Title:
CERAMIC HONEYCOMB STRUCTURAL BODY AND MANUFACTURING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2023/048194
Kind Code:
A1
Abstract:
A ceramic honeycomb structural body characterized by being provided with a plurality of honeycomb segments which include a plurality of flow passages that are divided by separating walls of a porous material and that penetrate through the honeycomb segments in an axial direction, and in which plugging portions are disposed in end portions of the flow passages, and a bonding material layer for bonding outer walls of the plurality of honeycomb segments together, wherein: the bonding material layer includes silicon carbide particles serving as a rib material, and a bonding phase for bonding the silicon carbide particles; the bonding phase includes at least a cordierite phase and a spinel phase; a molar ratio M1 [=cordierite phase/(cordierite phase+spinel phase)] of the cordierite phase is at least equal to 0.50 and less than 1.0; and the (cordierite phase+spinel phase) content in the bonding phase is at least 50% by mass.
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Inventors:
OKAZAKI SYUNJI (JP)
SHIMIZU KENICHIRO (JP)
ISHIZAWA TOSHITAKA (JP)
SHIMIZU KENICHIRO (JP)
ISHIZAWA TOSHITAKA (JP)
Application Number:
PCT/JP2022/035221
Publication Date:
March 30, 2023
Filing Date:
September 21, 2022
Export Citation:
Assignee:
PROTERIAL LTD (JP)
International Classes:
B01D39/20; B01D46/00; C04B35/577; C04B37/00; F01N3/022
Domestic Patent References:
| WO2006098191A1 | 2006-09-21 | |||
| WO2013125713A1 | 2013-08-29 |
Foreign References:
| JP2015187044A | 2015-10-29 | |||
| JPS6126572A | 1986-02-05 | |||
| JPS60141667A | 1985-07-26 | |||
| JPH0828246A | 1996-01-30 |
Attorney, Agent or Firm:
TAKAISHI Kitsuma (JP)
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