法 |
-
1985
- 1985-03-26 JP JP60062907A patent/JPS61219722A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61219722A (ja) | 1986-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3042543A (en) | Magnetic particles and method of making same | |
| US4548801A (en) | Plate-like barium ferrite particles for use in magnetic recording and process for producing the same | |
| EP0041727A1 (en) | Process for preparing ferromagnetic particles comprising metallic iron | |
| JPH0212004B2 (enrdf_load_stackoverflow) | ||
| US4382982A (en) | Process for protecting magnetic particles with chromium oxide | |
| JPS63277523A (ja) | 板状磁性粉体の製造方法 | |
| KR900000429B1 (ko) | 자기 기록용 판상 아철산 바륨입자와 그 제조방법 | |
| JPH0578161B2 (enrdf_load_stackoverflow) | ||
| JPS60137002A (ja) | 磁気記録用板状Ｂａフエライト微粒子粉末の製造法 | |
| EP0615231B1 (en) | Process for producing magnetic metal particles | |
| JPH0471013B2 (enrdf_load_stackoverflow) | ||
| JP2727187B2 (ja) | 板状ヘマタイト粒子粉末の製造方法 | |
| JPH0469091B2 (enrdf_load_stackoverflow) | ||
| JPS62176921A (ja) | 板状Ｂａフエライト微粒子粉末の製造法 | |
| JPS62128102A (ja) | 板状Ｂａフエライト粒子粉末の製造方法 | |
| JPH02175806A (ja) | 磁気記録用金属磁性粉末の製造方法 | |
| JPS61197426A (ja) | 磁気記録用板状Ｂａフエライト微粒子粉末の製造法 | |
| JPH07120577B2 (ja) | 磁気記録用板状Ｂａフエライト微粒子粉末及びその製造法 | |
| JPH0670854B2 (ja) | 磁気記録用板状Ｂａフェライト微粒子粉末及びその製造法 | |
| JP3328017B2 (ja) | 垂直磁気異方性を有する針状六方晶系フェライト磁性粉の製造方法 | |
| JPH0471014B2 (enrdf_load_stackoverflow) | ||
| JPS6090829A (ja) | バリウムフエライトの処理法 | |
| JPH0647465B2 (ja) | ＢａＯ・９／２Ｆｅ▲下２▼Ｏ▲下３▼微結晶粉末の製造方法 | |
| JPH043902A (ja) | 磁気記録用針状磁性酸化鉄粒子粉末及びその製造法 | |
| JPH0514328B2 (enrdf_load_stackoverflow) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |