JPH0322654B2 - - Google Patents
Info
- Publication number
- JPH0322654B2 JPH0322654B2 JP59140296A JP14029684A JPH0322654B2 JP H0322654 B2 JPH0322654 B2 JP H0322654B2 JP 59140296 A JP59140296 A JP 59140296A JP 14029684 A JP14029684 A JP 14029684A JP H0322654 B2 JPH0322654 B2 JP H0322654B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- recording medium
- magnetic
- hexagonal ferrite
- support
- 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
- 229910000859 α-Fe Inorganic materials 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 8
- 229910052738 indium Inorganic materials 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910052788 barium Inorganic materials 0.000 claims description 4
- 229910052732 germanium Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910052745 lead Inorganic materials 0.000 claims description 2
- 229910052712 strontium Inorganic materials 0.000 claims description 2
- 239000013058 crude material Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 28
- 239000000203 mixture Substances 0.000 description 14
- 230000005415 magnetization Effects 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000006247 magnetic powder Substances 0.000 description 9
- 238000006467 substitution reaction Methods 0.000 description 7
- 238000000635 electron micrograph Methods 0.000 description 5
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 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 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 159000000009 barium salts Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 150000002471 indium Chemical class 0.000 description 2
- 150000002505 iron Chemical class 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910020517 Co—Ti Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011254 layer-forming composition Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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 |
|---|---|---|---|
| JP59140296A JPS60150236A (ja) | 1984-07-06 | 1984-07-06 | 垂直磁気記録用高密度磁気記録体の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59140296A JPS60150236A (ja) | 1984-07-06 | 1984-07-06 | 垂直磁気記録用高密度磁気記録体の製造方法 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53157664A Division JPS6050323B2 (ja) | 1978-12-22 | 1978-12-22 | 高密度記録体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60150236A JPS60150236A (ja) | 1985-08-07 |
| JPH0322654B2 true JPH0322654B2 (enrdf_load_stackoverflow) | 1991-03-27 |
Family
ID=15265481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59140296A Granted JPS60150236A (ja) | 1984-07-06 | 1984-07-06 | 垂直磁気記録用高密度磁気記録体の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60150236A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5230818A (en) * | 1991-12-20 | 1993-07-27 | Eastman Kodak Company | Coating compositions for master media for anhysteretic recording |
-
1984
- 1984-07-06 JP JP59140296A patent/JPS60150236A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60150236A (ja) | 1985-08-07 |
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