利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

19 条记录 (耗时 0.022 秒)

    METHOD OF OBTAINING POROUS CERAMICS
    7.
    发明申请
    METHOD OF OBTAINING POROUS CERAMICS 有权
    获得多孔陶瓷的方法

    公开(公告)号：US20090069167A1

    公开(公告)日：2009-03-12

    申请号：US11658405

    申请日：2005-07-26

    申请人： Caroline Tardivat ,  Emmanuel Mercier ,  Christian His ,  Franceline Villermaux

    发明人： Caroline Tardivat ,  Emmanuel Mercier ,  Christian His ,  Franceline Villermaux

    IPC分类号： C04B38/02

    CPC分类号： C04B38/02 ,  C04B35/573 ,  C04B35/624 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2111/28 ,  C04B2235/3217 ,  C04B2235/3463 ,  C04B2235/3826 ,  C04B35/00 ,  C04B38/0051 ,  C04B38/0074

    摘要： A method of manufacturing a porous ceramic part, comprising the following steps in succession: a) preparing a mixture M containing a ceramic powder in suspension, at least one gelling agent and at least one foaming agent, at a mixing temperature which is higher than the gelling temperature of the gelling agent; b) shearing the mixture M at a foaming temperature which is higher than the gelling temperature, to obtain a foam; c) gelling the foam by cooling the mixture M to a temperature below the gelling temperature of the gelling agent; and d) drying the gelled foam to obtain a perform. According to the invention, a stabilizing agent is added to the mixture M, which agent has an instantaneous viscosity, in Pa·s, that increases by a factor of at least ten when a shear rate of the stabilizing agent is reduced from 100 s−1 to 0.

    摘要翻译： 一种制造多孔陶瓷部件的方法，包括以下步骤：a）在混合温度高于所述混合物的混合温度下制备含有悬浮液中的陶瓷粉末的混合物M，至少一种胶凝剂和至少一种发泡剂 胶凝剂的胶凝温度; b）在高于胶凝温度的发泡温度下剪切混合物M，得到泡沫; c）通过将混合物M冷却至低于胶凝剂凝胶化温度的温度来胶凝泡沫; 和d）干燥凝胶状泡沫以获得性能。 根据本发明，将稳定剂添加到混合物M中，该混合物M具有瞬时粘度（Pa.s），当稳定剂的剪切速率从100s减小至约10时，其增加至少十倍。 1到0。