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International Journal of Composite Materials and Matrices

Study of Attenuation Coefficient of Cu, Ag & Au

  1. A. K. Upadhyay

Abstract

The Absorption coefficient or Ultrasonic attenuation of Cu, Ag & Au at the range of 1 GHz using the calculated values of mason non-linearity parameter, ultrasonic Gruneisen parameter, thermal relaxation time and Debye average velocity along with ultrasonic wave velocity and elastic constant have been studied. This is useful to understanding the mechanism of interaction between acoustic wave and crystal lattice. The work is also beneficial to resolve various problem in ultrasonic studies. The result shows that the comparison of attenuation coefficient of metals viz Cu, Ag & Au along the different directions bring out some systematic features. It can be seen that the attenuation coefficient generally increases with increasing molecular weight and decreasing Debye temperature within the different group of solids.

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