CERAMIC HONEYCOMB STRUCTURE AND PRODUCTION METHOD THEREFOR |
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| 申请号 | EP14847996 | 申请日 | 2014-09-18 | 公开(公告)号 | EP2980049A4 | 公开(公告)日 | 2016-06-08 |
| 申请人 | HITACHI METALS LTD; | 发明人 | OKAZAKI SHUNJI; | ||||
| 摘要 | A ceramic honeycomb structure comprising large numbers of flow paths partitioned by porous cell walls; (a) the cell walls having porosity of 55-65%; and (b) in a pore diameter distribution in the cell walls measured by mercury porosimetry, (i) a pore diameter d2 at a cumulative pore volume corresponding to 2% of the total pore volume being 100-180 µm, a pore diameter d5 at 5% being 55-150 µm, a pore diameter d10 at 10% being 20 µm or more and less than 50 µm, a pore diameter d50 at 50% being 12-23 µm, a pore diameter at 85% being 6 µm or more and less than 10 µm, a pore diameter d90 at 90% being 4-8 µm, a pore diameter d98 at 98% being 3.5 µm or less, (d10 - d90)/d50 being 1.3-2, (d50 - d90)/d50 being 0.45-0.7, and (d10 - d50)/d50 being 0.75-1.4; (ii) the difference of a logarithm of the pore diameter at a cumulative pore volume corresponding to 20% of the total pore volume and a logarithm of the pore diameter at 80% being 0.39 or less; and (iii) the volume of pores of more than 100 µm being 0.05 cm 3 /g or less. | ||||||
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