Process for fabrication of large titanium diboride ceramic bodies
    11.
    发明授权
    Process for fabrication of large titanium diboride ceramic bodies 失效
    制造大型二硼化钛陶瓷体的方法

    公开(公告)号:US4812280A

    公开(公告)日:1989-03-14

    申请号:US853118

    申请日:1986-04-17

    IPC分类号: C04B35/58

    CPC分类号: C04B35/58071 C04B35/645

    摘要: A process for manufacturing large, fully dense, high purity TiB.sub.2 articles by pressing powders with a sintering aid at relatively low temperatures to reduce grain growth. The process requires stringent temperature and pressure applications in the hot-pressing step to ensure maximum removal of sintering aid and to avoid damage to the fabricated article or the die.

    摘要翻译: 通过在相对低的温度下用粉末助剂压制粉末以减少晶粒生长的方法制造大型,全密度,高纯度的TiB2制品。 该方法在热压步骤中需要严格的温度和压力应用,以确保最大程度地除去烧结助剂并避免损坏制造的制品或模具。

    Method and apparatus for making articles from particle based materials
    15.
    发明授权
    Method and apparatus for making articles from particle based materials 失效
    从颗粒基材料制造制品的方法和装置

    公开(公告)号:US5476622A

    公开(公告)日:1995-12-19

    申请号:US898914

    申请日:1992-06-12

    摘要: A method and apparatus for the production of articles made of a particle-based material; e.g., ceramics and sintered metals. In accordance with the invention, a thermally settable slurry containing a relatively high concentration of the particles is conveyed through an elongate flow area having a desired cross-sectional configuration. The slurry is heated as it is advanced through the flow area causing the slurry to set or harden in a shape which conforms to the cross-sectional configuration of the flow area. The material discharges from the flow area as a self-supporting solid of near net final dimensions. The article may then be sintered to consolidate the particles and provide a high density product.

    摘要翻译: 一种用于生产由颗粒基材料制成的制品的方法和装置; 例如陶瓷和烧结金属。 根据本发明,含有相对高浓度颗粒的热固性浆料通过具有所需横截面构型的细长流动区域输送。 浆料在其通过流动区域前进时被加热,使得浆料固化或硬化成符合流动区​​域的横截面构造的形状。 材料从流动区域排放为近净最终尺寸的自支撑固体。 然后可以将制品烧结以固结颗粒并提供高密度产品。