WO1982004158A1 - Magnetic recording medium - Google Patents
Magnetic recording medium Download PDFInfo
- Publication number
- WO1982004158A1 WO1982004158A1 PCT/JP1982/000185 JP8200185W WO8204158A1 WO 1982004158 A1 WO1982004158 A1 WO 1982004158A1 JP 8200185 W JP8200185 W JP 8200185W WO 8204158 A1 WO8204158 A1 WO 8204158A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- recording medium
- metal
- magnetic recording
- magnetic
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 150000004767 nitrides Chemical class 0.000 claims description 9
- 239000010941 cobalt Substances 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 3
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims 2
- 229910045601 alloy Inorganic materials 0.000 claims 2
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 239000007789 gas Substances 0.000 description 19
- 238000007740 vapor deposition Methods 0.000 description 8
- 239000010408 film Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 235000007119 Ananas comosus Nutrition 0.000 description 1
- 244000099147 Ananas comosus Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 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
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
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
- G11B5/672—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
Definitions
- the present invention relates to a magnetic recording medium, in particular, a so-called thin-film magnetic recording medium in which a metal magnetic layer is formed on a non-magnetic substrate, and particularly to the durability of the metal magnetic layer such as adhesion and abrasion resistance. It will be improved.
- a discontinuous film made of a dissimilar metal such as A.sub.1 and T.sub.i or an organic material is interposed between the nonmagnetic substrate and the metal magnetic layer. Attempts were made to increase the adhesion of the metal magnetic layer, but this was not satisfactory enough.
- At least one surface of the nonmagnetic substrate has a metal layer whose surface has been changed, nitrided or carbonized, and a metal magnetic layer has been formed thereon.
- the durability of the metal magnetic layer in the magnetic recording medium is improved (increased by a factor of 10 to 10 times), and this type of highly reliable magnetic recording; Can be provided.
- 1 to 5 are new front views showing an example of a magnetic recording medium according to the present invention.
- a non-magnetic base material i.e., a polyethylene terephthalate base (1) is first prepared and the base (1) is used.
- Activation of this for example a low pressure atmosphere containing oxygen gas (to generate plasma of O Ri ambient gas co ⁇ na discharge vacuum 1 0- 1 ⁇ 1 0 torr :) , in this flop plasma Go.
- a mixed gas of Ar70 and 0230%, and an atmosphere of 02 gas pressure of 10 torr (hereinafter referred to as atmosphere (a)
- atmosphere (a) the atmosphere gas used in the activation treatment is not limited to the gas containing the iodine, but may be any gas such as argon gas.
- a cobalt discontinuous discontinuous film or island ⁇ : minute (2) Is formed by a method such as vapor deposition or sputtering.
- the average film thickness of the island-shaped portion (2) is 10 to about LO 0 A, and in this example, about 300.
- a £, Ti, etc. can be used in addition to Co, but Co is the most preferable. This is because the composition is the same as the composition of the metal magnetic layer formed after II, so that only one evaporation source is required and the productivity is improved.
- Either vertical vapor deposition or oblique vapor deposition may be used as the vapor deposition method, but oblique vapor deposition is easier to form into an island shape.
- an oxidizing atmosphere a gas containing 02 gas, for example, a gas containing from pure 02 gas to about 20 gas containing 02 gas (the remainder is an inert gas)
- a nitriding atmosphere a gas containing the inert gas.
- a plasma is generated by applying a DC voltage to this atmosphere gas.
- the surface or the entire interior of the island-shaped portion (2) is converted into nitride, nitride or carbide (3).
- the plasma conditions introducing a gas pressure of 1 0 one 1 to 0 one 4 torr of the atmosphere gas, the applied voltage and the number 1 0 0 V to several 1 0 0 0 V.
- the plasma generated in the oxygen-containing atmosphere (a) is used to form a cobalt oxide (3) on the surface of the island (2) of the cobalt. .
- a metal beat, nitride or carbide is deposited in a beating atmosphere, a nitriding atmosphere or a carbonizing atmosphere by a reactive ion plating method or an activated reactive deposition method. It can also be formed as an island (2).
- a metal magnetic layer (4) is deposited on the main surface (1A) of the base (1) including the island-shaped portion (2) by means such as vapor deposition and sputtering.
- the metal layer (4) there may be used, for example,
- Nickel containing a small amount of iron can be used.
- the thickness of the metal magnetic layer (4) is from 700 to 200, and in this example, 150 O'A And formed by oblique evaporation.
- the outermost surface of the metallic conductive layer (4) is subjected to plasma treatment to form a layer (5) of nitride, nitride or carbide.
- the oxide layer (5) is formed on the surface of the metal magnetic layer (4) by treatment with the plasma generated in the atmosphere (i) containing i.
- the base in this case, a tabular shape
- the vapor deposition element is used for each of the deposition limits. Move the base (1) over the required angle so that the angle of incidence ⁇ on the angle ⁇ is constant.
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08301832A GB2113898B (en) | 1981-05-22 | 1982-05-21 | Magnetic recording medium |
NL8220164A NL8220164A (nl) | 1981-05-22 | 1982-05-21 | Magnetisch registreermedium. |
DE19823246007 DE3246007A1 (de) | 1981-05-22 | 1982-05-21 | Magnetisches aufzeichnungsmedium |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP81/77539810522 | 1981-05-22 | ||
JP56077539A JPS57191830A (en) | 1981-05-22 | 1981-05-22 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1982004158A1 true WO1982004158A1 (en) | 1982-11-25 |
Family
ID=13636796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1982/000185 WO1982004158A1 (en) | 1981-05-22 | 1982-05-21 | Magnetic recording medium |
Country Status (6)
Country | Link |
---|---|
US (1) | US4696862A (ja) |
EP (1) | EP0079391B1 (ja) |
JP (1) | JPS57191830A (ja) |
GB (1) | GB2113898B (ja) |
NL (1) | NL8220164A (ja) |
WO (1) | WO1982004158A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5930230A (ja) * | 1982-08-12 | 1984-02-17 | Sony Corp | 金属薄膜型磁気記録媒体 |
JPS6085417A (ja) * | 1983-10-14 | 1985-05-14 | Matsushita Electric Ind Co Ltd | 薄膜型磁気記録媒体 |
JPH0827927B2 (ja) * | 1987-07-09 | 1996-03-21 | 富士通株式会社 | 磁気記録媒体 |
DE3803000A1 (de) * | 1988-02-02 | 1989-08-10 | Basf Ag | Flaechenfoermiges, mehrschichtiges magneto-optisches aufzeichnungsmaterial |
ES2074538T3 (es) * | 1989-05-22 | 1995-09-16 | Nippon Sheet Glass Co Ltd | Sustrato utilizado para un disco magnetico y medio de gabracion magnetico que utiliza el sustrato. |
JP2547651B2 (ja) * | 1989-05-22 | 1996-10-23 | 日本板硝子株式会社 | 磁気記録媒体 |
DE69029024T2 (de) * | 1989-10-05 | 1997-04-30 | Ibm | Magnetischer Dünnfilmspeicher und Verfahren zu seiner Herstellung |
US5958543A (en) * | 1995-07-07 | 1999-09-28 | Stor Media,Inc. | Micro-texturing for sputtered, thin film magnetic media disks utilizing titanium sputtered in the presence of hydrogen to form micro-texturing |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5030443B1 (ja) * | 1970-07-23 | 1975-10-01 | ||
JPS5433522B2 (ja) * | 1972-10-14 | 1979-10-22 | ||
JPS56851B2 (ja) * | 1973-07-24 | 1981-01-09 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3460968A (en) * | 1964-11-04 | 1969-08-12 | Ibm | Wear resistant magnetic recording member |
US3691032A (en) * | 1970-05-01 | 1972-09-12 | Gen Electric | Permalloy film plated wires having superior nondestructive read-out characteristics and method of forming |
DE2250480C3 (de) * | 1972-10-14 | 1975-07-17 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Herstellung von Monovinylacetylen |
GB1599161A (en) * | 1976-07-15 | 1981-09-30 | Matsushita Electric Ind Co Ltd | Magnetic recording medium and method of making the same |
DE3117931C2 (de) * | 1980-05-06 | 1985-07-25 | Nippon Electric Co., Ltd., Tokio/Tokyo | Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung |
CA1188796A (en) * | 1981-04-14 | 1985-06-11 | Kenji Yazawa | Magnetic recording medium |
-
1981
- 1981-05-22 JP JP56077539A patent/JPS57191830A/ja active Granted
-
1982
- 1982-05-21 GB GB08301832A patent/GB2113898B/en not_active Expired
- 1982-05-21 EP EP82901533A patent/EP0079391B1/en not_active Expired
- 1982-05-21 NL NL8220164A patent/NL8220164A/nl not_active Application Discontinuation
- 1982-05-21 US US06/459,602 patent/US4696862A/en not_active Expired - Lifetime
- 1982-05-21 WO PCT/JP1982/000185 patent/WO1982004158A1/ja active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5030443B1 (ja) * | 1970-07-23 | 1975-10-01 | ||
JPS5433522B2 (ja) * | 1972-10-14 | 1979-10-22 | ||
JPS56851B2 (ja) * | 1973-07-24 | 1981-01-09 |
Also Published As
Publication number | Publication date |
---|---|
JPS6218970B2 (ja) | 1987-04-25 |
US4696862A (en) | 1987-09-29 |
EP0079391A4 (fr) | 1985-10-17 |
NL8220164A (nl) | 1983-04-05 |
EP0079391B1 (en) | 1987-12-02 |
GB2113898A (en) | 1983-08-10 |
GB2113898B (en) | 1985-05-01 |
GB8301832D0 (en) | 1983-02-23 |
JPS57191830A (en) | 1982-11-25 |
EP0079391A1 (en) | 1983-05-25 |
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