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    Ceramic Sinter, Magnetic Head Substrate Using the Same, Magnetic Head and Recording Medium Drive Unit
    1.
    发明申请
    Ceramic Sinter, Magnetic Head Substrate Using the Same, Magnetic Head and Recording Medium Drive Unit 有权
    陶瓷烧结机，使用磁头的磁头基板，磁头和记录介质驱动单元

    公开(公告)号：US20100061013A1

    公开(公告)日：2010-03-11

    申请号：US12513457

    申请日：2007-11-07

    申请人： Shuji Nakazawa ,  Yucong Wang ,  Masahide Akiyama ,  Takuya Gentsu ,  Toshiyuki Sue

    发明人： Shuji Nakazawa ,  Yucong Wang ,  Masahide Akiyama ,  Takuya Gentsu ,  Toshiyuki Sue

    IPC分类号： G11B5/127 ,  C04B35/56 ,  G11B5/33

    CPC分类号： G11B5/58 ,  B82Y30/00 ,  C04B35/117 ,  C04B35/5611 ,  C04B35/6455 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3843 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/761 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/96 ,  C04B2235/9607 ,  C04B2235/963 ,  G11B5/40 ,  G11B5/6082 ,  Y10T428/1157

    摘要： Greater emphasis has been placed on smoothness of the floating surface for the applications with floating height of 10 nm or less. To obtain a smooth floating surface, it must be polished with diamond abrasive having a mean particle size of 0.1 μm or less, and conventional ceramic sintered body has poor machinability and it is impossible to use the magnetic heads made of this ceramic sintered body at a floating height of 10 nm or less.The ceramic sintered body according to the present invention contains Al2O3 crystal grains, internal TiC crystal grains existing in the Al2O3 crystal grains and external TiC crystal grains other than the internal TiC crystal grains. The Al2O3 crystal grains and the external TiC crystal grains retain stress caused by the difference in thermal expansion coefficient remaining after sintering, so that the Al2O3 crystal grains and the external TiC crystal grains pull each other in the interface therebetween. As a result, when the ceramic sintered body is machined, micro-cracks generated in the interface can easily grow due to the residual stress in addition to the shearing force caused by the machining operation, so that machinability is improved.

    摘要翻译： 对于浮动高度为10nm或更小的应用，浮动表面的光滑度更加重视。 为了获得平滑的浮动表面，必须用平均粒度为0.1μm以下的金刚石磨料抛光，并且常规的陶瓷烧结体具有差的机械加工性，并且不可能使用由该陶瓷烧结体制成的磁头 浮动高度为10nm以下。 根据本发明的陶瓷烧结体包含存在于Al 2 O 3晶粒中的Al 2 O 3晶粒，存在于内部TiC晶粒和外部TiC晶粒以外的TiC晶粒。 Al 2 O 3晶粒和外部TiC晶粒保持由烧结后剩余的热膨胀系数的差异引起的应力，使得Al 2 O 3晶粒和外部TiC晶粒在其间的界面处相互牵引。 结果，当加工陶瓷烧结体时，除了由机械加工操作引起的剪切力之外，由于残余应力，在界面中产生的微裂纹容易生长，从而提高了切削性。

    Magnetic read/write head substrate
    3.
    发明授权
    Magnetic read/write head substrate 有权
    磁读写头基板

    公开(公告)号：US08318330B2

    公开(公告)日：2012-11-27

    申请号：US12642708

    申请日：2009-12-18

    申请人： Yucong Wang ,  Shuji Nakazawa ,  Yuuya Nakao ,  Takuya Gentsu ,  Nobuyuki Horiuchi

    发明人： Yucong Wang ,  Shuji Nakazawa ,  Yuuya Nakao ,  Takuya Gentsu ,  Nobuyuki Horiuchi

    IPC分类号： G11B5/127 ,  C04B35/117

    CPC分类号： G11B5/3106 ,  G11B5/102 ,  G11B5/3173 ,  G11B5/40 ,  G11B5/6011 ,  Y10T428/1157

    摘要： A substrate for a magnetic read/write head is disclosed. The substrate can reduce detachment of crystal grains when the substrate is machined. The substrate may be machined when the substrate is cut into strips or a flow path surface recess is formed to produce the magnetic read/write head. The reduced detachment of crystal grains makes the magnetic read/write head more resilient to chipping, which allows the magnetic read/write head to have a lower and more stable flying height that increases recording density.

    摘要翻译： 公开了一种用于磁读/写头的衬底。 当加工衬底时，衬底可以减少晶粒的分离。 当衬底被切割成条带时或者形成流路表面凹部以产生磁读/写头时，可以对衬底进行加工。 晶粒的分离减少使得磁读/写头对切屑更具弹性，这使得磁读/写头具有更低和更稳定的飞行高度，从而提高了记录密度。

    Anodized substrate layer with solid lubricant
    5.
    发明授权
    Anodized substrate layer with solid lubricant 有权
    具有固体润滑剂的阳极氧化基材层

    公开(公告)号：US08226809B2

    公开(公告)日：2012-07-24

    申请号：US11330507

    申请日：2006-01-12

    申请人： Yucong Wang ,  Fengyuan Yan ,  Jianmin Chen ,  Xiaobo Wang

    发明人： Yucong Wang ,  Fengyuan Yan ,  Jianmin Chen ,  Xiaobo Wang

    IPC分类号： C25D5/02

    CPC分类号： C25D9/08 ,  C25D11/02 ,  C25D11/20

    摘要： An anodized layer on a metallic substrate is treated in a manner to directly electrodeposit a metal sulfide solid lubricant material represented by MS2, where M is Mo, W or other suitable metal, in pores of the anodized layer without any subsequent thermal and/or chemical treatment being needed.

    摘要翻译： 处理金属基底上的阳极氧化层，以直接电化沉积由阳离子化层的孔中的由MS2表示的金属硫化物固体润滑剂材料（其中M是Mo，W或其它合适的金属），而没有任何后续的热和/或化学 需要治疗

    CAST ALUMINUM ALLOYS
    6.
    发明申请
    CAST ALUMINUM ALLOYS 有权
    CAST铝合金

    公开(公告)号：US20120000578A1

    公开(公告)日：2012-01-05

    申请号：US12827564

    申请日：2010-06-30

    申请人： Qigui Wang ,  Wenying Yang ,  Yucong Wang ,  Patricia E. Shaw

    发明人： Qigui Wang ,  Wenying Yang ,  Yucong Wang ,  Patricia E. Shaw

    IPC分类号： C22F1/043 ,  C22C21/02 ,  C22C21/08 ,  C22F1/047 ,  C22C21/18 ,  C22F1/053 ,  C22F1/057 ,  C22C21/10 ,  C22C21/14 ,  C22C21/16 ,  C22C21/04 ,  C22F1/05

    CPC分类号： C22F1/043 ,  C22C21/02 ,  C22C21/04 ,  C22C21/08 ,  C22C21/10 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18 ,  C22F1/047 ,  C22F1/05 ,  C22F1/053 ,  C22F1/057

    摘要： Aluminum alloys having improved properties are provided. The alloy includes about 0 to 2 wt % rare earth elements, about 0.5 to about 14 wt % silicon, about 0.25 to about 2.0 wt % copper, about 0.1 to about 3.0 wt % nickel, approximately 0.1 to 1.0% iron, about 0.1 to about 2.0 wt % zinc, about 0.1 to about 1.0 wt % magnesium, 0 to about 1.0 wt % silver, about 0.01 to about 0.2 wt % strontium, 0 to about 1.0 wt % scandium, 0 to about 1.0 wt % manganese, 0 to about 0.5 wt % calcium, 0 to about 0.5 wt % germanium, 0 to about 0.5 wt % tin, 0 to about 0.5 wt % cobalt, 0 to about 0.2 wt % titanium, 0 to about 0.1 wt % boron, 0 to about 0.2 wt % zirconium, 0 to 0.5% yttrium, 0 to about 0.3 wt % cadmium, 0 to about 0.3 wt % chromium, 0 to about 0.5 wt % indium, and the balance aluminum. Methods of making cast aluminum parts are also described.

    摘要翻译： 提供了具有改进性能的铝合金。 该合金包括约0至2重量％的稀土元素，约0.5至约14重量％的硅，约0.25至约2.0重量％的铜，约0.1至约3.0重量％的镍，约0.1至1.0重量％的铁，约0.1至 约2.0重量％的锌，约0.1至约1.0重量％的镁，0至约1.0重量％的银，约0.01至约0.2重量％的锶，0至约1.0重量％的钪，0至约1.0重量％的锰， 约0.5重量％的钙，0至约0.5重量％的锗，0至约0.5重量％的锡，0至约0.5重量％的钴，0至约0.2重量％的钛，0至约0.1重量％的硼，0至约0.2 重量％的锆，0至0.5％的钇，0至约0.3重量％的镉，0至约0.3重量％的铬，0至约0.5重量％的铟，余量为铝。 还描述了制造铸铝部件的方法。

    Non destructive adhesion testing
    10.
    发明授权
    Non destructive adhesion testing 失效
    非破坏性粘附试验

    公开(公告)号：US5454260A

    公开(公告)日：1995-10-03

    申请号：US170144

    申请日：1993-12-20

    申请人： Yucong Wang

    发明人： Yucong Wang

    IPC分类号： G01N3/56 ,  G01N19/04

    CPC分类号： G01N3/567 ,  G01N19/04

    摘要： Non destructive adhesion testing of coatings to substrates. A supersonic jet of water is impinged against the coating. The impingement intensity of the jet is set at a predetermined "failure intensity" determined by testing of a sample having a minimum acceptable level of adhesion. Parts passing through the supersonic jet unscratched pass the test. Parts whose coatings debond when impacted by the jet fail the test.

    摘要翻译： 涂层对基材的非破坏性粘合试验。 超音速喷射水撞击涂层。 射流的冲击强度设定在通过测试具有最小可接受的粘附水平的样品确定的预定的“破坏强度”。 穿过超音速喷气机的零件通过测试。 当受喷射器撞击时，其涂层脱落的部件未通过测试。