A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CERAMIC HONEYCOMB STRUCTURE, MANUFACTURING METHOD THEREFOR, AND COAT MATERIAL
PROBLEM TO BE SOLVED: To provide a method capable of suppressing generation of cracks on an outer peripheral wall, eliminating a process for repairing cracks and improving yield even when a coated material is quickly dried at a temperature of over 100°C during manufacture of a large ceramic honeycomb structure, and a ceramic honeycomb structure having high thermal shock resistance.SOLUTION: There is provided a ceramic honeycomb structure comprising a ceramic honeycomb body having multiple cells formed by a porous barrier membrane and extending in an axial direction and an outer peripheral wall formed on the outer peripheral thereof. The outer peripheral wall has aggregates containing 65 to 97 pts.mass of cordierite particles and 3 to 35 pts.mass of silica particles and an amorphous matrix comprising colloidal oxide with a thin and long shape between the aggregates, where the amorphous oxide matrix is 0.5 to 15 mass% based on the aggregates.SELECTED DRAWING: Figure 1
【課題】大型のセラミックハニカム構造体の製造において、塗布したコート材を100℃を超える温度で急速に乾燥した場合であっても、外周壁のクラックの発生を抑え、クラックを補修する工程の削減及び歩留りの向上が可能な方法を提供すること、及び耐熱衝撃性の良好なセラミックハニカム構造体を提供すること。【解決手段】多孔質の隔壁により形成された軸方向に延びる多数のセルを有するセラミックハニカム体と、その外周面に形成された外周壁とからなるセラミックハニカム構造体であって、前記外周壁は、65〜97質量部のコーディエライト粒子と3〜35質量部のシリカ粒子とを含む骨材と、前記骨材の間に存在する細長い形状のコロイド状酸化物からなる非晶質マトリクスとを有し、前記非晶質酸化物マトリクスは、骨材に対して0.5〜15質量％であることを特徴とするセラミックハニカム構造体。【選択図】図1
CERAMIC HONEYCOMB STRUCTURE, MANUFACTURING METHOD THEREFOR, AND COAT MATERIAL
PROBLEM TO BE SOLVED: To provide a method capable of suppressing generation of cracks on an outer peripheral wall, eliminating a process for repairing cracks and improving yield even when a coated material is quickly dried at a temperature of over 100°C during manufacture of a large ceramic honeycomb structure, and a ceramic honeycomb structure having high thermal shock resistance.SOLUTION: There is provided a ceramic honeycomb structure comprising a ceramic honeycomb body having multiple cells formed by a porous barrier membrane and extending in an axial direction and an outer peripheral wall formed on the outer peripheral thereof. The outer peripheral wall has aggregates containing 65 to 97 pts.mass of cordierite particles and 3 to 35 pts.mass of silica particles and an amorphous matrix comprising colloidal oxide with a thin and long shape between the aggregates, where the amorphous oxide matrix is 0.5 to 15 mass% based on the aggregates.SELECTED DRAWING: Figure 1
【課題】大型のセラミックハニカム構造体の製造において、塗布したコート材を100℃を超える温度で急速に乾燥した場合であっても、外周壁のクラックの発生を抑え、クラックを補修する工程の削減及び歩留りの向上が可能な方法を提供すること、及び耐熱衝撃性の良好なセラミックハニカム構造体を提供すること。【解決手段】多孔質の隔壁により形成された軸方向に延びる多数のセルを有するセラミックハニカム体と、その外周面に形成された外周壁とからなるセラミックハニカム構造体であって、前記外周壁は、65〜97質量部のコーディエライト粒子と3〜35質量部のシリカ粒子とを含む骨材と、前記骨材の間に存在する細長い形状のコロイド状酸化物からなる非晶質マトリクスとを有し、前記非晶質酸化物マトリクスは、骨材に対して0.5〜15質量％であることを特徴とするセラミックハニカム構造体。【選択図】図1
CERAMIC HONEYCOMB STRUCTURE, MANUFACTURING METHOD THEREFOR, AND COAT MATERIAL
セラミックハニカム構造体及びその製造方法並びにコート材
SOGA WATARU (author)
2016-05-09
Patent
Electronic Resource
Japanese
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