Perform for metal matrix composite material and cylinder block made of the same
US6383656B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 9, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Jun 9, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249927
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A preform for metal matrix composite material comprising: inorganic particles, small-diameter inorganic fibers, and large-diameter inorganic fibers. An average particle diameter of the inorganic particles is 1 to 50 &mgr;m. An average fiber diameter of the small-diameter inorganic fibers is 2 to 5 &mgr;m, and an average fiber length of the small-diameter inorganic fibers is 10 to 200 &mgr;m. An average fiber diameter of the large-diameter inorganic fibers is 4 to 20 &mgr;m, and an average fiber length of the large-diameter inorganic fibers is 10 to 200 &mgr;m. The small-diameter inorganic fibers catch and disperse the inorganic particles in a process of forming a formed body, and the large-diameter inorganic fibers create voids in cooperation with the small-diameter inorganic fibers in the process of forming the formed body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.