Method for forming metal matrix composites having variable filler
loadings and products produced thereby
    2.
    发明授权
    Method for forming metal matrix composites having variable filler loadings and products produced thereby 失效
    用于形成具有可变填料负载的金属基复合材料的方法和由此产生的产品

    公开(公告)号:US5287911A

    公开(公告)日:1994-02-22

    申请号:US883807

    申请日:1992-05-14

    IPC分类号: B22F3/26 C22C1/10 B22D19/14

    摘要: The present invention relates to a novel method for forming metal matrix composite bodies and novel products produced by the method. Particularly, a permeable mass of filler material or a preform is provided which has included therein at least two different matrix metal powders. Moreover, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with the filler material or preform, at least at some point during the process, which permits molten matrix metal, upon contact with the filler material or preform, to spontaneously infiltrate the filler material or preform. The presence of powdered matrix metal in the preform or filler material reduces the relative volume fraction of filler material to matrix metal.

    摘要翻译: 本发明涉及一种形成金属基体复合体的新方法和该方法制备的新型产品。 特别地,提供了一种填充材料或预制件的可渗透物质,其中包括至少两种不同的基质金属粉末。 此外,渗透增强剂和/或渗透增强剂前体和/或渗透气氛至少在该过程中的某一点处与填料或预型体连通,这允许熔融基体金属在与填充材料接触时或 预成型件,以自发地渗透填料或预制件。 在预成型件或填充材料中存在粉末状基质金属会降低填料与基体金属的相对体积分数。

    Ceramic composite and methods of making the same
    4.
    发明授权
    Ceramic composite and methods of making the same 失效
    陶瓷复合材料及其制作方法

    公开(公告)号:US5215666A

    公开(公告)日:1993-06-01

    申请号:US902515

    申请日:1992-06-22

    IPC分类号: B22D41/32 C04B35/65

    CPC分类号: B22D41/32 C04B35/652

    摘要: A refractory component for use in contact with molten metal comprising a ceramic matrix which is three-dimensionally interconnected, said matrix comprising an oxidation reaction product of aluminum parent metal, said ceramic matrix containing less than about 0.5% by weight residual parent metal, said ceramic matrix embedding at least one filler material, thereby forming a ceramic composite body, said ceramic composite body having a porosity which is interconnected, said interconnected porosity comprising openings having a mean diameter of less than about 6 microns.

    摘要翻译: 用于与熔融金属接触的难熔组分,其包含三维互连的陶瓷基体,所述基体包含铝母体金属的氧化反应产物,所述陶瓷基体含有少于约0.5重量%的残余母体金属,所述陶瓷 基体嵌入至少一种填充材料,由此形成陶瓷复合体,所述陶瓷复合体具有互连的孔隙率,所述相互连接的孔隙率包括平均直径小于约6微米的开口。

    Three-dimensional printing methods and materials for making dental products
    6.
    发明申请
    Three-dimensional printing methods and materials for making dental products 审中-公开
    用于制作牙科产品的三维印刷方法和材料

    公开(公告)号:US20090148813A1

    公开(公告)日:2009-06-11

    申请号:US12231079

    申请日:2008-08-29

    IPC分类号: A61C13/08 A61C13/20

    摘要: This invention relates to ink-jet printing systems for making dental products such as artificial teeth, dentures, splints, veneers, inlays, onlays, copings, frame patterns, crowns and bridges and the like. An ink-jet printer is used to discharge wax-like polymerizable material in a layer-by-layer manner to build-up the object. In other methods, a heated capillary or dropper can be used to apply the polymerizable material. The resulting three-dimensional object has good dimensional stability. Light irradiation can be used to cure and harden the material, thereby producing the final dental product.

    摘要翻译: 本发明涉及用于制造诸如人造牙,假牙,夹板,单板,嵌体,镶嵌,复制,框架图案,冠和桥等的牙科产品的喷墨打印系统。 使用喷墨打印机逐层排出蜡状可聚合材料以构成物体。 在其他方法中,可以使用加热的毛细管或滴管来施加可聚合材料。 所得到的三维物体具有良好的尺寸稳定性。 光照射可用于固化和硬化材料,从而产生最终的牙科产品。

    Ceramic composite and methods of making the same
    8.
    发明授权
    Ceramic composite and methods of making the same 失效
    陶瓷复合材料及其制作方法

    公开(公告)号:US5434113A

    公开(公告)日:1995-07-18

    申请号:US68456

    申请日:1993-05-28

    IPC分类号: B22D41/32 C04B35/65

    摘要: There is provided a method for producing a self-supporting ceramic composite comprising (1) a ceramic matrix obtained by oxidation of an aluminum zinc alloy to form a polycrystalline oxidation reaction product of the metal with an oxidant, and (2) one or more fillers embedded by the matrix. The metal alloy and permeable mass of filler having at least one defined surface boundary are oriented relative to each other so that formation of the oxidation reaction product will occur into said mass of filler and in a direction towards said defined surface boundary. On heating the metal to a first temperature above its melting point but below the melting point of said oxidation reaction product to form a body of molten parent metal, the molten metal reacts with said oxidant to form said oxidation reaction product which infiltrates said mass of filler to said defined surface boundary. The resulting infiltrated mass is heated to a second temperature in order to remove or oxidize at least a substantial portion of one or more residual non-oxidized metallic constituents from or in said infiltrated mass without substantial formation of said oxidation reaction product beyond said defined surface boundary, thereby producing a self-supporting ceramic composite.

    摘要翻译: 提供一种自支撑陶瓷复合体的制造方法,其特征在于,包括:(1)通过氧化铝锌合金得到的陶瓷基体,形成金属与氧化剂的多晶氧化反应产物,(2)一种或多种填料 由矩阵嵌入。 具有至少一个限定表面边界的金属合金和可渗透质量的填料相对于彼此定向,使得氧化反应产物的形成将发生在所述填料块中并朝向所述限定的表面边界的方向。 在将金属加热到高于其熔点但低于所述氧化反应产物的熔点的第一温度以形成熔融母体金属体时,熔融金属与所述氧化剂反应形成所述氧化反应产物,其渗透所述填料填料 到所述限定的表面边界。 将所得的渗透物质加热至第二温度,以从所述渗透物质中或所述渗透物质中除去或氧化至少大部分的一种或多种残留的非氧化金属成分,而不会在所述限定的表面边界之上基本形成所述氧化反应产物 ,从而制备自支撑陶瓷复合材料。

    Method of making ceramic composites
    10.
    发明授权
    Method of making ceramic composites 失效
    陶瓷复合材料的制备方法

    公开(公告)号:US5246895A

    公开(公告)日:1993-09-21

    申请号:US871467

    申请日:1992-04-20

    IPC分类号: C04B35/65 C04B35/71

    CPC分类号: C04B35/71 C04B35/652

    摘要: The invention relates to a method for producing ceramic composites obtained by oxidation of a parent metal to form a polycrystalline ceramic material by providing a filler having a coating of a silicon source on at least a portion of the filler different in composition from the primary composition of the filler, said silicon source possessing intrinsic doping properties. A body of molten parent metal, adjacent a mass of the filter material, reacts with an oxidant to form an oxidation reaction product which infiltrates the adjacent mass of filler, thereby forming the ceramic composite.

    摘要翻译: 本发明涉及一种生产陶瓷复合材料的方法,该陶瓷复合材料通过使母体金属氧化以形成多晶陶瓷材料而获得,该方法是通过提供一种填料,该填料具有在至少一部分填料上的硅源涂层,该填料的组成不同于主要组成 填料,所述硅源具有固有的掺杂特性。 与过滤材料质量相邻的熔融母体金属与氧化剂反应形成渗透相邻填料填料的氧化反应产物,从而形成陶瓷复合材料。