Research in aluminum matrix composites for improvement in damping capacity

Takuya Sakaguchi, Shin Takeuchi, Yasuo Kogo, Naohiro Igata, Katsuhiro Nishiyama

Research output: Contribution to conferencePaper

1 Citation (Scopus)


We have tried to improve damping capacity of an aluminum alloy by means of dispersing ceramic particles (low damping SiC and high damping NdNbO 4 ) of different sizes and volume fractions in the aluminum alloy by powder metallurgy. It is shown that the damping capacity is increased in every case accompanying an increase of Young's modulus. It is also shown that the intrinsic damping capacity of dispersed particles does not play a role in improving the damping capacity. The increase of the damping capacity seems to be attributed to dislocations breakaway, interaction of fine particles and dislocations, and relaxation of interface between ceramic particles and aluminum matrix.

Original languageEnglish
Publication statusPublished - 1 Dec 2005
Event2005 SAE World Congress - Detroit, MI, United States
Duration: 11 Apr 200514 Apr 2005


Conference2005 SAE World Congress
CountryUnited States
CityDetroit, MI


Cite this

Sakaguchi, T., Takeuchi, S., Kogo, Y., Igata, N., & Nishiyama, K. (2005). Research in aluminum matrix composites for improvement in damping capacity. Paper presented at 2005 SAE World Congress, Detroit, MI, United States.