Methods of fabricating ceramic preforms with 2-D channels and structures produced thereby
US8986599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Oct 10, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24744
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods are provided for making ceramic preforms having two-dimensional interconnected channels therein. The methods include (i) positioning a sacrificial material having a selected profile within a bed of ceramic powder; (ii) compacting the bed of ceramic powder to form a compacted mass; (iii) heating the compacted mass to thermally transform the sacrificial materials into a fluid without cracking the compacted mass; and (iv) removing the fluid from the compacted mass, thereby leaving a two-dimensional network of interconnected channels having the selected profile of the sacrificial material within the compacted mass. Ceramic preforms are also provided which include a compacted mass of ceramic powder and two-dimensional interconnected channels therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.