Increased density particle molding
US7419527B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2003 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | May 13, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Novel powders or particles are formed by associating them with relatively small proportions of hydrolysable liquid material. The resulting particle/liquid mass is placed in a mold and sintered under conditions of heat and pressure that enables at least some of the hydrolysable liquid to react within the sintered mass. The sintered mass displays a controllable range of properties such as increased density, increased tensile strength, and improved natural polish finish. The hydrolysable liquid may partially hydrolyze and/or react with the powders and particles, but the liquid is not completely (not 100%) reduced to an inorganic oxide prior to introduction to the mold and performance of the sintering process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.