JPS6035328A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6035328A JPS6035328A JP58144115A JP14411583A JPS6035328A JP S6035328 A JPS6035328 A JP S6035328A JP 58144115 A JP58144115 A JP 58144115A JP 14411583 A JP14411583 A JP 14411583A JP S6035328 A JPS6035328 A JP S6035328A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic layer
- magnetic
- recording medium
- corrosion resistance
- magnetic recording
- 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
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 6
- 238000007736 thin film deposition technique Methods 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 22
- 230000007797 corrosion Effects 0.000 abstract description 22
- 238000007740 vapor deposition Methods 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 15
- 229910045601 alloy Inorganic materials 0.000 abstract description 11
- 239000000956 alloy Substances 0.000 abstract description 11
- 229910052720 vanadium Inorganic materials 0.000 abstract description 6
- 229910020630 Co Ni Inorganic materials 0.000 abstract description 4
- 229910002440 Co–Ni Inorganic materials 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000007747 plating Methods 0.000 abstract description 3
- 238000004544 sputter deposition Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000013112 stability test Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 229910017356 Fe2C Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 235000006732 Torreya nucifera Nutrition 0.000 description 1
- 244000111306 Torreya nucifera Species 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229920000728 polyester Polymers 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
- 230000002265 prevention Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000010998 test method Methods 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
- G11B5/62—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
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/656—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Co
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は薄膜堆積法によって形成される磁気記録媒体、
特に耐蝕性と磁性層の特性安定性に優れた磁気記録媒体
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a magnetic recording medium formed by a thin film deposition method;
In particular, the present invention relates to a magnetic recording medium having excellent corrosion resistance and characteristic stability of a magnetic layer.
近年、真空蒸着法、スパッタリング法、メッキ法等の薄
膜堆積法例より磁気記録媒体を製造する研死開発が活発
化している。これらの製法によって作られた磁気記録媒
体は、■残留磁束密度が龜い、■保磁力を大さくできる
、■磁性層を薄くできる等の篩田厩記録化のだめの条件
を非′帛によく満足している。、、健来、この種の記録
ｕ体の磁性椙料としては、ＣＯとＮｉを主成分とする合
金が主に用いられており、なかでも、Ｃｏ−２０ｗｔ％
Ｎｉ合金が多く検討されている。その理由は、この合金
が比較的耐蝕性が良いこと、７Ｑｗｔ９％以上のＣＯを
含む合金はり、ｃ、ｐ ＠イ造をもち磁気異方性？コノ
トロールしやすく面内異方性を卓越させることが容易で
あるためといわれる。しかしながら、この合金はＣＯを
７０％以上、通常は８０％前後も含んでいるために極め
てＩ′ＦｌｌｉｉＩ＋ＩＩであり、しかも Ｃｏは国際
情勢の変化により価格が大きく変動するという問題を有
している。また、耐蝕性も厳しい環境条件に対しては不
十分である。BACKGROUND ART In recent years, research and development has become more active in producing magnetic recording media using thin film deposition methods such as vacuum evaporation, sputtering, and plating. Magnetic recording media made by these manufacturing methods have a high residual magnetic flux density, a large coercive force, and a thin magnetic layer. Is pleased. Since then, alloys containing CO and Ni as main components have been mainly used as magnetic materials for this type of recording u-body, and among them, Co-20wt%
Many Ni alloys are being studied. The reason for this is that this alloy has relatively good corrosion resistance, is an alloy beam containing 7Qwt 9% or more of CO, and has magnetic anisotropy. This is said to be because it is easy to control and achieve excellent in-plane anisotropy. However, since this alloy contains 70% or more of CO, usually around 80%, it is extremely I'Fllii+II, and Co has the problem that its price fluctuates greatly due to changes in the international situation. Furthermore, the corrosion resistance is also insufficient under severe environmental conditions.
而して、本発明は上記欠点を改善すべくＣＯの含有量を
少なくシ、安価で安定供給が可能な磁気記録媒体を提供
するとともに、その磁気特性、耐蝕性おまひ磁性層の特
性安定性においても優れた性能を有する磁気記録媒体を
提供することを主／こる目的とする。Therefore, in order to improve the above-mentioned drawbacks, the present invention provides a magnetic recording medium with a low CO content, which can be inexpensively and stably supplied, and also improves the magnetic properties and the characteristic stability of the corrosion-resistant magnetic layer. The main objective is to provide a magnetic recording medium that has excellent performance in the field of technology.
本発明は尚膜堆積法により形成される磁気記録媒体にお
いて、磁性層が１・ｅを主成分として、Ｃｏ、Ｎｉおよ
びＣｒを名み、さらにＶ’、 Ｎｂ、 Ｔａ 。The present invention provides a magnetic recording medium formed by a film deposition method, in which the magnetic layer mainly contains 1.e, Co, Ni, and Cr, and further contains V', Nb, and Ta.
Ｍｏ、Ｗの少なくとも一種類以上を含むことを特徴とす
るものであり、抵抗加熱蒸着法、誘導加熱蒸古法、電子
ビーム蒸着法、スパッタリング法、イオンプレーテづフ
グ法、メッキ法等ケ利用して形成できるものである。It is characterized by containing at least one of Mo and W, and can be used by resistance heating vapor deposition method, induction heating vapor deposition method, electron beam vapor deposition method, sputtering method, ion plating method, plating method, etc. It can be formed by
磁性泗杓料として、ＣＯ元素とＦｅ元素の和が５０ｗｔ
、″；ｌθ以上で Ｆｅを主成分となるようにＣＯ元素
をＦｅ ノｃ素にＩ６換することにより磁気的特性は従
来のＣｏ−１Ｎ１合金と同等以上のものの得られること
が認めらｎ７た。しかし、ＣＯ元素をＦｅ フし累で置
換することにより耐蝕性が劣化するが、Ｃｒ元素の添加
が耐蝕性の向上に有効である。さらに、Ｃｒ元素と同時
に、Ｖ 、 Ｎｂ、Ｔａ、＋ｖ＋ｏ、Ｗの少なくとも一
種類以上の元素を添加することにより耐蝕性の向上とと
もに磁気特性の安定性の改善されることが認めら汎た。As magnetic ladle material, the sum of CO element and Fe element is 50wt.
It was found that magnetic properties equivalent to or better than those of conventional Co-1N1 alloys can be obtained by replacing the CO element with I6 so that Fe becomes the main component at lθ or more. However, the corrosion resistance deteriorates when the CO element is replaced with Fe.However, the addition of the Cr element is effective in improving the corrosion resistance.Furthermore, at the same time as the Cr element, V, Nb, Ta, +v+o It has been widely recognized that by adding at least one element of W, corrosion resistance and stability of magnetic properties are improved.
本発明に用いる磁注利オ→において、Ｆｅ、Ｎｉ。In the magnetic flux used in the present invention, Fe and Ni are used.
Ｃ’ｒ 、 Ｖ 、 Ｎｂ 、 Ｔａ 、 Ｍｏ 、
Ｗの各元素は各々次の作用をする。Ｆｅ２Ｃ素は原子１
個あたりの磁気モーメント全高め、残留磁束密度Ｂｒを
増加させると同時に、展！Ｊ、Ｂ地性を増し磁性層のワ
レ、ヒビの発生を防止する。−万、ｔ９ｆＪ記し／こ如
くＪパｅ元素が増すと耐蝕性が急激に悪くなると同時に
、１３ｒを増加させる効果はむしろ低１；する。また、
Ｎ１は耐蝕性を向上させるとともに展延性を同上させ磁
性層のワレ、ヒビの発生を防止する。また、Ｃｒは耐蝕
性の向上に寄与する。また、Ｖ 、 Ｎｂ、’ｌ”ａ。C'r, V, Nb, Ta, Mo,
Each element of W has the following effect. Fe2C element is atom 1
At the same time as increasing the total magnetic moment per piece and increasing the residual magnetic flux density Br, the exhibition! J, B Increases the ground quality and prevents cracks and cracks in the magnetic layer. - 10,000, t9fJ / As shown, as the J and E elements increase, the corrosion resistance deteriorates rapidly, and at the same time, the effect of increasing 13r is rather low. Also,
N1 improves corrosion resistance, improves malleability, and prevents cracks and cracks in the magnetic layer. Further, Cr contributes to improving corrosion resistance. Also, V, Nb, 'l”a.
ｈＪｏ、Ｗは単独、あるいは組み合わせて添加すること
により耐蝕性を一層向上きせる、−また、Ｃｒは蒸気圧
がＦｅ、Ｃｏ、およびＮｉと大きく異なるために磁性層
の特性に変動を生じ易いが、Ｃｒを■。Corrosion resistance can be further improved by adding hJo and W singly or in combination.Also, Cr tends to cause fluctuations in the properties of the magnetic layer because its vapor pressure is significantly different from that of Fe, Co, and Ni. ■Cr.
Ｎｂ 、 ’ｌ’ａ 、 Ｍｏ 、Ｗで一部置換するこ
とによシ磁気特性の安定化を図ることができる。ただし
、非磁性元素の添加量が多すぎるとＢｒが減少する等、
磁性層の磁気特性を低下させる。By partially substituting Nb, 'l'a, Mo, or W, the magnetic properties can be stabilized. However, if the amount of non-magnetic elements added is too large, Br will decrease, etc.
Decrease the magnetic properties of the magnetic layer.
以上の結果、良好な磁性層の組成は、ホ［１成式％式％
Ｎｂ 、 ’Ｊ、’ａ 、 Ｍｏ 、 Ｗから選ばれる
少なくとも一種類以上の元素）において、重倉組成比で
０〈ｘく０５．０．０５ ＜、 ａ ＜：０．２．０．
０１ りｂ ＜： ０．１５、および０．００５ ＜、
ｃ ＜、 ０．１５の軛囲である。！持に、Ｃｒがｌ
〜５ ｖｖｔ、％、Ｘが２〜１２Ｗｔ、％でかつＣｒ
とＸの第１】が１５ｗｔ、％以下、Ｃｏが２０〜３０ｗ
ｔ、％、Ｎｉが７〜１５ｗｔ０％、残りがＬ＋”ｅの組
成が好適である。As a result of the above, the composition of a good magnetic layer is 0〈 ku05.0.05 <, a <:0.2.0.
01 Rib <: 0.15, and 0.005 <,
The yoke is c <, 0.15. ! At the same time, Cr is l.
~5 vvt,%, X is 2 to 12Wt,% and Cr
and X's 1st] is 15wt, % or less, Co is 20~30w
A suitable composition is 7 to 15 wt 0% of Ni and the remainder is L+''e.
以下、実施例により本発明全説明する。The present invention will be fully explained below with reference to Examples.
第１図は磁気ｈピ録奴体の１つである蒸着テープの製造
装置を示す。真空槽ｌ内に、フィルム巻出し軸２、巻取
り軸３、中間フリーローラ４、冷却キｈ′ン５、蒸着材
料収納容器７、間予ビーム発生＃￥８が配置されている
。輻］、 ００ ｍｍ、、厚さ１５μｍのポリエチレン
テレフタレートフィルム９は、フィルム巻出し側１２か
ら９１間フリーローラ４、および冷却キャン５を経てフ
ィルム巻取す軸３に送られる。蒸着材料６は蒸着材料収
納容器７内に入れられ、冷却キャ１５と対向して配置さ
れ、電子ビーム発生ＹＪ！ｆｉ、８刀為らの電子ビーム
により加熱される。加熱された蒸着材料は蒸気流６′と
なり、冷却キャー′５」二のフィルム９に付着して磁性
層ヶ形成するが、防着板１１によりフィルム９上に到達
する蒸気流６′の入射角が６０°〜９０°に制限される
。FIG. 1 shows an apparatus for manufacturing a vapor-deposited tape, which is one type of magnetic recording material. In the vacuum chamber 1, a film unwinding shaft 2, a winding shaft 3, an intermediate free roller 4, a cooling can 5, a vapor deposition material storage container 7, and an intermediate beam generator #8 are arranged. A polyethylene terephthalate film 9 with a thickness of 15 μm is sent from the film unwinding side 12 through a free roller 4 and a cooling can 5 to a shaft 3 for winding the film. The evaporation material 6 is placed in the evaporation material storage container 7, which is placed facing the cooling container 15, and generates an electron beam YJ! fi, 8 It is heated by the electron beam of Katatae et al. The heated vapor deposition material becomes a vapor flow 6' and adheres to the film 9 of the cooling carrier '5' to form a magnetic layer. is limited to 60° to 90°.
〔第１実施例〕
蒸着材料６に、１．＋’ｅ、Ｃｏ、Ｎｉ 、Ｃｒ、およ
び■の合金金用い、第１図に示した装置により蒸着テー
プを製造した。真空槽ｌ内は排気装置１０により蒸着中
の真空度全ｌＸｌ０〜５ Ｘ Ｉ Ｑ’ Ｔｏｕｒに保
持した。フィルム送り速度は和分１０．ｍで、形成され
た磁性層の厚さはおよそ１．００ ＯＡである。第２図
は、上記の製造法により作製した蒸着テープの磁性層の
組成と耐蝕性および特性安定性（出力変動）試験の結果
である。耐蝕性試験は作製したテープを６０℃、９０％
の恒温恒湿槽内に１０００時間放置後の残留磁束密度Ｂ
ｒの変化を測定した。第２図中、◎はｆ３ｒの低下が５
％未満、○け５〜１０％、Ｘは１０％以上を表す。[First Example] In the vapor deposition material 6, 1. A vapor-deposited tape was manufactured using the apparatus shown in FIG. 1 using alloyed gold of +'e, Co, Ni, Cr, and ■. The inside of the vacuum chamber 1 was maintained at a total vacuum level of 1X10 to 5XIQ'Tour during vapor deposition by an exhaust device 10. The film feed speed is 10. m, and the thickness of the magnetic layer formed is approximately 1.00 OA. FIG. 2 shows the composition of the magnetic layer of the vapor-deposited tape produced by the above manufacturing method, and the results of corrosion resistance and characteristic stability (output fluctuation) tests. Corrosion resistance test was performed on the prepared tape at 60℃, 90%
Residual magnetic flux density B after being left in a constant temperature and humidity chamber for 1000 hours
The change in r was measured. In Figure 2, ◎ indicates a decrease in f3r of 5
%, ○ indicates 5 to 10%, and X indicates 10% or more.
−まだ、磁性層の特性安定性試験は家庭用Ｖ ’ｌ’
Ｒテンキを用いて記録再生し、テープ長さ１００ ｒｎ
内で５％以上の出力変動を生ずる区間の畏さ全測定した
。第２図中、◎は５％以上の出力変動を生じた区間が全
体の２％未満、○は２〜５％、△は６％以上であること
を衣す。-Still, the characteristics stability test of the magnetic layer is
Record and playback using R tenki, tape length 100 rn
All sections where output fluctuations of 5% or more occur were measured. In FIG. 2, ◎ means that the section in which the output fluctuation occurred by 5% or more is less than 2% of the total, ○ means 2 to 5%, and △ means 6% or more.
また、第３図は家庭用Ｖ Ｔ Ｒデツキを用いて記録再
生した時の再生出力であり、本発明のテープＡ６４の再
生出力が曲線２０で、比較のため同一条件で作製したＣ
ｏ −Ｎｉテープ腐５の再生出力が曲線２１で示されて
いる９本発明テープ／１６４は従来テープガロ５に比べ
、１〜３ ａｎ ４い再生出力が得られた。Fig. 3 shows the playback output when recording and playing back using a home VTR deck, and the playback output of tape A64 of the present invention is curve 20, and for comparison, the playback output of tape A64 of the present invention is curve 20.
The tape/164 according to the present invention, in which the reproduction output of the o-Ni tape rotor 5 is shown by curve 21, had a reproduction output 1 to 3 an 4 higher than that of the conventional tape gallo 5.
〔第２実施例〕
蒸着材料に、Ｆｅ 、 Ｃｏ 、 Ｎｉ 、 Ｃｒ、お
よびＮｂからなる合金を用い、第１実施例と同一方法に
よシ蒸着テープ？作製した。第４図は、磁性層の組成と
耐蝕性および特性安定性試験結果の関係を示したもので
ある。試験方法および評価は第１実施例と同じである。[Second Example] An alloy consisting of Fe, Co, Ni, Cr, and Nb was used as the vapor deposition material, and a vapor deposition tape was produced in the same manner as in the first embodiment. Created. FIG. 4 shows the relationship between the composition of the magnetic layer and the results of corrosion resistance and characteristic stability tests. The test method and evaluation were the same as in the first example.
〔第３実施例〕
蒸着材料に、ｌｉ’ｅ 、 Ｃｏ 、 Ｎｉ 、Ｃｒ
、およびＴａ からなる合金を用い、第１実施例と同一
方法により蒸着テープを作製した。第５図は、本実施例
の磁性層谷元素の組成と耐蝕性および特性安定性試験結
果である、
〔第４実施例〕
蒸着材料に、Ｆｅ、 Ｃｏ、 Ｎｉ、 Ｃｒ、およびＭ
Ｏからなる合金を用い、第１実施例と同一方法によシ蒸
着テープを作製した。第６図は、本実施例の磁性層各元
素の組成と耐蝕性および特性安定性試験結果の関係であ
る。[Third Example] Li'e, Co, Ni, Cr in the vapor deposition material
A vapor-deposited tape was produced by the same method as in the first example using an alloy consisting of , and Ta. FIG. 5 shows the composition of the magnetic layer valley elements and the corrosion resistance and characteristic stability test results of this example. [Fourth Example] Fe, Co, Ni, Cr, and M were used as the vapor deposition materials.
A vapor-deposited tape was produced using an alloy consisting of O in the same manner as in the first example. FIG. 6 shows the relationship between the composition of each element in the magnetic layer and the corrosion resistance and characteristic stability test results of this example.
〔第５実施例〕
蒸着材料に、Ｆｅ 、 Ｃｏ、 Ｎｉ 、 Ｃｒ 、お
よびＷ７Ｌらなる合金を用い、第１実施例と同一方法に
より蒸着テープ全作製した。第７図は、本実施例の磁性
層各元素の組成と、−耐蝕性および特性安定性試験結果
の関係である。[Fifth Example] All vapor deposition tapes were manufactured by the same method as in the first example using an alloy of Fe, Co, Ni, Cr, and W7L as the vapor deposition material. FIG. 7 shows the relationship between the composition of each element in the magnetic layer of this example and the results of corrosion resistance and characteristic stability tests.
〔第６実施例〕
蒸着材料に、Ｆ’ｅ、Ｃｏ、Ｎｉ、Ｃｒ１ＣＶとＮｂ、
あるいは、Ｖ、Ｎｂ、Ｍｏを添加した合金を用い、第１
実施例と同一方法により蒸着テープを作製した。第８図
は、本実施例の磁性層の各元素の組成と、耐蝕性および
特性安定性の関係である。[Sixth Example] The vapor deposition materials include F'e, Co, Ni, Cr1CV and Nb,
Alternatively, using an alloy containing V, Nb, and Mo, the first
A vapor-deposited tape was produced by the same method as in the example. FIG. 8 shows the relationship between the composition of each element in the magnetic layer of this example, corrosion resistance, and characteristic stability.
第２実施例から第６実施例に示した／Ｉ６６〜況１９の
テープも従来のＣｏ−Ｎｉテープ應５と同等もしくは同
等以上の再生出力が得られることが認められた。また、
第６笑施例以外の２種類、３ａ類、あるいは４種類以上
の添加元素の組み合わせも、耐蝕性、特性安定性の向上
にイｊ“効であることが認められた。It was confirmed that the tapes of /I66 to Example 19 shown in Examples 2 to 6 also provided reproduction outputs equal to or greater than those of the conventional Co-Ni tape 5. Also,
It has been found that combinations of two types of additive elements, Group 3a elements, or four or more types of additive elements other than those in Example 6 are also effective in improving corrosion resistance and property stability.
以上のように、本発明は、従来のＣｏ −Ｎｉテープと
比較して、高価なＣｏの含有量を減らしながら、耐蝕性
、磁性層特性の安定性、再生出力のいずれにおいても同
等以上の性能を持つ磁気記録媒体を提供し得るものであ
る。As described above, the present invention has the same or higher performance in terms of corrosion resistance, stability of magnetic layer characteristics, and reproduction output while reducing the content of expensive Co compared to the conventional Co-Ni tape. It is possible to provide a magnetic recording medium having the following characteristics.
第１図は、本シロ施例に用いた蒸着テープ作製装置の説
明図である。第２図および第４図〜第８図は、磁性層の
組成と耐蝕性試験、特性安定比較を表わしたグシフであ
る。
１・真空槽、２ フィルム巻出し軸、３・フィルム巻取
り軸、４・・９間フリーローラ、５ ・冷却キャ／、６
・・・蒸着材料、７・・蒸着材４」収納容器、８ 肛子
ビーム発生源、９・・ポリエテレ／テレフタレートフィ
ルム、１０・・・排気装置、１１・・・防着板、２０・
・本発明の実施例Ａ６４テープの再生出力曲線、２１
Ｃｏ −Ｎｉの再生出力曲線。
勇 ２図
第５図
■
２
夙引味 （外−）
＄４１１
茅 ７１］
￥ ３ ＬＴＩ
手続補正書（方式）
１ 事件の表示
昭和５８年 特許願 第 １４４１１５ 号２ 発明の
名称
磁気記録媒体
３ 補正をする者
事件との関係 特許出願入
居 所 謂１４６東京都人ＬＯ区下丸子３−３０−２δ
、補正命令の日付
昭和５８年１１月２９日（発送日付）
６、補正の対象
明＃ｌＩ書
７、補正の内容
明ａｌ書の浄書（内容に変更なし）。FIG. 1 is an explanatory diagram of a vapor deposition tape manufacturing apparatus used in this example. FIG. 2 and FIGS. 4 to 8 are diagrams showing the composition of the magnetic layer, corrosion resistance test, and characteristic stability comparison. 1. Vacuum chamber, 2. Film unwinding shaft, 3. Film winding shaft, 4..9 free roller, 5. Cooling cap/, 6
. . . Vapor deposition material, 7. Vapor deposition material 4 storage container, 8 Anal beam source, 9. Polyester/terephthalate film, 10. Exhaust device, 11. Deposition prevention plate, 20.
・Reproduction output curve of Example A64 tape of the present invention, 21
Reproduction output curve of Co-Ni. Isamu 2 Figure 5 ■ 2 Shohikimi (outside) $411 Kaya 71] ¥3 LTI Procedural amendment (method) 1 Indication of the case 1982 Patent Application No. 144115 2 Name of the invention Magnetic recording medium 3 Amendment Relationship with the case of the person who filed the patent application: 3-30-2 δ Shimomaruko, LO Ward, Tokyo 146
, Date of amendment order November 29, 1982 (shipping date) 6. Target of amendment: Illustrated document #lI 7. Contents of amendment: Engraving of AAL (no change in content).
Claims (2)
性層を有する磁気記録媒体において、磁性層がＦｅを主
成分とし、Ｃｏ、ＮｉおよびＣｒを含み、さらにＶ 、
Ｎｂ、Ｔａ、Ｍｏ 、およびＷより選はオしる少なく
とも一種類以上の元素を含むことを特徴とする磁気記録
媒体。(1) In a magnetic recording medium having a magnetic layer formed by a thin film deposition method on a non-magnetic substrate, the magnetic layer mainly contains Fe, contains Co, Ni and Cr, and further contains V,
A magnetic recording medium comprising at least one element selected from Nb, Ta, Mo, and W.
ａＣｒｂＸｃ （Ｘ は Ｖ。 Ｎｂ 、 ’ｌ’ａ 、 Ｍ、ｏ 、およびＷよシ選ば
れる少なくとも一種類以上の元素）で重量組成比が、０
＜Ｘ＜０．５、（１，０５＜： ａ り０．２．０．０
１＜；：ｂ＜：０．１５、および０．００５＜：ｃ＜：
Ｑ、ｌ ５であるｌ持許請求の範囲第１項記載の磁気記
録媒体。(2) The composition of the magnetic layer is (''' 1-xCOx) 1- (a+b-+C)Ni
aCrbXc (X is at least one element selected from V.Nb, 'l'a, M, o, and W) with a weight composition ratio of 0
<X<0.5, (1,05<: a ri0.2.0.0
1<;:b<:0.15, and 0.005<:c<:
The magnetic recording medium according to claim 1, wherein the magnetic recording medium has a magnetic recording medium of Q, l5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58144115A JPS6035328A (en) | 1983-08-06 | 1983-08-06 | Magnetic recording medium |
| US06/637,279 US4835069A (en) | 1983-08-06 | 1984-08-03 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58144115A JPS6035328A (en) | 1983-08-06 | 1983-08-06 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6035328A true JPS6035328A (en) | 1985-02-23 |
| JPH053656B2 JPH053656B2 (en) | 1993-01-18 |
Family
ID=15354533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58144115A Granted JPS6035328A (en) | 1983-08-06 | 1983-08-06 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6035328A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797330A (en) * | 1986-03-18 | 1989-01-10 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Perpendicular magnetic storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS524805A (en) * | 1975-07-01 | 1977-01-14 | Fuji Photo Film Co Ltd | Production method of magnetic recording media |
| JPS5629A (en) * | 1979-06-15 | 1981-01-06 | Ulvac Corp | Vacuum-evaporated film type magnetic recording substance and its manufacture |
| JPS567231A (en) * | 1979-06-27 | 1981-01-24 | Ulvac Corp | Vapor deposition film type magnetic recording material and its production |
-
1983
- 1983-08-06 JP JP58144115A patent/JPS6035328A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS524805A (en) * | 1975-07-01 | 1977-01-14 | Fuji Photo Film Co Ltd | Production method of magnetic recording media |
| JPS5629A (en) * | 1979-06-15 | 1981-01-06 | Ulvac Corp | Vacuum-evaporated film type magnetic recording substance and its manufacture |
| JPS567231A (en) * | 1979-06-27 | 1981-01-24 | Ulvac Corp | Vapor deposition film type magnetic recording material and its production |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797330A (en) * | 1986-03-18 | 1989-01-10 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Perpendicular magnetic storage medium |
| US5034286A (en) * | 1986-03-18 | 1991-07-23 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Perpendicular magnetic storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH053656B2 (en) | 1993-01-18 |
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