Frangible, ceramic-metal composite objects and methods of making the same
US10323919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2011 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Apr 3, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B30/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In making frangible objects, including lead-free bullets and other projectiles, powdered metal primary and powdered ceramic secondary phases are mixed and densified at an elevated temperature such that the ceramic phase forms a brittle network. Different combinations of metal and ceramic phases may be used to achieve desired chemical and physical properties. Any appropriate mixing, forming, and/or thermal processing methods and equipment may be used. Degrees of frangibility, strength, and toughness can be adjusted to suit a given application by precursor selection, degree of mixing, relative amounts of metal and ceramic phases, forming method, and thermal and mechanical processing parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.