JPS6218971B2 - - Google Patents
Info
- Publication number
- JPS6218971B2 JPS6218971B2 JP57070033A JP7003382A JPS6218971B2 JP S6218971 B2 JPS6218971 B2 JP S6218971B2 JP 57070033 A JP57070033 A JP 57070033A JP 7003382 A JP7003382 A JP 7003382A JP S6218971 B2 JPS6218971 B2 JP S6218971B2
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- thin film
- magnetic recording
- ferromagnetic
- metal
- 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
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 230000005291 magnetic effect Effects 0.000 claims description 13
- 239000010409 thin film Substances 0.000 claims description 12
- 230000005294 ferromagnetic effect Effects 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 description 22
- 230000007797 corrosion Effects 0.000 description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 239000010941 cobalt Substances 0.000 description 5
- 229910017052 cobalt Inorganic materials 0.000 description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910002441 CoNi Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000003302 ferromagnetic material Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- SBYRHTZJKKWEMP-UHFFFAOYSA-N 2,3,4,6-tetrafluoroaniline Chemical compound NC1=C(F)C=C(F)C(F)=C1F SBYRHTZJKKWEMP-UHFFFAOYSA-N 0.000 description 2
- FVFYRXJKYAVFSB-UHFFFAOYSA-N 2,3,5,6-tetrafluorobenzene-1,4-diamine Chemical compound NC1=C(F)C(F)=C(N)C(F)=C1F FVFYRXJKYAVFSB-UHFFFAOYSA-N 0.000 description 2
- FXGQUGCFZKMIJW-UHFFFAOYSA-N 2,4,5,6-tetrafluorobenzene-1,3-diamine Chemical compound NC1=C(F)C(N)=C(F)C(F)=C1F FXGQUGCFZKMIJW-UHFFFAOYSA-N 0.000 description 2
- BJSVKBGQDHUBHZ-UHFFFAOYSA-N 2,4,6-trifluoroaniline Chemical compound NC1=C(F)C=C(F)C=C1F BJSVKBGQDHUBHZ-UHFFFAOYSA-N 0.000 description 2
- CEPCPXLLFXPZGW-UHFFFAOYSA-N 2,4-difluoroaniline Chemical compound NC1=CC=C(F)C=C1F CEPCPXLLFXPZGW-UHFFFAOYSA-N 0.000 description 2
- YNOOQIUSYGWMSS-UHFFFAOYSA-N 2,5-difluoroaniline Chemical compound NC1=CC(F)=CC=C1F YNOOQIUSYGWMSS-UHFFFAOYSA-N 0.000 description 2
- VBLXCTYLWZJBKA-UHFFFAOYSA-N 2-(trifluoromethyl)aniline Chemical compound NC1=CC=CC=C1C(F)(F)F VBLXCTYLWZJBKA-UHFFFAOYSA-N 0.000 description 2
- AXNUZKSSQHTNPZ-UHFFFAOYSA-N 3,4-difluoroaniline Chemical compound NC1=CC=C(F)C(F)=C1 AXNUZKSSQHTNPZ-UHFFFAOYSA-N 0.000 description 2
- CDIDGWDGQGVCIB-UHFFFAOYSA-N 3,5-bis(trifluoromethyl)aniline Chemical compound NC1=CC(C(F)(F)F)=CC(C(F)(F)F)=C1 CDIDGWDGQGVCIB-UHFFFAOYSA-N 0.000 description 2
- ODGIMMLDVSWADK-UHFFFAOYSA-N 4-trifluoromethylaniline Chemical compound NC1=CC=C(C(F)(F)F)C=C1 ODGIMMLDVSWADK-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KQOIBXZRCYFZSO-UHFFFAOYSA-N 3,5-difluoroaniline Chemical compound NC1=CC(F)=CC(F)=C1 KQOIBXZRCYFZSO-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000001771 vacuum deposition 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
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/722—Protective coatings, e.g. anti-static or antifriction containing an anticorrosive material
Landscapes
- Lubricants (AREA)
- Paints Or Removers (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Magnetic Record Carriers (AREA)
Description
【発明の詳細な説明】
本発明は高湿度中あるいは比較的低濃度の腐食
性ガス中での耐食性が改善された強磁性金属薄膜
型磁気記録媒体に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ferromagnetic metal thin film magnetic recording medium that has improved corrosion resistance in high humidity or relatively low concentration corrosive gas.
鉄、コバルト、ニツケルあるいはそれらを主成
分とする合金の薄膜を真空磁着、スパツタリン
グ、イオンプレーテイング、鍍金などの方法で基
板フイルム上に形成させた金属薄膜型磁気記録テ
ープあるいはそれらの金属粉末を樹脂バインダー
で結合させた金属粉末型磁気記録テープは、従来
の酸化鉄を主体とする強磁性粉末を樹脂バインダ
ーで結合させた通常の塗布型テープとは異なり、
高湿度中あるいは腐食性ガス中で腐食を生じ易
い。 A metal thin film type magnetic recording tape, in which a thin film of iron, cobalt, nickel, or an alloy containing these as main components is formed on a substrate film by methods such as vacuum magnetization, sputtering, ion plating, or plating, or metal powder thereof. Metal powder-type magnetic recording tape bonded with a resin binder is different from conventional coated tape, which is made by bonding ferromagnetic powder mainly composed of iron oxide with a resin binder.
Prone to corrosion in high humidity or corrosive gases.
そのため金属薄膜型または金属粉末型の磁気記
録用テープの表面をグロー放電による酸化、ある
いはきわめて薄い樹脂コーテイングなどの防錆処
理を施してその安定化を行つているが、実用上十
分に満足する状態のものが得られ難い現状にあ
る。とくに我国の多くの地方には梅雨シーズンが
あり、その期間はとくに高温多湿で金属の腐食の
面からみるときわめて悪い条件であり、実際にこ
の時期に各種の金属部品の腐食クレームの発生が
多い傾向がある。 For this reason, the surface of metal thin film or metal powder magnetic recording tapes is stabilized by oxidation using glow discharge, or by applying anti-corrosion treatments such as extremely thin resin coatings, but the conditions are sufficiently satisfactory for practical use. Currently, it is difficult to obtain such things. In particular, many regions of Japan have a rainy season, which is particularly hot and humid, creating extremely bad conditions from the perspective of metal corrosion, and in fact, many complaints about corrosion of various metal parts occur during this period. Tend.
また我国は周囲を海で囲まれており、海岸近く
の住人は常に塩分を含む強い腐食性雰囲気に悩ま
されている。さらに我国は火山国であり、多くの
地区で温泉や火山性噴出ガスが発生しているが、
このような地区では多くの場合、硫化水素
（H2S）、二酸化いおう（SO2）、アンモニア
（NH3）などの腐食性ガスを発生させている。また
多くの地域に工業地帯があり、それらの中には各
種の腐食性ガスや粉じんを発生させている場合が
ある。 Furthermore, our country is surrounded by the sea, and residents near the coast are constantly exposed to a highly corrosive atmosphere containing salt. Furthermore, Japan is a volcanic country, and many areas have hot springs and volcanic gases.
Such areas often generate corrosive gases such as hydrogen sulfide (H 2 S), sulfur dioxide (SO 2 ), and ammonia (NH 3 ). Additionally, many regions have industrial zones, some of which generate various corrosive gases and dust.
周知のように鉄は一般的な環境下でも腐蝕する
し、他方ニツケルやコバルトは鉄と比較すると耐
食性の面ですぐれてはいるが、前述したような環
境下では腐食する。とくに金属板とは異なり、真
空蒸着、スパツタリング、イオンプレーテイン
グ、鍍金などの方法でつくられた金属薄膜は、一
般に金属板に比較して活性が強く腐食されやすい
傾向がある。 As is well known, iron corrodes even under normal environments, while nickel and cobalt have superior corrosion resistance compared to iron, but corrode under the environments described above. In particular, unlike metal plates, metal thin films made by methods such as vacuum evaporation, sputtering, ion plating, and plating are generally more active and more prone to corrosion than metal plates.
磁気記録されたカセツトテープは、それが音声
記録、映像記録にかかわらず長期間腐食変質する
ことなく保存できることが必要である。例えば人
間の幼時期の映像記録などについては長期間の場
合に10〜20年の耐食性が要求されるであろう。 Magnetically recorded cassette tapes, whether audio or video recording, must be able to be stored for long periods of time without corrosion or deterioration. For example, for long-term recording of human childhood images, corrosion resistance for 10 to 20 years would be required.
鉄、ニツケル、コバルトまたはそれらの合金を
真空蒸着法によつてつけただけの蒸着テープは、
各種の雰囲気中に放置すると、比較的短期間で腐
食する場合がある。例えば50〜60℃、相対湿度90
％の雰囲気中では数週間で腐食が生じることがあ
り、また梅雨時に屋内に放置したものについても
数ケ月で白色はん点状の腐食生成物が認められる
ことがある。このような腐食による変質を防止す
るために、表面層のグロー放電による酸化やコー
テイング等を行つているが、それでもきわめて長
期間の耐食性を完全に保障することは困難であ
る。 Vacuum-deposited tapes that are made by applying iron, nickel, cobalt, or their alloys using the vacuum deposition method are
If left in various atmospheres, it may corrode in a relatively short period of time. For example 50-60℃, relative humidity 90
Corrosion may occur in a few weeks in an atmosphere of 100%, and corrosion products in the form of white spots may be observed in a few months even if the product is left indoors during the rainy season. In order to prevent such deterioration due to corrosion, the surface layer is oxidized by glow discharge or coated, but it is still difficult to completely guarantee corrosion resistance for an extremely long period of time.
本発明は、コバルト金属又はコバルト合金等の
強磁性金属膜より成る磁気記録媒体の磁性層の表
面に、フエニル基にフツ素とアミンとを結合させ
た有機化合物を付着せしめたことを特徴とする磁
気記録媒体に関するものである。 The present invention is characterized in that an organic compound in which fluorine and amine are bonded to a phenyl group is attached to the surface of a magnetic layer of a magnetic recording medium made of a ferromagnetic metal film such as cobalt metal or cobalt alloy. It relates to magnetic recording media.
この系列の化合物としては例えば下記のものが
ある。 Examples of this series of compounds include the following.
(1) ２−アミノベンゾトリフルオライド
(2) ４−アミノベンゾトリフルオライド
(3) ４−アミノ−1.2.3.5−テトラフルオロベンゼ
ン
(4) ２−アミノ−1.3.5−トリフルオロベンゼン
(5) 3.4.6−トリフルオロフエニレン−1.2―ジア
ミン
(6) 3.5−ビス（トリフルオロメチル）アニリン
(7) 1.3−ジアミノ−2.4.5.6−テトラフルオロベ
ンゼン
(8) 1.4−ジアミノ−2.3.5.6−テトラフルオロベ
ンゼン
(9) 1.2−ジアミノ −3.5−ジフルオロベンゼン
(10) 2.4−ジフルオロアニリン
(11) 2.5−ジフルオロアニリン
(12) 2.6−ジフルオロアニリン
(13) 3.4−ジフルオロアニリン
(14) 3.5−ジフルオロアニリン
これらの化合物は強磁性薄膜の少くとも表面、
可能であれば内面、あるいは強磁性薄膜が形成さ
れている下地との界面に接する状態で存在せしめ
ることにより、その効果が発揮される。(1) 2-aminobenzotrifluoride (2) 4-aminobenzotrifluoride (3) 4-amino-1.2.3.5-tetrafluorobenzene (4) 2-amino-1.3.5-trifluorobenzene (5) 3.4 .6-Trifluorophenylene-1,2-diamine (6) 3,5-bis(trifluoromethyl)aniline (7) 1,3-diamino-2.4.5.6-tetrafluorobenzene (8) 1,4-diamino-2.3.5.6-tetrafluoro Benzene (9) 1.2-Diamino -3.5-difluorobenzene (10) 2.4-difluoroaniline (11) 2.5-difluoroaniline (12) 2.6-difluoroaniline (13) 3.4-difluoroaniline (14) 3.5-difluoroaniline These compounds is at least the surface of the ferromagnetic thin film,
If possible, the effect can be exerted by making it exist in contact with the inner surface or the interface with the base on which the ferromagnetic thin film is formed.
その適量は磁気記録媒体１m2当り0.5〜500mg程
度である。具体的な存在のさせ方としては、前記
の化合物をそれ自体あるいは高分子化合物等の被
膜形成能を有するものに混合せしめた状態で必要
ならばフロン系、芳香族系、炭化水素系等の溶剤
に溶解して強磁性体表面に塗布する方法、あるい
は蒸気を強磁性体表面にあてる方法、さらに磁気
記録媒体がテープ状である場合には、その裏面に
存在せしめておきテープが巻込まれたとき強磁性
薄膜表面に転写せしめるようにする方法、等公知
の手段を用いることができる。 The appropriate amount is about 0.5 to 500 mg per m 2 of magnetic recording medium. Specifically, the above-mentioned compound may be present by itself or in a mixture with a film-forming substance such as a polymer compound, and if necessary, a fluorocarbon-based, aromatic-based, or hydrocarbon-based solvent may be used. A method of dissolving it in water and applying it to the surface of a ferromagnetic material, or a method of applying vapor to the surface of a ferromagnetic material, or a method of applying vapor to the surface of a ferromagnetic material.Furthermore, if the magnetic recording medium is in the form of a tape, it is left on the back side and when the tape is wound. Known means such as a method of transferring the image onto the surface of a ferromagnetic thin film can be used.
次に具体的に本発明の実施例について説明す
る。 Next, embodiments of the present invention will be specifically described.
厚さ10μｍのポリエステルフイルムを円筒キヤ
ンの周面上に沿わせて５×10-5Torrの真空度で
酸素ガスを0.3／mmの速度で導入して電子ビー
ム加熱により溶融したCoNi合金（Ni含有量20wt
％）を連続斜め蒸着（低入射角度成分30゜以下カ
ツト）し、厚さ1000Åの酸素含有CoNi強磁性薄
膜をフイルム上に形成せしめたもの（試料Ａ）
と、上記と類似の条件で真空度５×10-6Torr、
酸素ガス導入なしで酸素を含有せしめないCoNi
強磁性薄膜を形成せしめたもの（試料Ｂ）を用意
した。膜中の酸素量をオージエ電子分光分析法を
主体に測定した結果、試料Ａの膜中の平均酸素量
はCoとNiに対する原子数比（Ｏ／Ｃｏ＋Ｎｉ×100）で1
0
％であり、試料Ｂのそれは１％以下であつた。こ
れらの試料表面に前述のようなフエニル基にフツ
素とアミンとを同時に分子中に含む化合物をそれ
ぞれ単独にフロン系溶媒に溶解せしめて塗布乾燥
したのちに50℃、相対湿度90％の雰囲気中に放置
し、その間、定期的に取出し、光学顕微鏡下で観
察することにより腐食の発生状態を調べた。なお
塗布量は10〜100mg／m2となるように調節した。 A CoNi alloy (containing Ni) was melted by electron beam heating by placing a 10 μm thick polyester film along the circumferential surface of a cylindrical can and introducing oxygen gas at a rate of 0.3/mm in a vacuum of 5 × 10 -5 Torr. Amount 20wt
%) was continuously obliquely deposited (cutting the low incident angle component below 30°) to form a 1000 Å thick oxygen-containing CoNi ferromagnetic thin film on the film (Sample A).
And under similar conditions as above, the degree of vacuum is 5×10 -6 Torr,
CoNi that does not contain oxygen without introducing oxygen gas
A sample (sample B) on which a ferromagnetic thin film was formed was prepared. As a result of measuring the amount of oxygen in the film mainly using Auger electron spectroscopy, the average amount of oxygen in the film of sample A was 1 in the atomic ratio of Co to Ni (O/Co + Ni x 100).
0%, and that of sample B was less than 1%. The above-mentioned compounds containing phenyl groups, fluorine, and amine simultaneously in the molecule were individually dissolved in a fluorocarbon-based solvent and coated on the surfaces of these samples. After drying, they were coated in an atmosphere at 50°C and 90% relative humidity. During this period, they were taken out periodically and observed under an optical microscope to examine the state of corrosion. The coating amount was adjusted to 10 to 100 mg/m 2 .
その結果、試料Ａについては、いずれの化合物
に関しても５週間経過しても腐食の発生は殆んど
認められなかつた。なお未処理品については２週
間以内に比較的多くの腐食の発生がみられた。 As a result, for Sample A, almost no corrosion was observed for any of the compounds even after 5 weeks. For untreated products, a relatively large amount of corrosion was observed within two weeks.
試料Ｂについては、未処理品が何れも１週間以
内に大きな腐食が発生するのに対して処理を施し
たものでは何れも３週間までは腐食の発生はなか
つたが、４〜５週間では前述の化合物(10)〜（14）
を用い処理したものについて比較的多くの点錆の
発生が認められた。 Regarding sample B, all untreated products showed significant corrosion within one week, whereas none of the treated products showed any corrosion for up to 3 weeks, but after 4 to 5 weeks, the above-mentioned corrosion occurred. Compounds (10) to (14)
A relatively large number of spots of rust were observed in the specimens treated with the same method.
しかし他のものについては殆んど点錆の発生は
認められなかつた。 However, almost no spot rust was observed on the other items.
本発明に係る方法で処理した磁性層の耐食性が
向上する理由は、前述の化合物で処理した磁性層
の撥水性の著しい増加と、アミノ基とコバルト及
びニツケルとの化学的な結合とに起因するものと
推論できる。 The reason why the corrosion resistance of the magnetic layer treated by the method according to the present invention is improved is due to the remarkable increase in water repellency of the magnetic layer treated with the above-mentioned compound and the chemical bonding between the amino groups and cobalt and nickel. It can be inferred as something.
なお硫化水素、二酸化イオウ、アンモニア、
NOx等の低濃度領域での耐食性も本発明に係る方
法で若干の改善が可能である。 Furthermore, hydrogen sulfide, sulfur dioxide, ammonia,
Corrosion resistance in low concentration regions such as NO x can also be slightly improved by the method according to the present invention.
以上に説明したように、本発明によれば高湿度
中での磁気記録媒体の耐食性を容易にかつ大幅に
改善することができる。 As explained above, according to the present invention, the corrosion resistance of a magnetic recording medium in high humidity can be easily and significantly improved.
Claims (1)
形成し、上記強磁性金属薄膜に、フエニル基にフ
ツ素とアミンとを結合させた有機化合物を付着せ
しめたことを特徴とする磁気記録媒体。1. A magnetic recording medium characterized in that a ferromagnetic metal thin film containing oxygen is formed on a nonmagnetic substrate, and an organic compound in which fluorine and amine are bonded to a phenyl group is attached to the ferromagnetic metal thin film. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57070033A JPS58188329A (en) | 1982-04-26 | 1982-04-26 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57070033A JPS58188329A (en) | 1982-04-26 | 1982-04-26 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58188329A JPS58188329A (en) | 1983-11-02 |
| JPS6218971B2 true JPS6218971B2 (en) | 1987-04-25 |
Family
ID=13419872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57070033A Granted JPS58188329A (en) | 1982-04-26 | 1982-04-26 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58188329A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0619802B2 (en) * | 1984-05-31 | 1994-03-16 | ティーディーケイ株式会社 | Magnetic recording method |
| JPH0612566B2 (en) * | 1984-08-01 | 1994-02-16 | ティーディーケイ株式会社 | Magnetic recording method |
| JPH0668836B2 (en) * | 1986-04-18 | 1994-08-31 | 松下電器産業株式会社 | Magnetic recording medium |
| CN102260424A (en) * | 2011-07-21 | 2011-11-30 | 北京科技大学 | Treating fluid for improving corrosion resistance of magnesium alloy surface, preparation method thereof and process thereof |
-
1982
- 1982-04-26 JP JP57070033A patent/JPS58188329A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58188329A (en) | 1983-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6218971B2 (en) | ||
| JPS58194137A (en) | Magnetic recording medium | |
| JPS6038719A (en) | Magnetic recording medium | |
| JPS5984407A (en) | Magnetic recording medium | |
| JPH02172015A (en) | Magnetic recording medium | |
| JP2524522B2 (en) | Magnetic recording media | |
| JPH0312817A (en) | Magnetic recording medium | |
| JPS58146028A (en) | Magnetic recording medium | |
| JPS589218A (en) | Manufacture of magnetic recording medium | |
| JPH01208722A (en) | Magnetic recording medium | |
| JPS58102373A (en) | Cassette case for magnetic recording | |
| JPS58133630A (en) | Magnetic recording medium | |
| JPS6331021A (en) | Magnetic memory body | |
| JPH05274665A (en) | Production of magnetic recording medium | |
| JPH0470683B2 (en) | ||
| JPH0112834B2 (en) | ||
| JPH0234536A (en) | Amorphous material | |
| JPS59186119A (en) | Magnetic recording medium | |
| JPS598123A (en) | Magnetic tape | |
| JPH01211218A (en) | Magnetic recording tape | |
| JPS59167828A (en) | Magnetic recording medium | |
| JPH0196821A (en) | Magnetic recording medium and production thereof | |
| JPS6089815A (en) | Magnetic recording medium | |
| US20050244680A1 (en) | Environmentally stable metal-evaporated recording media | |
| JPS58194134A (en) | Magnetic recording medium |