Methods for producing novel ceramic composites
US6004500A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1998 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | May 19, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y80/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for making ceramic composites includes the steps of: a) forming a polymer composition into a three-dimensional mold; b) filling said three-dimensional mold with one or more ceramic containing compositions; c) heating said filled mold to dry and sinter the ceramic; d) removing at least a portion of said three-dimensional mold thereby forming voids; and e) filling the voids with a second composition which has a piezoelectric coefficient which is substantially different from the piezoelectric coefficient of said ceramic structure. Steps a through e yield a controlled, non-random piezoelectric ceramic composite having 2-3, 3-2 or 3--3 connectivity with respect to the sintered ceramic and the second composition throughout the composite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.