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    • 45. 发明申请
    • A METALLIC FOAM MATERIAL
    • 金属泡沫材料
    • WO2013102558A3
    • 2013-10-17
    • PCT/EP2012075975
    • 2012-12-18
    • ROLLS ROYCE PLC
    • CARE IAN
    • B29C43/18B29C43/28C22C47/06C22C47/08C22C49/14C25D1/00C25D5/54C25D7/04
    • C25D1/08B22F3/1112B22F2998/10B22F2999/00C22C47/025C22C47/04C22C47/068C22C49/14C25D5/54C25D7/04Y10T428/249921B22F1/025C25D7/00
    • The invention provides a metallic foam material with better mechanical properties than known foamed materials, and a method of making such a material. Although known foamed metals are light in weight, and sandwich structures formed of such materials can be formed into structural components, the tendency for the structure to crush and fracture under compressive loading, with consequent crack propagation, limits their use in applications in which the integrity of the component is important. The invention addresses this problem by providing a fibre-reinforced foam that combines the tensile strength of a high strength fibre such as carbon fibres with the impact resistance (through crushing and deformation) of metallic foam. The metal foam imparts a greater strength to the carbon-fibre-reinforced plastics (CFRP) part of the structure than it would have by itself. Under tensile loads, the fibre reinforcement gives the metallic foam enhanced strength and low creep which it would not have on its own.
    • 本发明提供了具有比已知泡沫材料更好的机械性能的金属泡沫材料,以及制造这种材料的方法。 尽管已知的泡沫金属重量轻,并且由这种材料形成的夹层结构可以形成为结构部件,但是结构在压缩载荷下压溃和破裂的倾向以及随之而来的裂纹扩展限制了其在完整性 的组件很重要。 本发明通过提供一种纤维增强泡沫来解决该问题,该泡沫组合了诸如碳纤维的高强度纤维的拉伸强度与金属泡沫的抗冲击性(通过压碎和变形)。 金属泡沫给结构的碳纤维增强塑料(CFRP)部分赋予比它本身更大的强度。 在拉伸载荷下,纤维增强使金属泡沫具有增强的强度和低蠕变,而它本身不具有。