Low pressure laminated ceramic devices and method
US6648999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Apr 3, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/62
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An intermediate low-pressure laminated ceramic device is formed from a plurality of layers of unfired ceramic material each including ceramic particles in an organic binder. A polymer interfacial layer having a glass transition temperature such that it flows at a temperature below a temperature required for the unfired ceramic layers to substantially deform, is deposited on one surface of each of the unfired ceramic layers. The unfired ceramic layers are stacked with an interfacial layer positioned between adjacent unfired ceramic layers in the stack. The stack is heated to a temperature greater than the glass transition temperature of the interfacial layers and a pressure is applied to the heated stack below approximately 1200 psi to fixedly bond the plurality of layers in the stack together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.