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US07520911B2 Porous cordierite ceramic honeycomb article with improved strength and method of manufacturing same 有权
具有改善强度的多孔堇青石陶瓷蜂窝体制品及其制造方法

Porous cordierite ceramic honeycomb article with improved strength and method of manufacturing same
Abstract:
A porous cordierite ceramic honeycomb article with increased mechanical strength and thermal shock resistance. The porous cordierite ceramic honeycomb article has MA 2660 wherein MA=3645(IA)−106(CTE)+19(d90)+17(% porosity), MT=4711(IT)+116(CTE)−26(d90)−28(% porosity), and a CTE≦9×10−7/° C. in at least one direction. A method of manufacturing is also disclosed wherein the inorganic raw material mixture contains talc, an alumina-forming source, a silica-forming source, and 0-18 wt. % of a kaolin or calcined kaolin containing not more than 8 wt. % of a fine kaolin source having a median particle diameter of less than 7 μm, wherein the fired porous ceramic cordierite honeycomb article has a porosity
Abstract(Chinese):

具有增加的机械强度和耐热冲击性的多孔堇青石陶瓷蜂窝制品。 多孔堇青石陶瓷蜂窝体制品具有MA <2220或MT> 2660，其中<？在线公式描述=“在线公式”结束=“引线”> MA = 3645（IA）-106（CTE）+ 19（d90）+17（％孔隙率），<？in-line-formula description =“In-line formula”end =“tail”？> <？in-line-formula description =“In-line formula”end = “铅”→MT = 4711（IT）+116（CTE）-26（d90）-28（％孔隙率），<？在线公式描述=“在线公式”end =“tail”？> 和至少一个方向的CTE <= 9×10 -7 /℃。 还公开了一种制造方法，其中无机原料混合物含有滑石，形成氧化铝的源，二氧化硅形成源和0-18wt。 ％的高岭土或煅烧高岭土含有不超过8wt。 ％的中值粒径小于7μm的细高岭土源，其中烧成的多孔陶瓷堇青石蜂窝体制品的孔隙率<54％。 或者，如果大于8wt。 使用％的细高岭土源，则从1200℃至1300℃的缓慢升温速率不超过20℃/小时。

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