Acoustic Anisotropy of Metalloceramic (Sintered Metal Powder) Molybdenum Moldings

  • O. S. Kobyakov
  • E. E. Petushkov


When studying the velocity of longitudinal ultrasonic vibrations C l in metalloceramic (sintered-metal) molybdenum moldings, we observed anomalous differences between the velocities of propagation in different directions (axial C. and radial C). This difference in velocities may be regarded as characterizing an elastic acoustic anisotropy, which certain authors [1–3] associate with the molecular structure of the material, and, for certain rocks and coals in particular, with the existence of a layered structure. Acoustic anisotropy is usually expressed by the ratio of the velocities along the layers (C) and across the layers (C):
$$A = \frac{{C_\parallel }}{{C_ \bot }}$$


Longitudinal Wave Welding Current Anisotropy Coefficient Welding Operation Velocity Circle 
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  1. 1.
    N. I. Brazhnikov, Ultrasonic Methods, Izd. Energiya, Moscow (1965), p. 29.Google Scholar
  2. 2.
    E. G. Martynov and A. K. Matveev, Use of Ultrasonics in the Study of Materials, No. 10, Moscow (1960), p. 135.Google Scholar
  3. 3.
    M. P. Volorovich and E. Bayuk, Use of Ultrasonics in the Study of Materials, Vol. 11, Moscow (1960), p. 147.Google Scholar
  4. 4.
    B. Carlin, Ultrasound [Russian translation], IL, Moscow (1950), p. 259.Google Scholar

Copyright information

© Consultants Bureau, New York 1971

Authors and Affiliations

  • O. S. Kobyakov
  • E. E. Petushkov

There are no affiliations available

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