Process for producing layered ceramic product
US5591287A · kind A · utility
8Cited by
8References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 2, 1993 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Sep 2, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for producing a layered ceramic product which includes sintering layers of sinterable particulate ceramic material while in face-to-face contact. Before such contact, the surface of at least one of the layers is modified to provide a zone of weakness between the layers. This zone acts to deflect a crack propagating across the layers thereby increasing the work required to break the product. The product may also have improved fracture toughness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.