Method for reducing metal content of self-supporting composite bodies and articles formed thereby
US5232040A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1991 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Nov 15, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B41/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates generally to a novel method for removing metal from a formed self-supporting body. A self-supporting body is made by reactively infiltrating a molten parent metal into a bed or mass containing a boron source material and a carbon source material (e.g., boron carbide) and/or a boron source material and a nitrogen source material (e.g., boron nitride) and, optionally, one or more inert fillers. Once the self-supporting body is formed, it is then placed, at least partially, into contact with another material which causes metallic constituent contained in the self-supporting body to be at least partially removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.