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The use of acoustic axes in deciding between the Voigt and Laval-Raman theories of the elastic properties of crystals

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Czechoslovak Journal of Physics B Aims and scope

Abstract

A method is derived for finding the crystal directions that are acoustic axes, independently of the values of the elastic constants and of the assumption of the validity of Voigt's theory of the elastic properties of crystals. If, on the other hand, the Laval-Raman theory is satisfactory for the given crystal, the found directions lose the properties of acoustic axes. Measurement of the phase velocity of elastic waves in the found directions makes it possible to decide for each crystal whether these directions are really acoustic axes and thus to determine which of the two theories is valid.

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References

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Author notes

  1. K. Hruška

    Present address: Technical College of Mechanical and Textile Engineering, Hálkova 6, Liberec, Czechoslovakia

Authors and Affiliations

  1. Department of Physics, University of Khartoum, Sudan

    K. Hruška

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  1. K. Hruška
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Additional information

In conclusion the author would like to express his sincere thanks to the head of the Czechoslovak Commercial Department in Khartoum, B. Sychra, for kindly making it possible to prepare the manuscript for publication.

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Hruška, K. The use of acoustic axes in deciding between the Voigt and Laval-Raman theories of the elastic properties of crystals. Czech J Phys 16, 516–519 (1966). https://doi.org/10.1007/BF01689818

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  • DOI: https://doi.org/10.1007/BF01689818

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