发明名称 |
CERAMIC HONEYCOMB STRUCTURE AND ITS PRODUCTION METHOD AND COATING MATERIAL USED THEREFOR |
摘要 |
A ceramic honeycomb structure comprising a ceramic honeycomb body comprising axial grooves on its periphery and cell walls constituting a larger number of flow paths inside the grooves, and a peripheral wall layer covering the grooves, wherein there are stress release portions at least partially in the peripheral wall layer and/or between the peripheral wall layer and the grooves. The thermal expansion coefficient of the peripheral wall layer is preferably smaller than those of the cell walls in a radial direction. The peripheral wall layer is preferably formed on the ceramic honeycomb body formed by removing a peripheral wall from a ceramic green body, before or after firing the ceramic honeycomb body.
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申请公布号 |
US2007158879(A1) |
申请公布日期 |
2007.07.12 |
申请号 |
US20070689880 |
申请日期 |
2007.03.22 |
申请人 |
HITACHI METALS, LTD. |
发明人 |
SUWABE HIROHISA;OTSUBO YASUHIKO;KIMURA TOSHIAKI |
分类号 |
C04B33/32;B01D46/00;B01D46/24;B01D53/88;B01J35/04;C04B35/64;F01N3/28 |
主分类号 |
C04B33/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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