Method for forming a cermet porous ceramic compact and heating the metal so that it melts and flows into the pores of the ceramic
US5196238A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1991 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Feb 25, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M15/433
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of infiltrating a porous ceramic compact with a molten metal to form a cermet is disclosed. A solid-phase metal is disposed on a surface of a porous ceramic compact. The surface of the porous ceramic compact is at an angle to the horizontal which is sufficient to allow molten metal formed from the solid-phase metal to rupture an oxide layer at least partially supporting the molten metal. The solid-phase metal is heated to a temperature sufficient to melt the solid-phase metal and to allow the molten metal formed to rupture the oxide layer. The molten metal flows through an opening in the metal oxide layer formed by the rupture and infiltrates the porous ceramic compact. The porous ceramic compact, containing the molten metal, is then cooled to a temperature whereby the molten metal solidifies, thereby forming a cermet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.