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Effect of geometric structure parameters on the sound absorbing properties of a metal fiber material

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

The sound absorbing properties of the PFM(C) depend on such parameters of the material as porosity, fiber diameter, type of wire interlocking in the starting bonded semifinished product, and number of fibers in the yarn of the semifinished product. By suitable choice of fiber diameter, type of interlocking, and number of wires in a yarn, it is possible to attain an optimum porosity, which ensures a value of coefficient of sound absorption close to unity. Decreasing the fiber diameter shifts the optimum porosity toward higher values. Use of bonded semifinished products with a looser type of fiber interlocking leads to the maximum of sound absorption being observed at slightly higher porosities. When the active impedance component is greater than the wave resistance of air, the coefficient of sound absorption can be increased by increasing the number of fibers in the yarn of the gauze semifinished product.

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Literature cited

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Authors and Affiliations

  1. Institute of Materials Science, Academy of Sciences of the Ukrainian SSR, Ukraine

    V. A. Zorin, A. A. Ivanchuk, D. M. Karpinos, A. E. Rutkovskii & V. G. Smirnov

Authors
  1. V. A. Zorin
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  2. A. A. Ivanchuk
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  3. D. M. Karpinos
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  4. A. E. Rutkovskii
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  5. V. G. Smirnov
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Translated from Poroshkovaya Metallurgiya, No. 11(215), pp. 43–47, November, 1980.

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Zorin, V.A., Ivanchuk, A.A., Karpinos, D.M. et al. Effect of geometric structure parameters on the sound absorbing properties of a metal fiber material. Powder Metall Met Ceram 19, 765–768 (1980). https://doi.org/10.1007/BF00793464

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  • DOI: https://doi.org/10.1007/BF00793464

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