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    PREPARATION OF METAL-MATRIX COMPOSITE MATERIALS WITH HIGH PARTICULATE LOADINGS BY CONCENTRATION
    4.
    发明公开
    PREPARATION OF METAL-MATRIX COMPOSITE MATERIALS WITH HIGH PARTICULATE LOADINGS BY CONCENTRATION 有权
    生产高掺量VERSTÄRKERTEILCHEN浓缩金属基复合材料的

    公开(公告)号：EP1105545A1

    公开(公告)日：2001-06-13

    申请号：EP99936215.5

    申请日：1999-08-06

    申请人： ALCAN INTERNATIONAL LIMITED

    发明人： DOUTRE, Don, Allen ,  HAY, Gary ,  JIN, Iljoon ,  WALES, Peter ,  LLOYD, David J.

    IPC分类号： C22C1/10

    CPC分类号： C22C1/1036 ,  C22C1/1094 ,  C22C2001/1047 ,  H01L23/15 ,  H01L23/3733 ,  H01L2924/0002 ,  H01L2924/00

    摘要： A composite material having less than about 25 volume percent refractory particles in a metal matrix is concentrated to have about 37-45 volume percent refractory particles. The concentrating is preferably accomplished by heating the composite material to melt the matrix, and then contacting the molten composite material to a porous element having an average pore size greater than that of the average particle size. A small pressure differential, on the order of about one atmosphere, is applied across the porous element, so that metal matrix material separates from the composite material and flows through the porous element. The particulate volume fraction in the composite material gradually increases. When the particulate volume fraction exceeds about 37 volume percent, the mass of composite material becomes semi-solid and freestanding. The resulting composite material may be further processed, as by forming to a useful shape or diluting with another matrix material.

    Process for producing a composite material consisting of gamma titanium aluminide as matrix with titanium diboride as perserdoid therein
    7.
    发明公开
    Process for producing a composite material consisting of gamma titanium aluminide as matrix with titanium diboride as perserdoid therein 失效
    一种生产选自β-内钛的基体的铝化LS具有二硼化钛增强相的分散体的复合材料的过程。

    公开(公告)号：EP0577116A1

    公开(公告)日：1994-01-05

    申请号：EP93110479.8

    申请日：1993-06-30

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Morikawa, Takashi ,  Shamoto, Hiroyuki ,  Suganuma, Tetsuya

    IPC分类号： C22C32/00

    CPC分类号： C22C1/1036 ,  C22C32/0073 ,  C22C2001/1047

    摘要： A TiAℓ intermetallic compound source and a boride which is less stable than TiB₂ are mixed and melted, followed by solidification to form a TiB₂-dispersed TiAℓ-based composite material in which the TiB₂ is contained in an amount of 0.3 to 10% by volume. In this process, the dispersed TiB₂ particles become very fine, so that the hardness as well as the elongation and bending strength of the TiAℓ material are improved by the finely dispersed TiB₂ particles.

    摘要翻译： 甲的TiAl升金属间化合物源和硼化物的所有比的TiB 2不太稳定混合和熔化，随后固化以形成的TiB 2分散TIA升基础的，其中所述的TiB 2是在0.3量由包含在10％的复合材料 音量。 在这个过程中，分散的TiB 2颗粒变得非常细，所以做了硬度以及伸长率和弯曲强度的TiAl金属升材料的由细分散的TiB 2颗粒得到改善。

    PREPARATION OF COMPOSITE MATERIALS.
    8.
    发明公开
    PREPARATION OF COMPOSITE MATERIALS. 失效
    HERSTELLUNG VON KOMPOSITMATERIALIEN。

    公开(公告)号：EP0324832A4

    公开(公告)日：1989-11-23

    申请号：EP88906507

    申请日：1988-07-08

    申请人： DURAL ALUMINUM COMPOSITES CORP

    发明人： SKIBO MICHAEL D ,  SCHUSTER DAVID M

    IPC分类号： B22D19/14 ,  B01F7/00 ,  B01F7/16 ,  B01F15/00 ,  C22C1/00 ,  C22C1/10 ,  C22C32/00 ,  F27D3/00 ,  F27D27/00

    CPC分类号： B01F7/00641 ,  B01F7/16 ,  B01F7/166 ,  C22C1/005 ,  C22C1/1005 ,  C22C1/1036 ,  C22C32/0063 ,  C22C2001/1047 ,  F27D3/0026 ,  F27D27/00

    摘要： A method for preparing cast composite materials of nonmetallic carbide particles in a metallic matrix, wherein the particles are roasted and then mixed into a molten metallic alloy to wet the molten metal to the particles, and the particles and metal are sheared past each other to promote wetting of the particles by the metal. The particles are roasted in air or other source of oxygen to remove the carbon from the near-surface region of the particles and to produce an oxide surface diffusion barrier, resulting in a reduction of carbide formation in the molten matrix. The mixing occurs while minimizing the introduction of gas into the mixture, and while minimizing the retention of gas at the particle-liquid interface. Mixing is done at a maximum temperature whereat the particles do not substantially chemically degrade in the molten metal during the time required for processing, and casting is done at a temperature sufficiently high that there is no solid metal present in the melt.

    摘要翻译： 一种在金属基体中制备非金属碳化物颗粒的铸造复合材料的方法，其中将颗粒焙烧，然后混合成熔融金属合金以将熔融金属润湿成颗粒，并且颗粒和金属彼此剪切以促进 用金属润湿颗粒。 将颗粒在空气或其他氧源中焙烧以从颗粒的近表面区域除去碳并产生氧化物表面扩散阻挡层，导致熔融基体中碳化物形成的减少。 混合发生的同时最小化向混合物中引入气体，同时最小化气体在颗粒 - 液体界面处的滞留。 在最高温度下进行混合，在该温度下，在加工所需的时间内，熔融金属中的颗粒基本上不发生化学降解，并且在足够高的温度下进行铸造，使得熔融物中不存在固体金属。

    Composite material including matrix metal and metal cored ceramic surfaced fine powder material and apparatus and method for making it
    9.
    发明公开
    Composite material including matrix metal and metal cored ceramic surfaced fine powder material and apparatus and method for making it 失效
    有金属芯和陶瓷表面和金属作为基体材料和方法和设备用于制造复合细粉的复合物。

    公开(公告)号：EP0091108A2

    公开(公告)日：1983-10-12

    申请号：EP83103245.3

    申请日：1983-03-31

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Miura, Hirohisa ,  Satou, Hiroshi ,  Natsume, Toshio ,  Katagiri, Hidenori

    IPC分类号： C22C1/10 ,  B22F1/02 ,  B22F9/12

    CPC分类号： C22C1/1031 ,  B22F1/02 ,  B22F9/12 ,  C22C2001/1047

    摘要： A composite material including matrix metal and ceramic surface - metallic core fine powder material is disclosed, composed of fine particles each having a metallic core and a ceramic surface layer, in which the average value of the ratio of the thickness of the surface layer of a powder particle to the radius of the particle is substantially greater than 0.05, dispersed within a matrix of matrix metal. A method and an apparatus for making this material from matrix metal, core metal, and a gas which combines with the core metal to form the ceramic outer layers of the particles are also described, in which a gaseous mixture of vapor of the core metal and the gas is passed through a convergent-divergent nozzle and is thereby rapidly cooled by adiabatic expansion so that the core metal as it solidifies forms metal cores for fine particles while the gas reacts with the outer layers of these particles to form ceramic surface layers. the jet from the nozzle then impacting against the surface of a pool of the molten matrix metal.