【摘 要】
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In the present work, CNTs/Mg composite powders with different deformation degree were prepared, which were used for melting experiment.The deformation mechanism of CNTs/Mg composite powder and the eff
【机 构】
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College of Materials Science and Engineering,Beijing University of Technology,100Pingleyuan,Chaoyang
【出 处】
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特种粉末冶金及复合材料制备/加工第一届学术会议
论文部分内容阅读
In the present work, CNTs/Mg composite powders with different deformation degree were prepared, which were used for melting experiment.The deformation mechanism of CNTs/Mg composite powder and the effect of deformation on meltability of CNTs/Mg composite powder were investigated.The results showed that the CNTs on the surface of Mg powder can play the role of protective layer due to the excellent thermal stability of CNTs, which kept Mg powder inside the protective layer throughout the whole casting process.The protective layer can hardly be broken by small deformation conducted to CNTs/Mg composite powder, but it could be broken effectively when large deformation was carried out, which would lead to the direct contact between Mg powder and molten metal.And the scattered CNTs were then blended into molten Mg everywhere during the melting process to enhance the metal structure.
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