Laminated composite of magnetic alloy powder and ceramic powder and
process for making same
    1.
    发明授权
    Laminated composite of magnetic alloy powder and ceramic powder and process for making same 失效
    磁性合金粉末和陶瓷粉末的层压复合材料及其制造方法

    公开(公告)号:US5935722A

    公开(公告)日:1999-08-10

    申请号:US922940

    申请日:1997-09-03

    IPC分类号: C04B37/02 H01F41/02 G11B5/66

    摘要: A laminated composite structure of alternating metal powder layers, and layers formed of an inorganic bonding media powder, and a method for manufacturing same are discosed. The method includes the steps of assembling in a cavity alternating layers of a metal powder and an inorganic bonding media of a ceramic, glass, and glass-ceramic. Heat, with or without pressure, is applied to the alternating layers until the particles of the metal powder are sintered together and bonded into the laminated composite structure by the layers of sintered inorganic bonding media to form a strong composite structure. The method finds particular application in the manufacture of high performance magnets wherein the metal powder is a magnetic alloy powder.

    摘要翻译: 交替的金属粉末层和由无机粘合介质粉末形成的层的层压复合结构及其制造方法被提出。 该方法包括以下步骤:在陶瓷,玻璃和玻璃 - 陶瓷的金属粉末和无机粘合介质的交替层的空腔中进行组装。 将有或没有压力的热量施加到交替层,直到金属粉末的颗粒被烧结在一起,并通过烧结的无机粘合介质层结合到层压复合结构中以形成强的复合结构。 该方法在制造其中金属粉末是磁性合金粉末的高性能磁体中具有特别的应用。

    Composite of ceramic-coated magnetic alloy particles
    2.
    发明授权
    Composite of ceramic-coated magnetic alloy particles 失效
    陶瓷涂层磁性合金颗粒复合材料

    公开(公告)号:US6051324A

    公开(公告)日:2000-04-18

    申请号:US929412

    申请日:1997-09-15

    IPC分类号: H01F1/24 H01F41/02 B32B5/16

    摘要: A composite structure and method for manufacturing same, the composite structure being comprised of metal particles and an inorganic bonding media. The method comprises the steps of coating particles of a metal powder with a thin layer of an inorganic bonding media selected from the group of powders consisting of a ceramic, glass, and glass-ceramic. The particles are assembled in a cavity and heat, with or without the addition of pressure, is thereafter applied to the particles until the layer of inorganic bonding media forms a strong bond with the particles and with the layer of inorganic bonding media on adjacent particles. The resulting composite structure is strong and remains cohesive at high temperatures.

    摘要翻译: 复合结构及其制造方法,所述复合结构由金属颗粒和无机粘结介质构成。 该方法包括以下步骤:用选自由陶瓷,玻璃和玻璃 - 陶瓷组成的一组粉末组成的无机粘合介质的薄层涂覆金属粉末的颗粒。 将颗粒组装在空腔中,然后在加压或不加压下加热颗粒,直到无机粘合介质层与颗粒和相邻颗粒上的无机粘合介质层形成牢固的结合。 所得的复合结构是强的并且在高温下保持粘合。

    Composite of coated magnetic alloy particle
    3.
    发明授权
    Composite of coated magnetic alloy particle 失效
    复合涂层磁性合金颗粒

    公开(公告)号:US6110420A

    公开(公告)日:2000-08-29

    申请号:US366480

    申请日:1999-08-03

    IPC分类号: H01F1/24 H01F41/02 B22F1/00

    摘要: A composite structure and method for manufacturing same, the composite structure being comprised of metal particles and an inorganic bonding media. The method comprises the steps of coating particles of a metal powder with a thin layer of an inorganic bonding media selected from the group of powders consisting of a ceramic, glass, and glass-ceramic. The particles are assembled in a cavity and heat, with or without the addition of pressure, is thereafter applied to the particles until the layer of inorganic bonding media forms a strong bond with the particles and with the layer of inorganic bonding media on adjacent particles. The resulting composite structure is strong and remains cohesive at high temperatures.

    摘要翻译: 复合结构及其制造方法,所述复合结构由金属颗粒和无机粘结介质构成。 该方法包括以下步骤:用选自由陶瓷,玻璃和玻璃 - 陶瓷组成的一组粉末组成的无机粘合介质的薄层涂覆金属粉末的颗粒。 将颗粒组装在空腔中,然后在加压或不加压下加热颗粒,直到无机粘合介质层与颗粒和相邻颗粒上的无机粘合介质层形成牢固的结合。 所得的复合结构是强的并且在高温下保持粘合。

    Cesium iodide alloys
    4.
    发明授权
    Cesium iodide alloys 失效
    碘化铯合金

    公开(公告)号:US5171555A

    公开(公告)日:1992-12-15

    申请号:US645448

    申请日:1991-01-24

    IPC分类号: C01D3/12

    CPC分类号: C01D3/12

    摘要: A transparent, strong CsI alloy havign additions of monovalent iodides. Although the perferred iodide is AgI, RbI and CuI additions also contribute to an improved polycrystalline CsI alloy.

    摘要翻译: 一种透明,强的CsI合金可以添加一价碘化物。 虽然碘化物是AgI,但RbI和CuI添加剂也有助于改进的多晶CsI合金。

    Process for strengthening aluminum based ceramics and material
    5.
    发明授权
    Process for strengthening aluminum based ceramics and material 失效
    加强铝基陶瓷和材料的工艺

    公开(公告)号:US6110855A

    公开(公告)日:2000-08-29

    申请号:US50371

    申请日:1998-03-31

    摘要: A process for strengthening aluminum based ceramics is provided. A gaseous atmosphere consisting essentially of silicon monoxide gas is formed by exposing a source of silicon to an atmosphere consisting essentially of hydrogen and a sufficient amount of water vapor. The aluminum based ceramic is exposed to the gaseous silicon monoxide atmosphere for a period of time and at a temperature sufficient to produce a continuous, stable silicon-containing film on the surface of the aluminum based ceramic that increases the strength of the ceramic.

    摘要翻译: 提供了一种加强铝基陶瓷的方法。 基本上由一氧化硅气体组成的气体气体通过将硅源暴露于基本上由氢和足够量的水蒸气组成的气氛中而形成。 将铝基陶瓷暴露于气态一氧化硅气氛一段时间并且在足以在铝基陶瓷的表面上产生连续的稳定的含硅膜的温度下升高陶瓷的强度。

    Method for Producing Collagen/Apatite Composite Membrane for Guided Bone Regeneration
    6.
    发明申请
    Method for Producing Collagen/Apatite Composite Membrane for Guided Bone Regeneration 审中-公开
    用于引导骨再生的胶原/磷灰石复合膜的生产方法

    公开(公告)号:US20120114763A1

    公开(公告)日:2012-05-10

    申请号:US12093591

    申请日:2005-11-14

    IPC分类号: A61K33/42 A61P19/00

    摘要: Disclosed is a method for producing a collagen/apatite composite membrane useful as a barrier to protect fibrous connective tissues from infiltrating into a site of defective tissue or bone in guided tissue regeneration (GTR) or guided bone regeneration (GBR) procedures. Such composite membrane can be obtained by the steps of co-precipitating collagen and apatite in aqueous basic solution in a very well controlled manner, followed by casting the precipitation onto a filter paper, lyophilization and cross-linking. The method according to the present invention can allow forming a collagen/apatite composite membrane in which the crystals of apatite, in particular, hydroxyapatite are coated on and along with the collagen fiber direction without aggregation of self-assembled collagen fibers. Such composite membrane has excellent biological and mechanical properties such as biocompatibility, cell affinity, biodegradability and form stability, and therefore it can be used as a barrier for GTR. The method of the present invention can also allow the composite membrane to have microstructure enabling osteoblasts to be attached and proliferated well on the membrane, and can allow the properties of membrane to be controlled by adjusting its thickness in the formation of membrane, thereby providing a collagen/apatite composite membrane suitable to a needed use.

    摘要翻译: 公开了一种生产胶原/磷灰石复合膜的方法,所述胶原/磷灰石复合膜可用作保护纤维结缔组织在引导组织再生(GTR)或引导骨再生(GBR)程序中渗透到有缺陷组织或骨骼部位的屏障。 这样的复合膜可以通过以非常好的控制方式将胶原蛋白和磷灰石在水性碱性溶液中共沉淀,然后将沉淀物投射到滤纸上,冻干和交联的步骤获得。 根据本发明的方法可以形成胶原蛋白/磷灰石复合膜,其中磷灰石的结晶,特别是羟基磷灰石被涂覆在胶原纤维方向上并且与胶原纤维方向一起涂覆,而不会聚集自组装的胶原纤维。 这种复合膜具有生物相容性,细胞亲和力,生物降解性和形式稳定性等优异的生物和机械性能,因此可用作GTR的屏障。 本发明的方法还可以使得复合膜具有使得成骨细胞能够在膜上附着和增殖良好的微结构,并且可以通过调节其在膜形成中的厚度来控制膜的性质,由此提供 胶原蛋白/磷灰石复合膜适合需要使用。

    Silicon nitride sintered body with region varying microstructure and
method for manufacture thereof
    10.
    发明授权
    Silicon nitride sintered body with region varying microstructure and method for manufacture thereof 有权
    具有区域变化的微结构的氮化硅烧结体及其制造方法

    公开(公告)号:US6136738A

    公开(公告)日:2000-10-24

    申请号:US222241

    申请日:1998-12-28

    CPC分类号: C04B35/5935

    摘要: A silicon nitride sintered body is obtained by mixing 2.about.16 wt % of Yb.sub.2 O.sub.3 as a sintering additive with Si.sub.3 N.sub.4 powders including unavoidable impuirities, pressing the mixed powder into a desired form, and gas-pressure sintering the thusly pressed form, whereby an inner region of the sintered body has a fine microstructure, and an outer region thereof has a mixed microstructure in which elongated grains and fine grains co-exist and a method for manufacturing a silicon nitride sintered body, includes the steps of: adding and mixing 2.about.16 wt % of Yb.sub.2 O.sub.3 powder as a sintering additive into a silicon nitride (Si.sub.3 N.sub.4) powder; ball-milling the mixed powder to obtain a slurry; drying and classifying the slurry; press-forming the resultant powder in a die uniaxially and isostatically; and gas-pressure sintering the resultant compact body at a temperature in the range of 1800.about.2000.degree. C., whereby an inner region of the resultant sintered body has a fine microstructure, and an outer region of the resultant sintered body has a mixed microstructure in which elongated grains and fine grains co-exist.

    摘要翻译: 通过将2重量%的Yb 2 O 3作为烧结添加剂与包含不可避免的渗透性的Si 3 N 4粉末混合,将混合粉末压制成所需的形式,并将这样压制的气体加压烧结,得到氮化硅烧结体, 的烧结体具有精细的微观结构,其外部区域具有细长晶粒和细晶粒共存的混合微观结构和氮化硅烧结体的制造方法,包括以下步骤:添加并混合2 DIFFERENCE 16 重量%的作为烧结添加剂的Yb 2 O 3粉末成为氮化硅(Si 3 N 4)粉末; 对混合粉末进行球磨,得到浆料; 干燥和分级浆料; 将所得粉末在模具中单轴和等静压成型; 在1800℃〜2000℃的温度下对所得的压实体进行气体压力烧结,由此得到的烧结体的内部区域具有微观结构,所得烧结体的外部区域具有混合显微组织 其中细长晶粒和细晶粒共存。