YU Sirong, LUO Yanru, ZHANG Yingbo, et al. Damping properties of SiCP/ZL104 composite foams[J]. Acta Materiae Compositae Sinica, 2007, 24(1): 65-69.
Citation: YU Sirong, LUO Yanru, ZHANG Yingbo, et al. Damping properties of SiCP/ZL104 composite foams[J]. Acta Materiae Compositae Sinica, 2007, 24(1): 65-69.

Damping properties of SiCP/ZL104 composite foams

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  • Corresponding author: YU Sirong
  • Received Date: 2006-03-20
  • Rev Recd Date: 2006-06-12
  • Publish Date: 2007-02-15
  • The damping properties and damping mechanism were investigated for SiCP/ZL104 composite foams, fabricated by the method of direct melt foaming. The results show that under the conditions of the same pore-diameter, the loss factors of SiCP/ZL104 composite foams are non-linear rising with the increase of porosity at the ambient temperature, and the incremental changes lessen gradually. The damping properties of SiCP/ZL104 composite foams are better than those of foam aluminum, SiCP/ZL104 composites and ZL104 alloy. The loss factors of SiCP/ZL104 composite foams increase with the increase of the content of SiCP and the decrease of granularity of SiCP. Pores and high density dislocations in SiCP/ZL104 composite foams contribute to their damping properties.

     

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