DE3619254A1 - Magnetkopf-kern - Google Patents
Magnetkopf-kernInfo
- Publication number
- DE3619254A1 DE3619254A1 DE19863619254 DE3619254A DE3619254A1 DE 3619254 A1 DE3619254 A1 DE 3619254A1 DE 19863619254 DE19863619254 DE 19863619254 DE 3619254 A DE3619254 A DE 3619254A DE 3619254 A1 DE3619254 A1 DE 3619254A1
- Authority
- DE
- Germany
- Prior art keywords
- weight
- magnetic head
- chromium
- head core
- composition
- 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
- 239000011651 chromium Substances 0.000 claims description 26
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 25
- 229910052804 chromium Inorganic materials 0.000 claims description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000011162 core material Substances 0.000 claims description 14
- 239000010409 thin film Substances 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000010894 electron beam technology Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000010408 film Substances 0.000 description 15
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 230000004907 flux Effects 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910000702 sendust Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910002796 Si–Al Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005566 electron beam evaporation Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
- H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
- H01F10/14—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel
- H01F10/142—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel containing Si
- H01F10/145—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel containing Si containing Al, e.g. SENDUST
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/20—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by evaporation
-
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12458—All metal or with adjacent metals having composition, density, or hardness gradient
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Magnetic Heads (AREA)
- Thin Magnetic Films (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12552285A JPS61284806A (ja) | 1985-06-10 | 1985-06-10 | 磁気ヘツドコア材料 |
| JP12552385A JPS61284807A (ja) | 1985-06-10 | 1985-06-10 | 磁気ヘツドコア材料 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3619254A1 true DE3619254A1 (de) | 1986-12-11 |
| DE3619254C2 DE3619254C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-07-05 |
Family
ID=26461945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19863619254 Granted DE3619254A1 (de) | 1985-06-10 | 1986-06-07 | Magnetkopf-kern |
Country Status (3)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2040741C (en) * | 1990-04-24 | 2000-02-08 | Kiyonori Suzuki | Fe based soft magnetic alloy, magnetic materials containing same, and magnetic apparatus using the magnetic materials |
| JP3231149B2 (ja) * | 1993-07-30 | 2001-11-19 | アルプス電気株式会社 | ノイズフィルタ |
| US6150046A (en) | 1997-01-31 | 2000-11-21 | Alps Electric Co., Ltd. | Combination magnetoresistive/inductive thin film magnetic head and its manufacturing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2539002B2 (de) * | 1974-09-26 | 1978-01-26 | The Foundation the Research Insti tute of Electric and Magnetic Alloys Sendai (Japan) | Verwendung von legierungen zur herstellung von magnetkoepfen |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB414657A (en) * | 1932-02-06 | 1934-08-07 | Kinzoku Zairyo Kenkyusho | Magnetic alloys |
| DE1408465A1 (de) * | 1958-11-17 | 1968-10-03 | Edmond Adams | Gesinterte Magnet-Legierungen und Verfahren zu ihrer Herstellung sowic daraus erstellte Erzeugnisse,insbesondere Tonaufnahme-,Wiedergabe- und Loeschkoepfe |
| DE2255975C2 (de) * | 1972-11-15 | 1985-02-07 | Eastman Kodak Co., Rochester, N.Y. | Anwendung des Verfahrens der Nitridierung von Eisen-Legierungsteilchen auf bestimmte Legierungspulver für die Herstellung von Polhörnern von Magnetköpfen |
| JPS5214516A (en) * | 1975-07-26 | 1977-02-03 | Furukawa Electric Co Ltd:The | Wear resistant alloys with a high permeability |
| GB1513298A (en) * | 1975-09-05 | 1978-06-07 | Furukawa Electric Co Ltd | Wear-resisting high permeability alloy |
| JPS5357118A (en) * | 1976-11-02 | 1978-05-24 | Nippon Musical Instruments Mfg | Magnetic material |
| JPS5882508A (ja) * | 1981-11-12 | 1983-05-18 | Hitachi Metals Ltd | 磁性薄膜材料 |
| US4819113A (en) * | 1984-03-29 | 1989-04-04 | Sony Corporation | Magnetic transducer head with inclined magnetic gap |
| JPS60220914A (ja) * | 1984-04-18 | 1985-11-05 | Sony Corp | 磁性薄膜 |
| JPS60220913A (ja) * | 1984-04-18 | 1985-11-05 | Sony Corp | 磁性薄膜 |
| JPH0652684B2 (ja) * | 1984-07-19 | 1994-07-06 | ソニー株式会社 | 磁性合金薄膜 |
-
1986
- 1986-06-06 US US06/871,273 patent/US4735865A/en not_active Expired - Fee Related
- 1986-06-07 DE DE19863619254 patent/DE3619254A1/de active Granted
- 1986-06-10 GB GB8614075A patent/GB2176496B/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2539002B2 (de) * | 1974-09-26 | 1978-01-26 | The Foundation the Research Insti tute of Electric and Magnetic Alloys Sendai (Japan) | Verwendung von legierungen zur herstellung von magnetkoepfen |
Non-Patent Citations (1)
| Title |
|---|
| MAISSEL, L.J., GLANG, R., Handbook of thin film technology, McGraw-Hill, New York, 1970, S. 1-50 bis 1-54 u. S. 1-73 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US4735865A (en) | 1988-04-05 |
| GB2176496A (en) | 1986-12-31 |
| GB2176496B (en) | 1989-07-05 |
| GB8614075D0 (en) | 1986-07-16 |
| DE3619254C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |