Damping behaviors of magnesium matrix composites reinforced with Cu-coated and uncoated SiC particulates
作者： Jinhai Gu , Xiaonong Zhang , Yongfu Qiu , Mingyuan Gu
DOI: 10.1016/J.COMPSCITECH.2005.02.014
关键词: Composite material 、 Damping capacity 、 Powder metallurgy 、 Magnesium matrix composite 、 Composite number 、 Extrusion 、 Materials science 、 Particulates 、 Relaxation (NMR) 、 Dislocation 、 General Engineering 、 Ceramics and Composites
摘要: Abstract Magnesium matrix composites reinforced with Cu-coated and uncoated SiC particulates were fabricated by a powder metallurgy hot extrusion process, their damping behaviors studied in this paper. The results show that, pure Mg excels the capacity at low temperature; when temperature increases to about 75 °C, of composite will exceed that Mg; further increase 250 °C also cause superior for coated Mg. Especially note one relaxation peak appears spectra composites, besides, is less pronounced than one, which related dislocation mechanism.
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