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    Ceramic-metal composite and method to form said composite
    3.
    发明授权
    Ceramic-metal composite and method to form said composite 失效
    陶瓷 - 金属复合材料和形成所述复合材料的方法

    公开(公告)号：US06630247B1

    公开(公告)日：2003-10-07

    申请号：US09921810

    申请日：2001-08-03

    申请人： Richard T. Fox ,  Chan Han ,  Aleksander J. Pyzik

    发明人： Richard T. Fox ,  Chan Han ,  Aleksander J. Pyzik

    IPC分类号： C22C2100

    CPC分类号： B22D19/14 ,  C22C1/058 ,  C22C1/1036 ,  C22C2001/1057 ,  Y10T428/12007

    摘要： A ceramic-metal composite that is tough and stiff has been prepared and is comprised of an inert ceramic (e.g., alumina) embedded and dispersed in a matrix comprised of a metal (e.g., aluminum), a reactive ceramic (e.g., boron carbide) and a reactive ceramic-metal reaction product (e.g., AlB2, Al4BC, Al3B48C2, AlB12, Al4C3, AlB24C4 or mixtures thereof) wherein grains of the inert ceramic have an average grain size greater than or equal to the average grain size of grains of the reactive ceramic. The ceramic-metal composite may be prepared by forming a mixture comprised of an inert ceramic powder (e.g., alumina) and a reactive ceramic powder (e.g., boron carbide), the inert ceramic powder having an average particle size equal to or greater than the average particle size of the reactive ceramic powder, forming the mixture into a porous body and consolidating the porous body in the presence of a metal (e.g., aluminum) to form the ceramic-metal composite.

    摘要翻译： 已经制备了韧性和刚性的陶瓷 - 金属复合材料，其包括嵌入和分散在由金属（例如铝），反应性陶瓷（例如碳化硼）组成的基体中的惰性陶瓷（例如氧化铝） 和反应性陶瓷 - 金属反应产物（例如，AlB2，Al4BC，Al3B48C2，AlB12，Al4C3，AlB24C4或其混合物），其中惰性陶瓷的晶粒的平均晶粒尺寸大于或等于晶粒的平均晶粒尺寸 活性陶瓷。 陶瓷 - 金属复合材料可以通过形成由惰性陶瓷粉末（例如氧化铝）和反应性陶瓷粉末（例如碳化硼）组成的混合物来制备，惰性陶瓷粉末的平均粒度等于或大于 反应性陶瓷粉末的平均粒度，将混合物形成多孔体，并在金属（例如铝）的存在下固化多孔体以形成陶瓷 - 金属复合材料。

    Method of controlling infiltration of complex-shaped ceramic-metal composite articles and the products produced thereby
    4.
    发明授权
    Method of controlling infiltration of complex-shaped ceramic-metal composite articles and the products produced thereby 有权
    控制复合陶瓷 - 金属复合制品渗透的方法及由此产生的产品

    公开(公告)号：US06200526B1

    公开(公告)日：2001-03-13

    申请号：US09297968

    申请日：1999-05-11

    申请人： Richard T. Fox ,  Aleksander J. Pyzik ,  Chan Han ,  Robert T. Nilsson

    发明人： Richard T. Fox ,  Aleksander J. Pyzik ,  Chan Han ,  Robert T. Nilsson

    IPC分类号： B22F326

    CPC分类号： G11B5/7315 ,  C04B41/5155 ,  C04B41/52 ,  C04B41/88 ,  C04B41/89 ,  C22C1/1036 ,  C22C2001/1021 ,  C22C2001/1057 ,  G11B5/8404

    摘要： A process for preparing complex-shaped, ceramic-metal composite articles, comprising: (a) contacting a non-wettable powder that is non-wetting to a metal to be used for infiltration with a shaped ceramic body to form a layer of the non-wettable powder on one or more surfaces of the shaped ceramic body, wherein the shaped ceramic body has a region where there is no layer of the non-wettable powder, and (b) infiltration the shaped ceramic body with the metal through the region or regions where there is no layer of the non-wettable powder, such that a complex-shaped ceramic-metal composite comprising one or more metal phases and one or more ceramic phases is formed, wherein the article has substantially the net shape of the shaped ceramic body and undesirable regions of excess metal on the surface and undesirable phases within the complex-shaped ceramic-metal composite article near the surface are located only in the region or regions where there is no layer of the non-wettable powder. The process of the invention allows the preparation of complex-shaped ceramic-metal composite articles with undesirable regions of excess metal and undesirable phases on the surface(s), of, or within, the article only in the regions where there is, or was, no layer of non-wettable powder. The process of the invention allows the preparation of a complex-shaped ceramic-metal composite article which requires little or no machining of the surface(s) to achieve a finished article. A complex-shaped ceramic-metal composite article is prepared which contains few undesirable regions of excess metal and undesirable phases.

    摘要翻译： 一种制备复杂形状的陶瓷 - 金属复合制品的方法，包括：（a）将不湿润的非可润湿粉末与用于渗透的金属与成形陶瓷体接触以形成非 - 在成形陶瓷体的一个或多个表面上的可润湿粉末，其中成形陶瓷体具有不存在不可湿性粉末层的区域，（b）使成形陶瓷体与金属渗透穿过该区域或 没有不可湿粉末层的区域，使得形成包含一个或多个金属相和一个或多个陶瓷相的复合形状的陶瓷 - 金属复合材料，其中制品具有基本上成形陶瓷的净形状 表面上的多余金属的主体和不期望的区域以及表面附近的复合陶瓷 - 金属复合制品内的不期望的相位仅位于不具有不可湿性粉末层的区域或区域中。 本发明的方法允许制备复合形状的陶瓷 - 金属复合制品，其具有不需要的过量金属区域和不期望的相，仅在制品的表面上或内部存在， ，无层不可湿粉。 本发明的方法允许制备复杂形状的陶瓷 - 金属复合制品，其需要很少或不需要加工表面以实现最终制品。 制备复杂形状的陶瓷 - 金属复合制品，其包含少量不需要的过量金属和不期望的相的区域。

    Method of controlling infiltration of complex-shaped ceramic-metal composite articles and the products produced thereby
    9.
    发明授权
    Method of controlling infiltration of complex-shaped ceramic-metal composite articles and the products produced thereby 失效
    控制复合陶瓷 - 金属复合制品渗透的方法及由此产生的产品

    公开(公告)号：US5900277A

    公开(公告)日：1999-05-04

    申请号：US762467

    申请日：1996-12-09

    申请人： Richard T. Fox ,  Chan Han ,  Aleksander J. Pyzik ,  Robert T. Nilsson

    发明人： Richard T. Fox ,  Chan Han ,  Aleksander J. Pyzik ,  Robert T. Nilsson

    IPC分类号： B22D19/00 ,  C04B41/51 ,  C04B41/52 ,  C04B41/88 ,  C04B41/89 ,  C22C1/10 ,  G11B5/73 ,  G11B5/84 ,  B05D1/06 ,  B05D1/32

    CPC分类号： G11B5/7315 ,  C04B41/5155 ,  C04B41/52 ,  C04B41/88 ,  C04B41/89 ,  C22C1/1036 ,  G11B5/8404 ,  C22C2001/1021 ,  C22C2001/1057

    摘要： A process for preparing complex-shaped, ceramic-metal composite articles, comprising:a) contacting a non-wettable powder that is non-wetting to a metal to be used for infiltration with a shaped ceramic body to form a layer(s) of the non-wettable powder on one or more surface(s) of the shaped ceramic body wherein the shaped ceramic body has a region(s) where there is no layer of the non-wettable powder;b) infiltrating the shaped ceramic body with the metal through the region(s) where there is no layer of the non-wettable powder such that a complex-shaped ceramic-metal composite comprising one or more metal phases and one or more ceramic phases is formed, wherein the article has substantially the net shape of the shaped ceramic body and the undesirable regions of excess metal on the surface and undesirable phases within the complex-shaped ceramic-metal composite article near the surface are located only in the region(s) where there is no layer of the non-wettable powder.A complex-shaped ceramic-metal composite article with undesirable regions of excess metal and undesirable phases on the surface(s) of or within the article only where there is or was no layer of non-wettable powder.The process of the invention allows the preparation of complex-shaped ceramic-metal composite articles with undesirable regions of excess metal and undesirable phases on the surface(s) of or within the article only in the regions where there is or was no layer of non-wettable powder. The process of the invention allows the preparation of a complex-shaped ceramic-metal composite article which requires little or no machining of the surface(s) to achieve a finished article. A complex-shaped ceramic-metal composite article is prepared which contains few undesirable regions of excess metal and undesirable phases.

    摘要翻译： 一种制备复杂形状的陶瓷 - 金属复合制品的方法，包括：a）将不湿润的非可润湿粉末与用于渗透的金属与成形陶瓷体接触，形成一层 成形陶瓷体的一个或多个表面上的不可湿性粉末，其中成形陶瓷体具有不存在不可湿性粉末层的区域; b）通过不具有不可湿性粉末层的区域将金属渗入成形陶瓷体，使得包含一个或多个金属相和一个或多个陶瓷相的复合形状的陶瓷 - 金属复合材料为 形成，其中制品具有基本上成形陶瓷体的净形状，并且表面上的不需要的过量金属的区域和复合形陶瓷 - 金属复合制品附近的不期望的相位仅位于该区域中， 那里没有一层不可湿润的粉末。 一种复合形状的陶瓷 - 金属复合制品，其中仅在没有或不存在不可湿性粉末层的情况下，在制品的表面或物品的表面上具有不需要的过量金属和不期望的相的区域。 本发明的方法允许制备复合形状的陶瓷 - 金属复合制品，其中在不存在或不存在非层的区域内，在制品表面或制品内表面具有不需要的过量金属和不期望的相的区域， 可润滑的粉末。 本发明的方法允许制备复杂形状的陶瓷 - 金属复合制品，其需要很少或不需要加工表面以实现最终制品。 制备复杂形状的陶瓷 - 金属复合制品，其包含少量不需要的过量金属和不期望的相的区域。

    Method for Making Porous Acicular Mullite-Containing Composites
    10.
    发明申请
    Method for Making Porous Acicular Mullite-Containing Composites 有权
    制备多孔针状莫来石复合材料的方法

    公开(公告)号：US20110166018A1

    公开(公告)日：2011-07-07

    申请号：US13059990

    申请日：2009-09-18

    申请人： Daniel Grohol ,  Chan Han ,  Aleksander J. Pyzik

    发明人： Daniel Grohol ,  Chan Han ,  Aleksander J. Pyzik

    IPC分类号： B01J32/00

    CPC分类号： C04B35/195 ,  C04B35/185 ,  C04B41/5025 ,  C04B2235/3463 ,  C04B2235/3481

    摘要： Porous composites of mullite and cordierite are formed by firing an acicular mullite body in the presence of a magnesium source and a silicon source. In some variations of the process, the magnesium and silicon sources are present when the acicular mullite body is formed. In other variations, the magnesium source and the silicon source are applied to a previously-formed acicular mullite body. Surprisingly, the composites have coefficients of linear thermal expansion that are intermediate to those of mullite and cordierite alone, and have higher fracture strengths than cordierite at a similar porosity. Some of the cordierite forms at grain boundaries and/or points of intersection between mullite needles, rather than merely coating the needles. The presence of magnesium and silicon sources during acicular mullite formation does not significantly affect the ability to produce a highly porous network of mullite needles.

    摘要翻译： 莫来石和堇青石的多孔复合材料是通过在镁源和硅源的存在下焙烧针状莫来石体形成的。 在该方法的一些变型中，当形成针状莫来石体时，存在镁和硅源。 在其它变型中，将镁源和硅源施加到预先形成的针状莫来石体上。 令人惊奇的是，复合材料的线性热膨胀系数与莫来石和堇青石单体的中间相似，并且具有比类似孔隙率的堇青石更高的断裂强度。 在莫来石针之间的晶界和/或交叉点处的一些堇青石形式，而不仅仅是涂覆针。 在针状莫来石形成过程中镁和硅源的存在并不会显着影响产生莫来石针的高度多孔网络的能力。