公开(公告)号：US5595946A

公开(公告)日：1997-01-21

申请号：US434832

申请日：1995-05-04

Applicant: Shinji Tsujimoto ,  Shin Mishima ,  Shigeru Kawahara ,  Shigeki Mohri ,  Toyoshige Sasaki ,  Michito Miyahara ,  Osamu Nakano

Inventor： Shinji Tsujimoto ,  Shin Mishima ,  Shigeru Kawahara ,  Shigeki Mohri ,  Toyoshige Sasaki ,  Michito Miyahara ,  Osamu Nakano

IPC: C04B35/10 ,  C04B35/117 ,  C04B35/56 ,  C04B35/58 ,  G11B5/187 ,  G11B5/31 ,  G11B5/60

CPC classification number: C04B35/645 ,  C04B35/117 ,  C04B35/5603 ,  C04B35/6455

Abstract: Substrate materials for magnetic heads consisting of 24-75 mol % of .alpha.-Al.sub.2 O.sub.3 and the remaining 76-25 mol % of TiC.sub.X O.sub.Y N.sub.Z, or TiC.sub.X O.sub.Y N.sub.Z containing a small amount of additives, that has a NaCl-type structure which retain known characteristics required on such materials and have controlled sizes of crystallites of Al.sub.2 O.sub.3 and TiC.sub.X O.sub.Y N.sub.Z, uniformly dispersed TiC.sub.X O.sub.Y N.sub.Z crystallites and, if any, additive elements, in which internal stress is relieved. The materials are intended for eliminating problems in machining to form steps and thus for fabricating high-precision thin-film heads for high-density recording.

Abstract translation: 由24-75mol％的α-Al 2 O 3和剩余的76-25mol％的TiCXOYNZ或含有少量添加剂的TiCXOYNZ组成的磁头用基材，其具有保持已知特性所需的已知特性的NaCl型结构 材料，并且具有Al 2 O 3和TiCXOYNZ的微晶的受控尺寸，均匀分散的TiCXOYNZ微晶和（如果有的话）消除内部应力的添加元素。 这些材料旨在消除加工中的问题以形成步骤，并因此用于制造用于高密度记录的高精度薄膜头。

公开(公告)号：US4902651A

公开(公告)日：1990-02-20

申请号：US021227

申请日：1987-03-03

Applicant: Toshiaki Wada ,  Mitsuhiko Furukawa ,  Masaharu Shiroyama ,  Mitsuyoshi Nagano ,  Michito Miyahara ,  Takashi Kitahira ,  Shigeki Mohri

Inventor： Toshiaki Wada ,  Mitsuhiko Furukawa ,  Masaharu Shiroyama ,  Mitsuyoshi Nagano ,  Michito Miyahara ,  Takashi Kitahira ,  Shigeki Mohri

IPC: C04B35/111 ,  C04B35/56

CPC classification number: C04B35/6455 ,  C04B35/111 ,  C04B35/5611

Abstract: A material for thin film magnetic head slider particularly suited for high recording, which is obtained by sintering a mixture consisting essentially of:5 to 45% by weight of titanium carbide component;0.2 to 10% by weight of zirconium oxide;0.05 to 2% by weight of oxide of yttrium;0.2 to 25% by weight of aluminum nitride; and the balance of Al.sub.2 O.sub.3 component substituted with 0.5 to 8% by weight being at least one machinability agent selected from the group consisting of oxides of Mg, Ca, B, Ni and Cr and complex oxides thereof.

Abstract translation: 一种特别适用于高记录的薄膜磁头滑块的材料，其通过烧结基本上由以下组成的混合物获得：混合物：5-45重量％的碳化钛组分; 0.2〜10重量％的氧化锆; 0.05〜2重量％的钇氧化物; 0.2〜25重量％的氮化铝; 以0.5〜8重量％取代的Al 2 O 3成分的余量为选自Mg，Ca，B，Ni，Cr的氧化物及其复合氧化物中的至少1种切削性试剂。

公开(公告)号：US5595947A

公开(公告)日：1997-01-21

申请号：US434833

申请日：1995-05-04

Applicant: Shinji Tsujimoto ,  Shin Mishima ,  Shigeru Kawahara ,  Toshiaki Wada ,  Michito Miyahara ,  Toyoshige Sasaki ,  Shigeki Mohri ,  Osamu Nakano

Inventor： Shinji Tsujimoto ,  Shin Mishima ,  Shigeru Kawahara ,  Toshiaki Wada ,  Michito Miyahara ,  Toyoshige Sasaki ,  Shigeki Mohri ,  Osamu Nakano

IPC: C04B35/10 ,  C04B35/117 ,  C04B35/56 ,  C04B35/58 ,  G11B5/10 ,  G11B5/31 ,  G11B5/39 ,  G11B5/60

CPC classification number: C04B35/645 ,  C04B35/117 ,  C04B35/5603 ,  C04B35/58021 ,  C04B35/6455 ,  G11B5/10 ,  G11B5/3103 ,  G11B5/3106 ,  G11B5/3903 ,  G11B5/3113 ,  G11B5/6011

Abstract: Substrate materials for magnetic heads consisting of 24-75 mol % of .alpha.-Al.sub.2 O.sub.3 and the remaining 76-25 mol % of TiC.sub.x O.sub.y N.sub.z containing a small amount of additives, that has a NaCl-type structure which retain known characteristics required on such materials and have controlled sizes of crystallites of Al.sub.2 O.sub.3 and TiC.sub.x O.sub.y N.sub.z, uniformly dispersed TiC.sub.x O.sub.y N.sub.z crystallites and, if any, additive elements, in which internal stress is relieved. The materials are intended for eliminating problems in IBE to form steps and thus for fabricating high-precision thin-film heads for high-density recording.

Abstract translation: 由24-75摩尔％的α-Al 2 O 3构成的磁头用基材和剩余的76-25摩尔％的含有少量添加剂的TiC x O y N z，其具有保留这种材料所需的已知特性的NaCl型结构并具有 控制Al2O3和TiCxOyNz的微晶尺寸，均匀分散TiCxOyNz微晶，以及任何添加元素，其中释放内应力。 这些材料旨在消除IBE中的问题以形成步骤，并因此用于制造用于高密度记录的高精度薄膜头。

公开(公告)号：US4814915A

公开(公告)日：1989-03-21

申请号：US58529

申请日：1987-05-26

Applicant: Toshiaki Wada ,  Mitsuhiko Furukawa ,  Masaharu Shiroyama ,  Michito Miyahara ,  Shigeki Mohri ,  Mitsuyoshi Nagano

Inventor： Toshiaki Wada ,  Mitsuhiko Furukawa ,  Masaharu Shiroyama ,  Michito Miyahara ,  Shigeki Mohri ,  Mitsuyoshi Nagano

IPC: C04B35/48 ,  C04B35/488 ,  C04B35/645 ,  G11B5/10 ,  G11B5/105 ,  G11B5/127 ,  G11B5/31 ,  G11B15/64

CPC classification number: G11B5/10 ,  C04B35/4885 ,  C04B35/645 ,  G11B5/3106

Abstract: A magnetic head slider and a material for it which comprises a sintered body obtained by sintering a raw material powder composed of 65 to 90% by weight of ZrO.sub.2 component containing therein a stabilizer and the balance of Al.sub.2 O.sub.3 component, 2% by weight or below of which has been substituted with a binder. The stabilizer is Y.sub.2 O.sub.3, MgO or CeO and the binder is Y.sub.2 O.sub.3 or MgO.

Abstract translation: 一种磁头滑块及其材料，其特征在于，包括烧结体，该烧结体通过将含有65〜90重量％的含有稳定剂的ZrO 2成分和余量的Al 2 O 3成分，2重量％以下的原料粉末 其已被粘合剂取代。 稳定剂为Y2O3，MgO或CeO，粘合剂为Y2O3或MgO。

公开(公告)号：US4796127A

公开(公告)日：1989-01-03

申请号：US143245

申请日：1988-01-11

Applicant: Toshiaki Wada ,  Mitsuhiko Furukawa ,  Masaharu Shiroyama ,  Michito Miyahara ,  Mitsuyoshi Nagano ,  Shigeki Mohri

Inventor： Toshiaki Wada ,  Mitsuhiko Furukawa ,  Masaharu Shiroyama ,  Michito Miyahara ,  Mitsuyoshi Nagano ,  Shigeki Mohri

IPC: G11B5/127 ,  C04B35/10 ,  G11B5/10 ,  G11B5/31 ,  G11B5/60 ,  G11B5/73 ,  G11B5/733 ,  G11B5/82

CPC classification number: G11B5/3106 ,  G11B5/10 ,  G11B5/6005

Abstract: A recording head slider comprises a slider body having a fluid bearing surface on a primary surface thereof and at least one transducer on at least one side of the slider body, the slider body being made of a sintered body produced by sintering a base composition consisting essentially of 10-40 percent by volume of silicon carbide and the balance being alumina. The base composition may comprise 0.2-10 percent by weight of sintering aids MgO, Y.sub.2 O.sub.3, ZrO.sub.2, CaO, Er.sub.2 O.sub.3 and Cr.sub.2 O.sub.3. This slider has high precision machinability and compatibility with recording media.

Abstract translation: 记录头滑块包括滑块体，该主体在其主表面上具有流体支承表面，并且在滑块体的至少一侧具有至少一个换能器，滑块体由烧结体制成，所述烧结体基本上由 为10-40体积％的碳化硅，余量为氧化铝。 基础组合物可以包含0.2-10重量％的烧结助剂MgO，Y 2 O 3，ZrO 2，CaO，Er 2 O 3和Cr 2 O 3。 该滑块具有高精度的机械加工性和与记录介质的兼容性。

公开(公告)号：US5914285A

公开(公告)日：1999-06-22

申请号：US918756

申请日：1997-08-25

Applicant: Toyoshige Sasaki ,  Shigeki Mohri ,  Osamu Nakano ,  Shin Mishima ,  Shigeru Kawahara ,  Naoyuki Okamoto

Inventor： Toyoshige Sasaki ,  Shigeki Mohri ,  Osamu Nakano ,  Shin Mishima ,  Shigeru Kawahara ,  Naoyuki Okamoto

IPC: C04B35/56

CPC classification number: C04B35/645 ,  C04B35/5603 ,  C04B35/5607 ,  C04B35/5611 ,  C04B35/5626

Abstract: To provide a substrate material having characteristics suitable to a magnetic head for attaining high recording density. A substrate material for a magnetic head comprising a matrix phase of a carbide of one or more of Ti, W and Ta and a dispersion phase of an oxide of one or more of Al.sub.2 O.sub.3, CrO.sub.3, and ZrO.sub.2, in which the material comprises 60 to 95 vol % of the matrix phase of the carbide. Further, a single phase in which the ingredients of carbides as the matrix phase comprise (Ti.sub.j W.sub.m Ta.sub.n)C.sub.x is preferred. Further, oxygen and/or nitrogen may be solid-solubilized in the carbide MeC of the matrix phase wherein Me is one or more of Ti, W, and Ta.

Abstract translation: 为了提供具有适于磁头的特性以获得高记录密度的基片材料。 一种用于磁头的衬底材料，其包括Ti，W和Ta中的一种或多种的碳化物的基质相和Al 2 O 3，CrO 3和ZrO 2中的一种或多种的氧化物的分散相，其中所述材料包含60至 95体积％的碳化物的基体相。 此外，作为基质相的碳化物成分优选为（TijWmTan）C x的单相。 此外，氧和/或氮可以固溶在基质相的碳化物MeC中，其中Me是Ti，W和Ta中的一种或多种。