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Study on Ultrasonic Cavitation Based Solidification Processing and Nanoparticle Feeding for High Volume Fabrication of Aluminum Matrix Nanocomposites

[+] Author Affiliations
Yong Yang, Xiaochun Li

University of Wisconsin at Madison

Paper No. IMECE2005-81166, pp. 975-979; 5 pages
doi:10.1115/IMECE2005-81166
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Manufacturing Engineering and Materials Handling, Parts A and B
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Manufacturing Engineering Division and Materials Handling Division
  • ISBN: 0-7918-4223-1 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

Lightweight metal matrix nano-composites (MMNCs) (metal matrix with nano-sized ceramic particles) can be of significance for automobile, aerospace and numerous other applications. It would be advantageous to produce low-cost as-cast bulk lightweight components of aluminum based MMNCs. However, it is extremely difficult to disperse nano-sized ceramic particles uniformly in molten aluminum. In this paper, a high power ultrasonic probe is used to disperse nano-size SiC particles in aluminum alloy A356. Experiment results show that the ultrasonic cavitation based dispersion of naoparticles in molten aluminum alloy is effective. The uniform nano particle dispersion resulted in significantly improved mechanical properties. Various nanopartilce feeding techniques were investigated and experimental results are presented.

Copyright © 2005 by ASME

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