| 摘要 |
A method of producing a honeycomb structure (100) includes a step of forming a ceramic block (140) by bonding a plurality of honeycomb units (130) that have a plurality of cells (22) partitioned by cell walls (23) using a bonding layer (110) or, a step of forming a ceramic block (140) by a single honeycomb unit (130) that has a plurality of cells (22) partitioned by cell walls (23), and a step of providing a coating layer (120) on an outer peripheral portion of the ceramic block (140), and is characterized by a step of providing a paste of the bonding material including particles of a foaming material having a diameter in a range of 1 µm to 50 µm on each bonding surface of each honeycomb unit (130), and/or, a step of providing a paste of a coating material including particles of a foaming material having a diameter in a range of 1 µm to 50 µm on the outer peripheral portion of the ceramic block (140), a step of blowing up the foaming material, and a step of evaporating the foaming material and forming bubble marks having a diameter in a range of 100 µm to 300 µm.
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