System and Method for Fabricating Ceramic Substrates
    4.
    发明申请
    System and Method for Fabricating Ceramic Substrates 审中-公开
    制造陶瓷基板的系统和方法

    公开(公告)号:US20100048374A1

    公开(公告)日:2010-02-25

    申请号:US12473562

    申请日:2009-05-28

    IPC分类号: C03C10/14

    摘要: This invention provides a system and method for establishing proper quantities of components in the initial mixture to be used in the fabrication of a porous ceramic substrate. The components typically consist of a solvent, a bulk fiber such as mullite, an organic binder for use in extrusion of the green substrate, a glass/clay bonding phase that bonds the fibers upon high-temperature curing and a pore former that defines gaps between the particles and is vaporized out of the substrate during curing. By identifying the controllable factors related to each of the components, and adjusting the factors to vary the resulting strength and porosity of the cured substrate, an optimized strength and porosity performance can be achieved. The controlling factors for each component include its relative weight percent in the mixture. The fiber component is also controlled via fiber diameter, diameter uniformity, and fiber length-to-diameter aspect ratio. Likewise, pore former is also controlled by particle size and shape and particle density. The bonding phase may also be controlled based upon its contribution to the viscosity at sintering temperature.

    摘要翻译: 本发明提供了一种用于在用于制造多孔陶瓷衬底的初始混合物中建立适量的组分的系统和方法。 组分通常由溶剂,诸如莫来石的本体纤维,用于挤出生坯基材的有机粘合剂,在高温固化时粘合纤维的玻璃/粘土粘合相和定孔之间的间隙的成孔剂组成 在固化期间颗粒被蒸发出基底。 通过确定与每个部件相关的可控因素,并且调整因素以改变固化的基材的所得强度和孔隙率,可以实现优化的强度和孔隙率性能。 每个组分的控制因素包括混合物中的相对重量百分数。 纤维组分也通过纤维直径,直径均匀性和纤维长度与直径的比例进行控制。 同样,成孔剂也由颗粒尺寸和形状和颗粒密度控制。 结合阶段也可以基于其对烧结温度下的粘度的贡献来控制。