Spinel-containing electrode and process for its production
    4.
    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

    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。

    Manufacture of magnetic recording media having a wear-resistant surface
    10.
    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

    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。