Aluminum-titanate-based ceramic honeycomb structure, its production method, and starting material powder for producing same
US9011757B2 · kind B2 · utility
4Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2013 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Aug 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24149
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ceramic honeycomb structure having a large number of flow paths partitioned by porous cell walls, the cell walls comprising at least main crystals of aluminum titanate, in which MgO and SiO2 are dissolved to form a solid solution, and glass phases, the glass phases containing 40-80% by mass of SiO2 and 1-20% by mass of MgO, the average size of the glass phases being 30 μm or less in a cross section of the cell walls, and the area ratio of the glass phases to the total area of the main crystals of aluminum titanate and the glass phases being 2-12% in a cross section of the cell walls, and its production method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.