期刊
COMPOSITES PART B-ENGINEERING
卷 90, 期 -, 页码 399-405出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2016.01.008
关键词
Metal-matrix composites (MMCs); Particle-reinforcement; Mechanical properties; Sintering; Damping capacity
资金
- FCT (Fundacao para a Ciencia e a Tecnologia) [EXCL/EMS-TEC/0460/2012]
- Fundação para a Ciência e a Tecnologia [EXCL/EMS-TEC/0460/2012] Funding Source: FCT
The effect of SiC particle size on the resultant damping capacity and dynamic modulus of aluminum metal matrix composites (AMMCs) was studied. Damping capacity, as well as dynamic Young's modulus, was measured at 1, 10 and 20 Hz, at room temperature. Image analysis and chemical composition were performed in order to investigate the AlSi SiC interfacial reaction. The damping capacity of AlSi-SiCp composites, with three different particle size, was compared to AlSi unreinforced. The damping mechanisms involved were discussed in light of the results obtained from damping capacity. The results show that damping capacity and dynamic modulus of AlSi can be improved through the addition of SiC particles. Further, through a selection of specific sizes of SiC particles, it is possible to tailor the final composite stiffness and damping capacity. (C) 2016 Elsevier Ltd. All rights reserved.
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