Al and Zn Foams Blown by an Intrinsic Gas Source
Al and Zn Foams Blown by an Intrinsic Gas Source
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由固有气源吹制的铝和锌泡沫
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
J. Banhart
中科院分区：
文献类型：
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作者：
M. Mukherjee;F. García‐Moreno;C. Jimenez;J. Banhart
开发了一种生产具有均匀分布的小泡孔的铝基和锌基泡沫的方法。使用含氢的预合金AlMg50粉末作为常用发泡剂TiH2的替代品。AlMg50粉末在整个样品中均匀地释放气体，导致大量胞形核并导致同时生长，最终导致均匀的胞结构。通过原位X射线透视研究了这些泡沫的膨胀行为。然后通过光学显微镜和X射线断层扫描对固化泡沫的宏观结构进行了分析，并证明其非常均匀。泡沫的高强度通过单轴压缩测试证明。
A method was developed to produce Al‐ and Zn‐based foams with a uniform distribution of small cells. Pre‐alloyed AlMg50 powder containing hydrogen was used as a replacement for the usual blowing agent TiH2. AlMg50 powder released gas uniformly in the entire sample, caused the nucleation of a large number of cells and led to simultaneous growth that finally resulted in a uniform cell structure. The expansion behavior of these foams was studied by means of in situ X‐ray radioscopy. The macrostructure of the solidified foams was then analyzed through optical microscopy and X‐ray tomography and proved to be very uniform. The high strength of the foams was demonstrated by uni‐axial compression tests.