JPS63263618A - Magnetic recording head and magnetic recording system - Google Patents
Magnetic recording head and magnetic recording systemInfo
- Publication number
- JPS63263618A JPS63263618A JP9738987A JP9738987A JPS63263618A JP S63263618 A JPS63263618 A JP S63263618A JP 9738987 A JP9738987 A JP 9738987A JP 9738987 A JP9738987 A JP 9738987A JP S63263618 A JPS63263618 A JP S63263618A
- Authority
- JP
- Japan
- Prior art keywords
- head
- magnetic recording
- magnetic
- sliding
- protective film
- 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.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 54
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- 230000007797 corrosion Effects 0.000 claims abstract description 15
- 239000011241 protective layer Substances 0.000 claims abstract description 5
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 8
- 229910052703 rhodium Inorganic materials 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000010408 film Substances 0.000 description 27
- 239000010410 layer Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910000684 Cobalt-chrome Inorganic materials 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
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000010952 cobalt-chrome Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000007738 vacuum evaporation 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear
-
- 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
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁気記録ヘッドの改良に係り、特に耐蝕性、耐
媒体摺動性の向上を図ることを目的とするものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to improvement of a magnetic recording head, and particularly aims at improving corrosion resistance and medium sliding resistance.
従来より高密度記録化を図るために、金属薄膜を用いた
磁気記録媒体の研究開発や、これに適した磁気記録ヘッ
ドの研究開発が進められている。BACKGROUND ART In order to achieve higher density recording, research and development on magnetic recording media using thin metal films and magnetic recording heads suitable for this have been progressing.
この金属薄膜磁気記録媒体は、メッキ、イオンブレーテ
ィング、スパッタ、真空蒸着等の手法で、Ｃｏ、Ｆｅ、
Ｎｉ等の強磁性金属、または、これらの元素を主成分と
する合金を主体とする薄膜を。This metal thin film magnetic recording medium is produced using methods such as plating, ion blating, sputtering, and vacuum evaporation.
Thin films made mainly of ferromagnetic metals such as Ni or alloys containing these elements as main components.
高分子フィルム、アルミニウム、ガラスなどの非磁性材
料の基板上に形成させた記録媒体である。A recording medium formed on a substrate of nonmagnetic material such as polymer film, aluminum, or glass.
また、磁気記録ヘッドは、Ｆｅ系合金、Ｃｏ系合金など
高飽和磁束密度、高透磁率である材料を主磁極とするも
のである。このような媒体とヘッドの組み合わせにより
、高密度記録ができることは、既にわかっている。しか
し、この組み合わせを用いた磁気記録システムにおいて
は、媒体、ヘッドの耐摺動性が悪い、耐蝕性が悪い、な
どの点が、実用化への問題点となっている。Further, the magnetic recording head has a main pole made of a material having a high saturation magnetic flux density and high magnetic permeability, such as an Fe-based alloy or a Co-based alloy. It is already known that high-density recording is possible with such a combination of a medium and a head. However, in a magnetic recording system using this combination, problems such as poor sliding resistance of the medium and head and poor corrosion resistance pose problems for practical use.
このような問題点を解決する手段として、磁性体層上に
耐酸化性のある金属、例えば、Ａｕ。As a means to solve such problems, an oxidation-resistant metal such as Au is used on the magnetic layer.
Ｐｔ、Ｒｈ、Ｐｄ、Ｃｒ、ＡＱ、Ｓｉ等の材料から成る
保護層を形成する手法（特開昭５３−４０５０５号、特
開昭５７−１７６５３７号）や磁性体膜の表面を窒化し
たり、酸化したりすることにより強化する手法（特開昭
５４−１４３１１号）などが提案されている。Methods of forming a protective layer made of materials such as Pt, Rh, Pd, Cr, AQ, and Si (Japanese Patent Laid-Open Nos. 53-40505 and 57-176537), nitriding the surface of a magnetic film, A method of strengthening by oxidation (Japanese Unexamined Patent Publication No. 14311/1983) has been proposed.
上記従来技術は、磁気記録システムの耐摺動性の向上、
媒体の耐蝕性の向上を、媒体表面の強化により、行なお
うとするものであり、磁気記録ヘッドの耐摺動性、耐蝕
性という点について配慮がされておらず、磁気記録シス
テム全体としての耐摺動性、耐蝕性が実用化に充分なも
のになっていないという問題点があった。また媒体の耐
摺動性を十分なものにするためには、その保護膜厚は少
なくとも２００人程度となくてはならず、電磁変換特性
の劣化が生ずるという問題もあった。The above conventional technology improves the sliding resistance of a magnetic recording system,
This is an attempt to improve the corrosion resistance of the medium by strengthening the surface of the medium, but no consideration has been given to the sliding resistance and corrosion resistance of the magnetic recording head, and the durability of the magnetic recording system as a whole has deteriorated. There was a problem that the sliding properties and corrosion resistance were not sufficient for practical use. In addition, in order to obtain sufficient sliding resistance of the medium, the thickness of the protective film must be at least about 200 people, which poses the problem of deterioration of electromagnetic conversion characteristics.
本発明の目的は、上述した従来技術の問題点を解消し、
ヘッドと磁性層間のスペーシングを大きくすることなく
、システム全体の耐摺動性を向上することにある。The purpose of the present invention is to solve the problems of the prior art described above,
The objective is to improve the sliding resistance of the entire system without increasing the spacing between the head and the magnetic layer.
上記目的は、磁気記録ヘッド摺動面上に耐摺動性、耐蝕
性保護層を設けることにより達成される。The above object is achieved by providing a sliding and corrosion-resistant protective layer on the sliding surface of the magnetic recording head.
保護層に必要な条件は、良い耐蝕性、耐摺動性をもつこ
と、および電磁変換特性の低下を抑えるため膜厚ができ
るだけ小さいこと（１０００Å以下）である。The necessary conditions for the protective layer are that it has good corrosion resistance and abrasion resistance, and that the film thickness is as small as possible (1000 Å or less) in order to suppress deterioration of electromagnetic conversion characteristics.
本発明者らの実験によると、保護膜材料としてＢ、Ｓｉ
、ＢａＣ，ＳｉＣ，Ｃ，Ｒｈ、、ｐｔ。According to experiments conducted by the present inventors, B, Si, and
,BaC,SiC,C,Rh,,pt.
Ｚｒ０ｚ、ＡＱｚＯａ 、５ｉｆｔ、ＢＮ、Ｔ’ｉＣ。Zr0z, AQzOa, 5ift, BN, T’iC.
ＷＣなとの材料、もしくはこれらのうち数種から成る材
料を用いると特に優れた効果が得られることがわかった
。また、磁気記録ヘッドと保護膜層の間に中間層として
、Ｃｒ 、 Ｔ ｉ’ 、 Ａ ｎ 、 Ｚｒ 。It has been found that particularly excellent effects can be obtained by using a material such as WC or a material consisting of several of these materials. Furthermore, Cr, Ti', An, and Zr are used as an intermediate layer between the magnetic recording head and the protective film layer.
Ｔａ、Ｎｂ、Ｖｔ Ｗ、Ｓｉ、Ｍｏ、Ｍｎ、もしくは、
これらの酸化物、炭化物から成る物質の少なくとも１種
、もしくは、これらのうち数種からなる材料を用いるこ
とにより更に優れた効果が得られる。Ta, Nb, Vt W, Si, Mo, Mn, or
Even better effects can be obtained by using a material consisting of at least one or several of these oxides and carbides.
ヘッド摺動面に保護膜を設けることにより、媒体表面と
接触する物質は、保護膜物質となり、また、ヘッド表面
の段差は平担化される。一般に、粗な表面による摩擦時
にはその摩耗量が多く、また、摩擦する２物質間での摩
耗量は、その２物質の組み合わせに著しく依存しており
、時に同種材料の摩擦時の摩耗量は多い、高密度磁気記
録に有望だとされている媒体用磁性材料としてＣｏ系合
金があり、またＣｏ系合金は、ヘッド用磁性材料として
も有望視されている。実際、これらを用いた時の磁気記
録システムの耐摺動性は著しく劣ったものとなっている
。ヘッド摺動面に保Ｗ１膜を設けることは、前述の若く
、耐摺動性の劣った２物質間の直接接触を防ぐことにな
り、これに加えてヘッド表面を平担化して良い摺動条件
をつくることになる。このような効果の結果、磁気記録
システムの耐摺動性は、ヘッド上に保護膜層を設けるこ
とにより向上する。By providing a protective film on the head sliding surface, the material that comes into contact with the medium surface becomes the protective film material, and steps on the head surface are flattened. In general, when friction occurs on a rough surface, the amount of wear is large; in addition, the amount of wear between two materials that rub together depends significantly on the combination of the two materials, and sometimes when similar materials rub, the amount of wear is large. Co-based alloys are a magnetic material for media that is considered promising for high-density magnetic recording, and Co-based alloys are also considered promising as magnetic materials for heads. In fact, the sliding resistance of the magnetic recording system using these is extremely poor. Providing the protective W1 film on the head sliding surface prevents direct contact between the two materials mentioned above, which are young and have poor sliding resistance. It will create conditions. As a result of these effects, the sliding resistance of the magnetic recording system is improved by providing a protective film layer on the head.
以下、本発明を実施例によって説明する。 Hereinafter, the present invention will be explained by examples.
実施例１
磁気記録ヘッド上に各種保護膜をスパッタ法により設け
、第１図に示す構造の磁気記録ヘッドを作製した。第１
図は主磁極コア４、磁性補助部材３、補助磁極コア５か
らなる垂直磁気記録用へラドコアに保護ｗ！４Ｍを設け
た実施例の断面図である。Example 1 Various protective films were provided on a magnetic recording head by sputtering to produce a magnetic recording head having the structure shown in FIG. 1. 1st
The figure is protected by a rad core for perpendicular magnetic recording consisting of a main magnetic pole core 4, a magnetic auxiliary member 3, and an auxiliary magnetic pole core 5! It is a sectional view of an example provided with 4M.
主磁極コア４としては、高飽和磁束密度、高透磁率材で
あるＧｏ系非晶質合金を用い、補助磁極コア５としては
、高透磁率材であるＭ ｎ −Ｚ ｎフェライトを用い
ている。また１機械的強度を上げるために使用している
補助部材２，３のうち磁性補助部材３にはＭ ｎ −７
，ｎフェライトを、非磁性補助部材２にはガラスを用い
ている。保護膜１の厚さを２０．５０，１００人とした
３種のヘッドを作製し、また比較例として、保護膜を設
けないヘッドを用意した。As the main magnetic pole core 4, a Go-based amorphous alloy, which is a material with high saturation magnetic flux density and high magnetic permeability, is used, and as the auxiliary magnetic pole core 5, Mn-Zn ferrite, which is a high magnetic permeability material, is used. . Furthermore, among the auxiliary members 2 and 3 used to increase the mechanical strength, the magnetic auxiliary member 3 has M n −7
, n ferrite, and glass is used for the non-magnetic auxiliary member 2. Three types of heads were prepared in which the thickness of the protective film 1 was 20,50, and 100, and as a comparative example, a head without a protective film was prepared.
上記のそれぞれの試料について、以下に示す耐摺動性お
よび耐蝕性テストを行なった。The following sliding resistance and corrosion resistance tests were conducted on each of the above samples.
耐摺動性テストは、各試料をディスク上で摺動し、再生
出力が、テスト開始時の７０％となった時点での総回転
数の測定、および摺動後のヘッド。In the sliding resistance test, each sample was slid on a disk, and the total number of revolutions was measured when the playback output reached 70% of the start of the test, and the head after sliding.
媒体表面のｔｍ １Ｍすることにより行なった。ヘッド
荷重は４０ｇ、ヘッドとディスクの相対速度は２ｍ／ｓ
としている。また、評価には、ポリイミド基板上にＣｏ
Ｃｒ磁化膜を設けたフロッピディスクと、アルミニウ
ム基板上に１９ｗｔ％Ｆａ−ＮｉとＣｏ Ｃｒ磁化膜を
積層したリジットディスクを用いている。耐蝕性テスト
は、各試料を相対湿度６０％、温度６０℃の環境中に３
ケ月放置した後、その表面を光学顕微鏡で観察すること
により行なった。This was carried out by setting the tm of the medium surface to 1M. Head load is 40g, relative speed between head and disk is 2m/s
It is said that In addition, for evaluation, Co
A floppy disk provided with a Cr magnetized film and a rigid disk in which 19 wt % Fa-Ni and Co Cr magnetized films were laminated on an aluminum substrate were used. Corrosion resistance tests were carried out by placing each sample in an environment with a relative humidity of 60% and a temperature of 60°C for 3
After leaving it for several months, the surface was observed using an optical microscope.
耐摺動性テストの結果を第１表に示す、この表第１表
は、保護材料として、Ｂを用い、媒体としてフロッピデ
ィスクを用いた時の結果である。この表から明らかなよ
うに、ヘッド上に２０人という極薄の保護膜を設けるこ
とにより磁気記録システム全体の耐摺動性は若しく向上
する。また、耐蝕性テストでも、保護膜を設けてない試
料には、明らかな腐蝕のあとが認められるが、保護膜を
設けた試料では、腐蝕が認められないことを確認してい
る。The results of the sliding resistance test are shown in Table 1. Table 1 shows the results when B was used as the protective material and a floppy disk was used as the medium. As is clear from this table, by providing a protective film as thin as 20 on the head, the sliding resistance of the entire magnetic recording system is somewhat improved. In addition, in the corrosion resistance test, clear marks of corrosion were observed in the samples without a protective film, but it was confirmed that no corrosion was observed in the samples with a protective film.
なお、他の保護膜材料（Ｓｉ、ＮａＣ，ＳｉＣ。In addition, other protective film materials (Si, NaC, SiC, etc.)
Ｃ，Ｒｈ、Ｐｔ、Ｚｒ０ｚ、ＡＱｚＯｓ、５ｉＯｚ＋Ｒ
Ｎ、ＴｉＣ，ＷＣ）でも同様の効果があることを確認し
ており、また、リジットディスクを用いて、コンタクト
スタートストップ（ＣＳＳ）時の耐久性を向上すること
が確認できた。C, Rh, Pt, Zr0z, AQzOs, 5iOz+R
It has been confirmed that similar effects can be obtained with N, TiC, WC), and it has also been confirmed that durability during contact start-stop (CSS) can be improved by using a rigid disk.
実施例２
実施例１で述べたヘッドを、保護膜を設けたＣｏＣｒフ
ロッピ媒体と組み合わせて、実施例１で示した耐摺動性
テストを行なった。なお、媒体としては、ポリイミド基
板上にＣｏＣｒ磁化膜。Example 2 The head described in Example 1 was combined with a CoCr floppy medium provided with a protective film, and the sliding resistance test shown in Example 1 was conducted. Note that the medium is a CoCr magnetized film on a polyimide substrate.
Ｚｒ０ｚ保護膜を積層したものを用いており、評価媒体
として、５０，１００，２００人の３種の膜厚のものを
用意した。A layered Zr0z protective film was used, and three types of film thicknesses of 50, 100, and 200 layers were prepared as evaluation media.
本実施例にもとづく耐摺動性テストの結果を第２表に示
す。この表から明らかなように、ヘッド上に２ｏ人の保
護膜を設け、媒体上に５０人の保２！膜を設けることに
より、従来の媒体側だけに２００人の保護膜を設けた場
合に対してシステムの耐摺動性が極めて向上することが
わかる。この第 ２ 表
ことは、ヘッドと媒体の双方に、保護膜を設けるという
手法が、ヘッド、磁性層間の距離を大きくすることなく
耐摺動性を向上できる方法であることを示している。Table 2 shows the results of the sliding resistance test based on this example. As is clear from this table, a protective film of 20 people is provided on the head, and a protection film of 50 people is provided on the medium! It can be seen that by providing the membrane, the sliding resistance of the system is significantly improved compared to the conventional case where a 200-layer protective membrane is provided only on the medium side. Table 2 shows that providing a protective film on both the head and the medium is a method that can improve the sliding resistance without increasing the distance between the head and the magnetic layer.
なお、他の材料（Ｓｉ、ＢａＣｔ ５ｉＣｔ ＣｔＲｈ
、Ｐｔ、Ｚｒｏｔ、Ａ（ｌｚｏｓ、ＳｉＯｘ、ＢＮ。In addition, other materials (Si, BaCt 5iCt CtRh
, Pt, Zrot, A (lzos, SiOx, BN.
ＴｉＣ，ＷＣ）をヘッド上に設けても、同様の効果があ
ることが同様の実験により確認できた。Similar experiments have confirmed that the same effect can be obtained even if TiC, WC) is provided on the head.
以上詳細に説明したごとく、本発明によれば、ヘッド磁
極部の耐蝕性を向上できるだけではなく、システム全体
の耐摺動性を向上させることができる。また、保護膜を
設けた媒体と組み合わせて用いると、ヘッドと媒体磁性
層間のスペーシングを大きくすることなく、システムの
耐摺動性を向上することができる。As described in detail above, according to the present invention, not only the corrosion resistance of the head magnetic pole portion can be improved, but also the sliding resistance of the entire system can be improved. Furthermore, when used in combination with a medium provided with a protective film, the sliding resistance of the system can be improved without increasing the spacing between the head and the medium magnetic layer.
第１図は、本発明による磁気記録ヘッドの構造を示す断
面図である。
１・・・保護膜、２・・・非磁性補助部材、３・・・磁
性補助部材、４・・・主磁極コア、５・・・補助磁極コ
ア、６・・・まき線窓。FIG. 1 is a sectional view showing the structure of a magnetic recording head according to the present invention. DESCRIPTION OF SYMBOLS 1... Protective film, 2... Non-magnetic auxiliary member, 3... Magnetic auxiliary member, 4... Main magnetic pole core, 5... Auxiliary magnetic pole core, 6... Window window.
Claims (1)
その摺動面上に、Ｂ、Ｓｉ、Ｂ＿４Ｃ、ＳｉＣ、Ｃ、Ｒ
ｈ、Ｐｔ、ＺｒＯ＿２、Ａｌ＿２Ｏ＿３、ＳｉＯ＿２、
ＢＮ、ＴｉＣ、ＷＣからなる物質のうち、少なくとも１
種から成る耐摺動耐食性保護層を設けたことを特徴とす
る磁気記録ヘッド。 ２、表面に耐摺動性保護膜を有する磁気記録媒体と、記
録媒体との摺動面に耐摺動性保護膜を形成して、磁気ヘ
ッドを有してなることを特徴とする磁気記録システム。[Claims] 1. In a magnetic recording head in contact with a magnetic recording medium,
On the sliding surface, B, Si, B_4C, SiC, C, R
h, Pt, ZrO_2, Al_2O_3, SiO_2,
At least one of the substances consisting of BN, TiC, and WC
1. A magnetic recording head characterized by being provided with a sliding and corrosion-resistant protective layer made of seeds. 2. A magnetic recording comprising a magnetic recording medium having a sliding resistant protective film on its surface, a sliding resistant protective film formed on the sliding surface of the recording medium, and a magnetic head. system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9738987A JPS63263618A (en) | 1987-04-22 | 1987-04-22 | Magnetic recording head and magnetic recording system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9738987A JPS63263618A (en) | 1987-04-22 | 1987-04-22 | Magnetic recording head and magnetic recording system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63263618A true JPS63263618A (en) | 1988-10-31 |
Family
ID=14191161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9738987A Pending JPS63263618A (en) | 1987-04-22 | 1987-04-22 | Magnetic recording head and magnetic recording system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63263618A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH076340A (en) * | 1993-06-17 | 1995-01-10 | Nec Corp | Magnetic head and its production |
| US5552204A (en) * | 1995-01-13 | 1996-09-03 | International Business Machines Corporation | Magnetic disk with boron carbide overcoat layer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5619517A (en) * | 1979-07-25 | 1981-02-24 | Matsushita Electric Ind Co Ltd | Magnetic head |
| JPS57179934A (en) * | 1981-04-30 | 1982-11-05 | Canon Inc | Magnetoresistance effect type reproducing head |
| JPS57179921A (en) * | 1981-04-28 | 1982-11-05 | Canon Inc | Vertical magnetic recording head |
| JPS61211807A (en) * | 1985-03-18 | 1986-09-19 | Hitachi Maxell Ltd | Magnetic head |
| JPS6233759A (en) * | 1985-08-05 | 1987-02-13 | Kao Corp | Production of carbon film |
-
1987
- 1987-04-22 JP JP9738987A patent/JPS63263618A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5619517A (en) * | 1979-07-25 | 1981-02-24 | Matsushita Electric Ind Co Ltd | Magnetic head |
| JPS57179921A (en) * | 1981-04-28 | 1982-11-05 | Canon Inc | Vertical magnetic recording head |
| JPS57179934A (en) * | 1981-04-30 | 1982-11-05 | Canon Inc | Magnetoresistance effect type reproducing head |
| JPS61211807A (en) * | 1985-03-18 | 1986-09-19 | Hitachi Maxell Ltd | Magnetic head |
| JPS6233759A (en) * | 1985-08-05 | 1987-02-13 | Kao Corp | Production of carbon film |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH076340A (en) * | 1993-06-17 | 1995-01-10 | Nec Corp | Magnetic head and its production |
| US5552204A (en) * | 1995-01-13 | 1996-09-03 | International Business Machines Corporation | Magnetic disk with boron carbide overcoat layer |
| US5750231A (en) * | 1995-01-13 | 1998-05-12 | International Business Machines Corporation | Magnetic disk with boron carbide overcoat layer |
| US5897931A (en) * | 1995-01-13 | 1999-04-27 | International Business Machines Corporation | Magnetic disk with boron carbide overcoat layer |
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