GB1571341A - Manufacture of magnetic recording media having a wearresistant surface - Google Patents
Manufacture of magnetic recording media having a wearresistant surface Download PDFInfo
- Publication number
- GB1571341A GB1571341A GB6881/77A GB688177A GB1571341A GB 1571341 A GB1571341 A GB 1571341A GB 6881/77 A GB6881/77 A GB 6881/77A GB 688177 A GB688177 A GB 688177A GB 1571341 A GB1571341 A GB 1571341A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- minutes
- magnetic recording
- cobalt
- oxygen
- 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
- 230000005291 magnetic effect Effects 0.000 title claims description 39
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000010410 layer Substances 0.000 claims description 62
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 23
- 239000010941 cobalt Substances 0.000 claims description 19
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 19
- 239000002585 base Substances 0.000 claims description 18
- 230000005294 ferromagnetic effect Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 17
- 229910017052 cobalt Inorganic materials 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims description 10
- 239000011574 phosphorus Substances 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 239000002344 surface layer Substances 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 150000001860 citric acid derivatives Chemical class 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 150000003892 tartrate salts Chemical class 0.000 claims description 2
- SYQQWGGBOQFINV-FBWHQHKGSA-N 4-[2-[(2s,8s,9s,10r,13r,14s,17r)-10,13-dimethyl-17-[(2r)-6-methylheptan-2-yl]-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-2-yl]ethoxy]-4-oxobutanoic acid Chemical compound C1CC2=CC(=O)[C@H](CCOC(=O)CCC(O)=O)C[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 SYQQWGGBOQFINV-FBWHQHKGSA-N 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 150000001340 alkali metals Chemical class 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 239000010452 phosphate Substances 0.000 claims 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims 1
- 239000011241 protective layer Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 230000006378 damage Effects 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 238000000151 deposition Methods 0.000 description 6
- 230000008021 deposition Effects 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- 239000000872 buffer Substances 0.000 description 5
- 239000011889 copper foil Substances 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- 229910000531 Co alloy Inorganic materials 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000003637 basic solution Substances 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- IHZXTIBMKNSJCJ-UHFFFAOYSA-N 3-{[(4-{[4-(dimethylamino)phenyl](4-{ethyl[(3-sulfophenyl)methyl]amino}phenyl)methylidene}cyclohexa-2,5-dien-1-ylidene)(ethyl)azaniumyl]methyl}benzene-1-sulfonate Chemical compound C=1C=C(C(=C2C=CC(C=C2)=[N+](C)C)C=2C=CC(=CC=2)N(CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S(O)(=O)=O)=C1 IHZXTIBMKNSJCJ-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229910000521 B alloy Inorganic materials 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 101100283604 Caenorhabditis elegans pigk-1 gene Proteins 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 229910001096 P alloy Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical group 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- UMFCIIBZHQXRCJ-NSCUHMNNSA-N trans-anol Chemical compound C\C=C\C1=CC=C(O)C=C1 UMFCIIBZHQXRCJ-NSCUHMNNSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005406 washing Methods 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
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
-
- 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2608022A DE2608022C2 (de) | 1976-02-27 | 1976-02-27 | Verfahren zur Herstellung magnetischer Aufzeichnungsträger mit verschleißfester Oberfläche |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1571341A true GB1571341A (en) | 1980-07-16 |
Family
ID=5971041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6881/77A Expired GB1571341A (en) | 1976-02-27 | 1977-02-18 | Manufacture of magnetic recording media having a wearresistant surface |
Country Status (5)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2473209A1 (fr) * | 1980-01-08 | 1981-07-10 | Sagem | Procede pour former une couche de protection sur une couche magnetique et couche magnetique protegee obtenue par ce procede |
| US4380966A (en) * | 1980-10-11 | 1983-04-26 | Canon Kabushiki Kaisha | Development apparatus |
| JPS5798133A (en) * | 1980-12-05 | 1982-06-18 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS57138033A (en) * | 1981-02-19 | 1982-08-26 | Fuji Photo Film Co Ltd | Magnetic recording medium |
| JPS57186231A (en) * | 1981-05-13 | 1982-11-16 | Matsushita Electric Ind Co Ltd | Manufacture for magnetic recording medium |
| JPS57198543A (en) * | 1981-05-28 | 1982-12-06 | Matsushita Electric Ind Co Ltd | Manufacture of magnetic recording medium |
| JPS5883327A (ja) * | 1981-11-12 | 1983-05-19 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
| JPS60138720A (ja) * | 1983-12-27 | 1985-07-23 | Sharp Corp | 垂直磁気記録媒体 |
| US4666759A (en) * | 1984-06-30 | 1987-05-19 | Kabushiki Kaisha Toshiba | Data recording medium |
| US5236790A (en) * | 1989-03-31 | 1993-08-17 | Ampex Systems Corporation | Restored magnetic recording media and method of producing same |
| JPH04323030A (ja) * | 1991-04-22 | 1992-11-12 | Yamato Esuron Kk | 食品貯蔵用合成樹脂製容器 |
| WO1998049678A1 (en) * | 1997-04-25 | 1998-11-05 | Iomega Corporation | Temperature treatment of flexible media for their dimensional stability |
| BR112019021335B1 (pt) | 2017-04-11 | 2023-12-12 | Johnson & Johnson Consumer Inc | Curativo extensível |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3719525A (en) | 1969-01-09 | 1973-03-06 | Control Data Corp | Magnetic record members having a protective recording surface and method of making |
| US3816185A (en) * | 1970-03-18 | 1974-06-11 | Raytheon Co | Protective coating on wire |
| US3674554A (en) | 1970-07-23 | 1972-07-04 | Ncr Co | Formation of oxide coating on surface of a magnetic cobalt nickel alloy |
| US3922389A (en) * | 1972-01-07 | 1975-11-25 | Raytheon Co | Method for protectively coating magnetic wire |
| DE2220964A1 (de) * | 1972-04-28 | 1973-11-08 | Basf Ag | Verfahren zur herstellung starrer magnetischer aufzeichnungstraeger |
| DE2250460C3 (de) | 1972-10-14 | 1981-09-10 | Ibm Deutschland Gmbh, 7000 Stuttgart | Magnetischer Aufzeichnungsträger |
| DE2405623A1 (de) * | 1974-02-06 | 1976-01-08 | Basf Ag | Magnetische duennschichtfilme mit austauschanisotropem verhalten |
-
1976
- 1976-02-27 DE DE2608022A patent/DE2608022C2/de not_active Expired
-
1977
- 1977-02-03 US US05/765,159 patent/US4272563A/en not_active Expired - Lifetime
- 1977-02-18 GB GB6881/77A patent/GB1571341A/en not_active Expired
- 1977-02-21 JP JP52017261A patent/JPS6043566B2/ja not_active Expired
- 1977-02-25 FR FR7705671A patent/FR2342539A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2342539A1 (fr) | 1977-09-23 |
| US4272563A (en) | 1981-06-09 |
| DE2608022C2 (de) | 1984-03-29 |
| DE2608022A1 (de) | 1977-09-08 |
| JPS6043566B2 (ja) | 1985-09-28 |
| FR2342539B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-09-05 |
| JPS52104903A (en) | 1977-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930218 |