| 1. | Kreher W.♦, Ranachowski J., Rejmund F., Ultrasonic waves in porous ceramics with non-spherical holes, Ultrasonics, ISSN: 0041-624X, DOI: 10.1016/0041-624X(77)90068-3, Vol.15, No.2, pp.70-74, 1977 Streszczenie: Formulae describing the effective elastic moduli of a porous ceramic medium are derived using Eshelby's solution and Maxwell's approximation. The ceramic medium is considered as an infinite matrix, which has uniform elastic properties and encloses non-spherical pores. A numerical evaluation of the velocity of an ultrasonic wave in the ceramic, as function of the porosity and pore shape, is presented. The theoretical results were combined with those obtained experimentally for different firing temperatures of the ceramic. Afiliacje autorów: | Kreher W. | - | Technische Universität Dresden (DE) | | Ranachowski J. | - | IPPT PAN | | Rejmund F. | - | IPPT PAN |
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