首页> 外国专利> Porous molybdenum disilicide-based material prepared by self-propagating high temperature synthesis process, and method for preparing the same

Porous molybdenum disilicide-based material prepared by self-propagating high temperature synthesis process, and method for preparing the same

机译:通过自蔓延高温合成工艺制备的多孔二硅化钼基材料及其制备方法

摘要

A porous molybdenum disilicide-based material prepared by preheating a preform consisting of size-controlled molybdenum (Mo) powder and content-controlled silicon (Si) powder and igniting the preform to initiate self-propagating high temperature synthesis, and a method for preparing the same, are disclosed. The method comprises the steps of a) mixing molybdenum (Mo) powder and silicon (Si) powder in the stoichiometric ratio of 1:2; b) molding the mixed powder into a preform; c) preheating the preform under inert atmosphere; and d) igniting the top end of the preheated perform. The porous molybdenum disilicide-based material can control its pore size by appropriately controlling the size of molybdenum (Mo) powder, the content of silicon (Si) powder and preheating condition. Therefore, since the pore size gradient of the porous material is possible to form, the porous material can be used for filters with improved dirt-holding capacity.
机译:通过预热由尺寸控制的钼粉和含量控制的硅粉组成的预成型坯并点燃该预成型坯以引发自蔓延高温合成的多孔二硅化钼基材料及其制备方法相同,被公开。该方法包括以下步骤:a)以化学计量比为1:2混合钼(Mo)粉和硅(Si)粉; b)将混合粉末模制成预成型坯; c)在惰性气氛下预热瓶坯; d)点燃预热表演的顶端。可以通过适当地控制钼(Mo)粉末的尺寸,硅(Si)粉末的含量和预热条件来控制多孔二硅化钼基材料的孔径。因此,由于可以形成多孔材料的孔径梯度,因此可以将多孔材料用于具有更高的污物保持能力的过滤器。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号