Method for manufacturing porous ceramic bodies with gradient of porosity
US8951462B2 · kind B2 · utility
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Key dates
| Filing date | Jun 19, 2012 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Apr 26, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2043/325
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Provided is a method of manufacturing porous ceramic bodies with gradient of porosity, in which a gradient that is continuous to a pore size and porosity is precisely controlled in a simple way. The method includes the steps of: obtaining molded bodies by pressurizing and molding a mixture of powder obtained by mixing ceramic powder and polymer powder at a weight ratio of 1:1 to 100:1; and obtaining sintered bodies with gradient of porosity by sintering the molded bodies while applying a gradient pressure to the molded bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.