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23 条记录 (耗时 0.02 秒)

    Manufacture of magnetic recording media having a wear-resistant surface
    1.
    发明授权
    Manufacture of magnetic recording media having a wear-resistant surface 失效
    具有耐磨表面的磁记录介质的制造

    公开(公告)号：US4272563A

    公开(公告)日：1981-06-09

    申请号：US765159

    申请日：1977-02-03

    申请人： Werner Steck ,  Werner Loeser ,  Manfred Steuerwald ,  Gerd Wunsch ,  Paul Deigner

    发明人： Werner Steck ,  Werner Loeser ,  Manfred Steuerwald ,  Gerd Wunsch ,  Paul Deigner

    IPC分类号： G11B5/64 ,  G11B5/72 ,  G11B5/84 ,  G11B5/858 ,  B05D5/12

    CPC分类号： G11B5/72 ,  G11B5/84

    摘要： A process for the manufacture of wear-resistant magnetic recording media comprising a dimensionally stable base, a thin ferromagnetic metal layer, containing cobalt and/or nickel, firmly bonded thereto and a thin protective layer applied thereon. The protective layer is produced by treating the recording medium in a liquid basic medium, containing gaseous oxygen, for from 1 to 60 minutes at from 5.degree. to 70.degree. C., washing and drying the treated recording medium and then heating it in air at from 170.degree. to 300.degree. C. This method offers a particularly simple way of providing the ferromagnetic layer of the recording medium with a thin but uniform, mechanically stable and wear-resistant protective layer.

    摘要翻译： 一种用于制造耐磨磁记录介质的方法，其包括尺寸稳定的基底，与包含钴和/或镍的薄的铁磁金属层，其牢固地结合到其上并施加有薄的保护层。 保护层通过在含有气态氧的液体碱性介质中在5至70℃下处理记录介质1至60分钟来制备，洗涤和干燥经处理的记录介质，然后在空气中加热 从170℃到300℃。该方法提供了一种特别简单的方式来提供记录介质的铁磁层，其具有薄而均匀的机械稳定且耐磨的保护层。

    Magnetic materials with exchange anisotropy and process for their manufacture
    5.
    发明授权
    Magnetic materials with exchange anisotropy and process for their manufacture 失效
    具有交换各向异性的磁性材料及其制造方法

    公开(公告)号：US3959032A

    公开(公告)日：1976-05-25

    申请号：US535577

    申请日：1974-12-23

    申请人： Eberhard Koester ,  Gerd Wunsch ,  Paul Deigner ,  Dieter Graw ,  Karl Uhl ,  Werner Steck

    发明人： Eberhard Koester ,  Gerd Wunsch ,  Paul Deigner ,  Dieter Graw ,  Karl Uhl ,  Werner Steck

    IPC分类号： G11B5/62 ,  C09D5/23 ,  C09D7/12 ,  G11B5/706 ,  H01F1/06 ,  H01F1/09 ,  H01F1/33

    CPC分类号： H01F1/09 ,  G11B5/70621 ,  H01F1/0009

    摘要： Magnetic materials which essentially consist of a phase A with a ferromagnetic spin system and a phase B with an anti-ferromagnetic spin system, phases A and B interacting by exchange coupling, and the manufacture of such materials. The materials consist essentially of two-phase magnetic single-domain particles, with the alloy [Co.sub.x Ni.sub.1.sub.-x ] as the ferromagnetic phase A and its oxidized form [(CoO).sub.x (NiO).sub.1.sub.-x ] as the anti-ferromagnetic phase B, with values of x of 0.04 to 0.96. They are manufactured by surface oxidation of a pigment layer, which at least covers the surface but may extend deeper, having the composition of phase A, to form an oxide layer, at least 40 A thick, of the phase B, followed by heating in an inert gas atmosphere, or by reduction of a corresponding layer of phase B to a layer of phase A. Magnetic single-domain particles of this composition have a Neel temperature which varies with X. As a result, materials are obtained which have an asymmetrical hysteresis loop, attributable to exchange anisotropy, at temperatures which can be varied within wide limits in accordance with the intended use of the material.

    摘要翻译： 磁性材料基本上由具有铁磁自旋系统的相A和具有反铁磁旋转系统的相B组成，A相和B相通过交换耦合相互作用，并且制造这种材料。 这些材料基本上由两相磁性单畴粒子组成，合金[CoxNi1-x]作为铁磁相A，其氧化形式[（CoO）x（NiO）1-x]作为反铁磁相B ，值x为0.04至0.96。 它们通过颜料层的表面氧化制造，颜料层至少覆盖表面但可以延伸得更深，具有相A的组成，以形成相B的至少40μA的氧化物层，随后加热 惰性气体气氛，或通过将相B的相应层减少到相A层。该组合物的磁性单畴颗粒具有随X变化的Neel温度。结果，获得具有不对称性的材料 可归因于交换各向异性的磁滞回线，其温度可以根据材料的预期用途在宽范围内变化。

    Anode for electrochemical processes
    8.
    发明授权
    Anode for electrochemical processes 失效
    阳极电化学过程

    公开(公告)号：US4060476A

    公开(公告)日：1977-11-29

    申请号：US640575

    申请日：1975-12-15

    申请人： Wolfram Treptow ,  Gerd Wunsch

    发明人： Wolfram Treptow ,  Gerd Wunsch

    IPC分类号： C25B11/16 ,  C25B11/04

    CPC分类号： C25B11/16

    摘要： An anode for electrochemical processes consists of an electrode base plate of a metal which can be passivated electrochemically, a protective layer deposited thereon, and a further layer, consisting of manganese dioxide. The protective layer consists of the nitride of the metal of the electrode base plate.

    摘要翻译： 用于电化学过程的阳极由可以电化学钝化的金属的电极基板，沉积在其上的保护层和由二氧化锰组成的另一层组成。 保护层由电极基板的金属的氮化物构成。

    Spinel-containing electrode and process for its production
    9.
    发明授权
    Spinel-containing electrode and process for its production 失效
    含尖晶石的电极及其生产工艺

    公开(公告)号：US4411761A

    公开(公告)日：1983-10-25

    申请号：US276985

    申请日：1981-06-24

    申请人： Hans Roos ,  Hugo Boehn ,  Knut Bittler ,  Volker Kiener ,  Gerd Wunsch

    发明人： Hans Roos ,  Hugo Boehn ,  Knut Bittler ,  Volker Kiener ,  Gerd Wunsch

    IPC分类号： C25B11/06 ,  C23C4/06 ,  C25B11/04 ,  C25C7/02 ,  C25B1/26

    CPC分类号： C25B11/0478

    摘要： In an electrode suitable for electrolysis of aqueous sodium chloride or potassium chloride solutions, at least the outer layer contains spinels, specifically a mixture of the individual spinels of iron and of cobalt, the weight ratio of iron spinels: cobalt spinels being from 30:70 to 90:10.The electrodes are produced by applying a powder mixture of iron spinel and cobalt spinel to a substrate by a plasma spraying process wherein argon is used as the plasma gas and the spraying energy is from 6 to 30 kW.

    摘要翻译： 在适用于电解氯化钠或氯化钾溶液的电极中，至少外层含有尖晶石，特别是铁和钴的单个尖晶石的混合物，铁尖晶石的重量比：钴尖晶​​石为30:70 到90:10。 通过使用氩作为等离子体气体并且喷射能量为6至30kW的等离子体喷涂方法将尖晶石铁和尖晶石铁的粉末混合物施加到基板上来制造电极。