| 发明名称 | Composite metal foam and methods of preparation thereof | ||
| 摘要 | The present invention is directed to composite metal foams comprising hollow metallic spheres and a solid metal matrix. The composite metal foams show high strength, particularly in comparison to previous metal foams, while maintaining a favorable strength to density ratio. The composite metal foams can be prepared by various techniques, such as powder metallurgy and casting. | ||
| 申请公布号 | US9208912(B2) | 申请公布日期 | 2015.12.08 |
| 申请号 | US201213365857 | 申请日期 | 2012.02.03 |
| 申请人 | Afsaneh Rabiei | 发明人 | Rabiei Afsaneh |
| 分类号 | G21F1/08;B22F3/11;B22F3/14;C22C21/00;C22C38/00;C22C38/40;B22D19/14;B22F7/00 | 主分类号 | G21F1/08 |
| 代理机构 | Womble Carlyle Sandridge & Rice, LLP | 代理人 | Womble Carlyle Sandridge & Rice, LLP |
| 主权项 | 1. A structure including a composite metal foam comprising a plurality of hollow metallic spheres with an average diameter of about 0.5 mm to about 20 mm, an average wall porosity of less than about 12%, and an average wall thickness of about 1% to about 15% of the average sphere diameter, the spheres being arranged with an interstitial space between the spheres, the interstitial space being filled with a solid metal matrix, wherein composite metal foam has a strength, evaluated as the plateau stress, of at least 35 MPa, a density of less than about 4 g/cm3, and an energy absorption of at least about 20 MJ/m3. | ||
| 地址 | Raleigh NC US | ||