JPS59207605A - 磁気記録用粉末の製造方法 - Google Patents
磁気記録用粉末の製造方法Info
- Publication number
- JPS59207605A JPS59207605A JP58080763A JP8076383A JPS59207605A JP S59207605 A JPS59207605 A JP S59207605A JP 58080763 A JP58080763 A JP 58080763A JP 8076383 A JP8076383 A JP 8076383A JP S59207605 A JPS59207605 A JP S59207605A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- approximately
- magnetic recording
- washed
- magnetic
- 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.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000012298 atmosphere Substances 0.000 claims abstract description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 6
- 238000010304 firing Methods 0.000 claims description 8
- 239000006247 magnetic powder Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 5
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 abstract description 4
- 239000012300 argon atmosphere Substances 0.000 abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 abstract 2
- 229910002588 FeOOH Inorganic materials 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 abstract 1
- 229940005991 chloric acid Drugs 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002609 medium Substances 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 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 description 2
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 1
- -1 Fe0OH Chemical compound 0.000 description 1
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical compound [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010952 cobalt-chrome Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
- G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
- G11B5/70678—Ferrites
Landscapes
- Compounds Of Iron (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Hard Magnetic Materials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58080763A JPS59207605A (ja) | 1983-05-11 | 1983-05-11 | 磁気記録用粉末の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58080763A JPS59207605A (ja) | 1983-05-11 | 1983-05-11 | 磁気記録用粉末の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59207605A true JPS59207605A (ja) | 1984-11-24 |
| JPH0531281B2 JPH0531281B2 (enrdf_load_stackoverflow) | 1993-05-12 |
Family
ID=13727457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58080763A Granted JPS59207605A (ja) | 1983-05-11 | 1983-05-11 | 磁気記録用粉末の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59207605A (enrdf_load_stackoverflow) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56149328A (en) * | 1980-04-21 | 1981-11-19 | Toshiba Corp | Manufacture of magnetic oxide material |
| JPS5842203A (ja) * | 1981-09-07 | 1983-03-11 | Toshiba Corp | 高密度磁気記録用磁性粉の製造方法 |
| JPS5856302A (ja) * | 1981-09-30 | 1983-04-04 | Toshiba Corp | 高密度磁気記録用磁性粉の製造方法 |
-
1983
- 1983-05-11 JP JP58080763A patent/JPS59207605A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56149328A (en) * | 1980-04-21 | 1981-11-19 | Toshiba Corp | Manufacture of magnetic oxide material |
| JPS5842203A (ja) * | 1981-09-07 | 1983-03-11 | Toshiba Corp | 高密度磁気記録用磁性粉の製造方法 |
| JPS5856302A (ja) * | 1981-09-30 | 1983-04-04 | Toshiba Corp | 高密度磁気記録用磁性粉の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531281B2 (enrdf_load_stackoverflow) | 1993-05-12 |
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