JPS644330B2 - - Google Patents
Info
- Publication number
- JPS644330B2 JPS644330B2 JP54166813A JP16681379A JPS644330B2 JP S644330 B2 JPS644330 B2 JP S644330B2 JP 54166813 A JP54166813 A JP 54166813A JP 16681379 A JP16681379 A JP 16681379A JP S644330 B2 JPS644330 B2 JP S644330B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- recording
- hexagonal ferrite
- amorphous body
- particles
- 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
- 239000000843 powder Substances 0.000 claims description 29
- 229910000859 α-Fe Inorganic materials 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 20
- 239000006247 magnetic powder Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 9
- 239000010419 fine particle Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 238000007496 glass forming Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 10
- 230000005415 magnetization Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- CFQGDIWRTHFZMQ-UHFFFAOYSA-N argon helium Chemical compound [He].[Ar] CFQGDIWRTHFZMQ-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- BVGSSXDMHDNNIF-UHFFFAOYSA-N (4-oxo-2,3-dihydro-1h-cyclopenta[c]chromen-7-yl) 3-chloro-4-[2-[(2-methylpropan-2-yl)oxycarbonylamino]acetyl]oxybenzoate Chemical compound C1=C(Cl)C(OC(=O)CNC(=O)OC(C)(C)C)=CC=C1C(=O)OC1=CC=C(C2=C(CCC2)C(=O)O2)C2=C1 BVGSSXDMHDNNIF-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003917 TEM image Methods 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Compounds Of Iron (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16681379A JPS5690505A (en) | 1979-12-24 | 1979-12-24 | Manufacture of magnetic powder for high density magnetic recording |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16681379A JPS5690505A (en) | 1979-12-24 | 1979-12-24 | Manufacture of magnetic powder for high density magnetic recording |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5690505A JPS5690505A (en) | 1981-07-22 |
| JPS644330B2 true JPS644330B2 (ko) | 1989-01-25 |
Family
ID=15838134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16681379A Granted JPS5690505A (en) | 1979-12-24 | 1979-12-24 | Manufacture of magnetic powder for high density magnetic recording |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5690505A (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5964531A (ja) * | 1982-09-30 | 1984-04-12 | Toshiba Corp | Ｂａ―フェライト磁性粉末の製造方法 |
| JPS59151340A (ja) * | 1983-02-16 | 1984-08-29 | Fuji Photo Film Co Ltd | 磁気記録用フエライト磁性粉の製造法 |
| JP2735833B2 (ja) * | 1987-09-28 | 1998-04-02 | 住友金属鉱山株式会社 | 樹脂結合型磁石用粉末の製造方法 |
| US5352627A (en) * | 1993-05-10 | 1994-10-04 | Cooper Gregory A | Monolithic high voltage nonlinear transmission line fabrication process |
| JP4675581B2 (ja) * | 2004-05-31 | 2011-04-27 | Ａｇｃテクノグラス株式会社 | 六方晶フェライト磁性粉末の製造方法 |
| JP6077198B2 (ja) * | 2011-05-11 | 2017-02-08 | Ｄｏｗａエレクトロニクス株式会社 | 六方晶フェライト凝集粒子 |
-
1979
- 1979-12-24 JP JP16681379A patent/JPS5690505A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5690505A (en) | 1981-07-22 |
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