Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Columnar honeycomb structure and method for producing same
The present invention provides a columnar honeycomb structure in which a decrease in mechanical strength is suppressed, and a method for manufacturing the same, the columnar honeycomb structure having an outer peripheral side wall, first cells and second cells alternately arranged adjacent to each other with partition walls interposed therebetween, and a hole sealing part, the outer peripheral side wall, the partition walls, and the hole sealing part being formed by firing, the partition wall contains cordierite as a main component and one or more sintering aids selected from the group consisting of cerium dioxide, zirconium dioxide, and titanium dioxide, and P1 (%) represents the average porosity of a portion in a specific range A and a portion in a specific range B in the partition wall, P2 (%) represents the average porosity of a portion in a specific range C in the partition wall, and P2 (%) represents the average porosity of a portion in a specific range C in the partition wall. -4 < = P1-P2 < = 7 is satisfied.
本发明提供一种抑制了机械强度降低的柱状蜂窝结构体及其制造方法，该柱状蜂窝结构体具有外周侧壁、隔着隔壁交替地相邻配置的第一孔格及第二孔格以及封孔部，外周侧壁、隔壁及封孔部经烧成而成，并且含有作为主成分的堇青石和选自二氧化铈、二氧化锆和二氧化钛中的一种或两种以上的烧结助剂，若将隔壁中的从特定范围A中的部位及特定范围B中的部位的平均气孔率设为P1(％)，将隔壁中的特定范围C中的部位的平均气孔率设为P2(％)，则满足‑4≤P1‑P2≤7。
Columnar honeycomb structure and method for producing same
The present invention provides a columnar honeycomb structure in which a decrease in mechanical strength is suppressed, and a method for manufacturing the same, the columnar honeycomb structure having an outer peripheral side wall, first cells and second cells alternately arranged adjacent to each other with partition walls interposed therebetween, and a hole sealing part, the outer peripheral side wall, the partition walls, and the hole sealing part being formed by firing, the partition wall contains cordierite as a main component and one or more sintering aids selected from the group consisting of cerium dioxide, zirconium dioxide, and titanium dioxide, and P1 (%) represents the average porosity of a portion in a specific range A and a portion in a specific range B in the partition wall, P2 (%) represents the average porosity of a portion in a specific range C in the partition wall, and P2 (%) represents the average porosity of a portion in a specific range C in the partition wall. -4 < = P1-P2 < = 7 is satisfied.
本发明提供一种抑制了机械强度降低的柱状蜂窝结构体及其制造方法，该柱状蜂窝结构体具有外周侧壁、隔着隔壁交替地相邻配置的第一孔格及第二孔格以及封孔部，外周侧壁、隔壁及封孔部经烧成而成，并且含有作为主成分的堇青石和选自二氧化铈、二氧化锆和二氧化钛中的一种或两种以上的烧结助剂，若将隔壁中的从特定范围A中的部位及特定范围B中的部位的平均气孔率设为P1(％)，将隔壁中的特定范围C中的部位的平均气孔率设为P2(％)，则满足‑4≤P1‑P2≤7。
Columnar honeycomb structure and method for producing same
柱状蜂窝结构体及其制造方法
TSUCHIYA YUSUKE (Autor:in)
01.10.2024
Patent
Elektronische Ressource
Chinesisch
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