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A platform for research: civil engineering, architecture and urbanism
COLUMNAR HONEYCOMB STRUCTURE AND METHOD OF PRODUCING THE SAME
To suppress deterioration of mechanical strength of a columnar honeycomb structure containing a sintering aid and cordierite as a main component.SOLUTION: Provided is a columnar honeycomb structure that has a first cell and a second cell alternately arranged adjacent to each other with a partition wall therebetween, and sealing portions. The structure contains cordierite as a main component and one or more of sintering aids selected from ceria, zirconia, and titania, wherein when an average porosity of a portion in a range B from the deepest portion of the sealing portion of the first bottom face in the extending direction of the second cells to the first bottom face in a region of the partition wall in a range A from the deepest portion of the sealing portion of a second bottom face in an extending direction of the first cell to the second bottom face is defined as P1 (%), and when an average porosity of a portion of the partition wall in a range C from the deepest portion of the sealing portion of the second bottom face in the extending direction of the first cell to the deepest portion of the sealing portion of the first bottom face in the extending direction of the second cell is P2 (%), the relationship -4≤P1-P2≤7 is satisfied.SELECTED DRAWING: Figure 2
【課題】焼結助剤を含有しコージェライトを主成分とする柱状ハニカム構造体の機械的強度の低下を抑制する。【解決手段】隔壁を挟んで交互に隣接配置される第１セル及び第２セルと、目封止部とを有する柱状ハニカム構造体。該構造体は、主成分としてのコージェライトと、セリア、ジルコニア、及びチタニアから選択される一種又は二種以上の焼結助剤とを含有しており、隔壁のうち、第二底面が有する目封止部の第１セルの延びる方向の最深部から第二底面までの範囲Ａにおける部位、及び、第一底面が有する目封止部の第２セルの延びる方向の最深部から第一底面までの範囲Ｂにおける部位の平均気孔率をＰ1（％）とし、隔壁のうち、第二底面が有する目封止部の第１セルの延びる方向の最深部から、第一底面が有する目封止部の第２セルの延びる方向の最深部までの範囲Ｃにおける部位の平均気孔率をＰ2（％）とすると、－４≦Ｐ1－Ｐ2≦７を満たす。【選択図】図２
COLUMNAR HONEYCOMB STRUCTURE AND METHOD OF PRODUCING THE SAME
To suppress deterioration of mechanical strength of a columnar honeycomb structure containing a sintering aid and cordierite as a main component.SOLUTION: Provided is a columnar honeycomb structure that has a first cell and a second cell alternately arranged adjacent to each other with a partition wall therebetween, and sealing portions. The structure contains cordierite as a main component and one or more of sintering aids selected from ceria, zirconia, and titania, wherein when an average porosity of a portion in a range B from the deepest portion of the sealing portion of the first bottom face in the extending direction of the second cells to the first bottom face in a region of the partition wall in a range A from the deepest portion of the sealing portion of a second bottom face in an extending direction of the first cell to the second bottom face is defined as P1 (%), and when an average porosity of a portion of the partition wall in a range C from the deepest portion of the sealing portion of the second bottom face in the extending direction of the first cell to the deepest portion of the sealing portion of the first bottom face in the extending direction of the second cell is P2 (%), the relationship -4≤P1-P2≤7 is satisfied.SELECTED DRAWING: Figure 2
【課題】焼結助剤を含有しコージェライトを主成分とする柱状ハニカム構造体の機械的強度の低下を抑制する。【解決手段】隔壁を挟んで交互に隣接配置される第１セル及び第２セルと、目封止部とを有する柱状ハニカム構造体。該構造体は、主成分としてのコージェライトと、セリア、ジルコニア、及びチタニアから選択される一種又は二種以上の焼結助剤とを含有しており、隔壁のうち、第二底面が有する目封止部の第１セルの延びる方向の最深部から第二底面までの範囲Ａにおける部位、及び、第一底面が有する目封止部の第２セルの延びる方向の最深部から第一底面までの範囲Ｂにおける部位の平均気孔率をＰ1（％）とし、隔壁のうち、第二底面が有する目封止部の第１セルの延びる方向の最深部から、第一底面が有する目封止部の第２セルの延びる方向の最深部までの範囲Ｃにおける部位の平均気孔率をＰ2（％）とすると、－４≦Ｐ1－Ｐ2≦７を満たす。【選択図】図２
COLUMNAR HONEYCOMB STRUCTURE AND METHOD OF PRODUCING THE SAME
柱状ハニカム構造体及びその製造方法
TSUCHIYA HIRONORI (author)
2024-10-11
Patent
Electronic Resource
Japanese
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