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Fabrication of grape-like structures with micro capsule covering metal powder, and application to novel porous metal
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Description
We used a new method to fabricate salami-type porous metal from glass microcapsules and liquid metal. Each pore of its salami-like structure behaves as a micro-bell. This metal, which is more than 20% lighter than bulk material, also shows a unique characteristic: high-frequency oscillation is greatly attenuated when propagated in its medium. This method offers great potential for size, shape, and conformation control, with changed attenuation characteristics of its salami-like pore structure achieved merely by changing the mixing technique. This study was conducted to measure compressive deformation behavior and attenuation characteristic of salami-type porous SnSbCu. To begin with, we fabricated two salami-type porous metals using 16um or 60um diameter microcapsule, which have different salami structures in its body. Next, compressive loading test was conducted for the metals. Then, the attenuation characteristic was investigated using laser ultrasonic measurement. Thereby, compressive deformation behavior was same between fabricated two salami-type porous metals. In contrast, the attenuation characteristic was different at low frequency range between them.
Journal
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- SPIE Proceedings
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SPIE Proceedings 8342 834222-, 2012-04-26
SPIE
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Details 詳細情報について
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- CRID
- 1872835443098694912
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- ISSN
- 0277786X
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- Data Source
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- OpenAIRE