I. S. El-Mahallawi, K. Eigenfield, F. Kouta, A. Hussein, T. S. Mahmoud, R. M. Ragaie, A. Y. Shash and W. Abou-Al-Hassan, “Synthesis and Characterization of New Cast A356/( Al₂O)p Metal Matrix Nanocomposites,” The Proceeding of the ASME 2nd Multifunctional Nanocomposites & Nanomaterials: International Conference & Exhibition, Cairo, 11-13 January 2008.

has been cited by the following article:

• TITLE: Dynamic Behaviour of Cast A356/Al2O3 Aluminum Metal Matrix Nanocomposites

  AUTHORS: E. Y. El-Kady, T. S. Mahmoud, A. A. El-Betar, M. Abdel-Aziz

  KEYWORDS: Metal Matrix Nanocomposites; Aluminum Alloys; Dynamic Properties; Damping Factor; Vibration;Frequency; Stiffness; Loss Factor; Storage Modulus

  JOURNAL NAME: Materials Sciences and Applications, Vol.3 No.11, November 29, 2012

  ABSTRACT: The present work includes the study of the dynamic properties of the nanocomposites specimens. The dynamic properties of A356/Al2O3 nanocomposites were investigated through different fabrication conditions. The A356/Al2O3 nanocomposites specimens were fabricated using a combination between the rheocasting and squeeze casting routes. The composites were reinforced with Al2O3 particulates of 60 and 200 nm and different volume fractions up to 5 vol.%. The dynamic properties of the A356/Al2O3 nanocomposites were investigated through measuring the dynamic properties of specimens. Free vibration method is used to measure frequency response (fn ), and damping factor (ξ). The viscoelastic properties such as loss factor η, storage modulus (E'), and loss modulus (E") were obtained. The results concluded that, the dynamic properties of nanocomposites were improved by increasing the volume fractions of nanoparticulates and decreasing the nanoparticulates size. The results indicated also that, the damping factor, and the related parameters (η, E' and E") was strongly affected by increasing both volume fraction and the particulates.