Phononic crystals of poroelastic spheres
An extension of the layer-multiple-scattering method to phononic crystals of poroelastic spheres immersed in a fluid medium is developed. The applicability of the method is demonstrated on specific examples of close-packed fcc crystals of submerged water-saturated meso- and macroporous silica micros...
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| Veröffentlicht in: | Physical review. B 2016-11, Vol.94 (17), Article 174306 |
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| container_title | Physical review. B |
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| creator | Alevizaki, A. Sainidou, R. Rembert, P. Morvan, B. Stefanou, N. |
| description | An extension of the layer-multiple-scattering method to phononic crystals of poroelastic spheres immersed in a fluid medium is developed. The applicability of the method is demonstrated on specific examples of close-packed fcc crystals of submerged water-saturated meso- and macroporous silica microspheres. It is shown that, by varying the pore size and/or the porosity, the transmission, reflection, and absorption spectra of finite slabs of these crystals are significantly altered. Strong absorption, driven by the slow waves in the poroelastic material and enhanced by multiple scattering, leads to negligible transmittance over an extended frequency range, which might be useful for practical applications in broadband acoustic shielding. The results are analyzed by reference to relevant phononic dispersion diagrams in the viscous and inertial coupling limits, and a consistent interpretation of the underlying physics is provided. |
| doi_str_mv | 10.1103/PhysRevB.94.174306 |
| format | Article |
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The applicability of the method is demonstrated on specific examples of close-packed fcc crystals of submerged water-saturated meso- and macroporous silica microspheres. It is shown that, by varying the pore size and/or the porosity, the transmission, reflection, and absorption spectra of finite slabs of these crystals are significantly altered. Strong absorption, driven by the slow waves in the poroelastic material and enhanced by multiple scattering, leads to negligible transmittance over an extended frequency range, which might be useful for practical applications in broadband acoustic shielding. 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The results are analyzed by reference to relevant phononic dispersion diagrams in the viscous and inertial coupling limits, and a consistent interpretation of the underlying physics is provided.</description><subject>Absorption spectra</subject><subject>Broadband</subject><subject>Crystals</subject><subject>Microspheres</subject><subject>Physics</subject><subject>Pore size</subject><subject>Porosity</subject><subject>Scattering</subject><subject>Shielding</subject><subject>Silicon dioxide</subject><issn>2469-9950</issn><issn>1098-0121</issn><issn>2469-9969</issn><issn>1550-235X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNo9kNFKwzAUhoMoOOZewKuCN3rRepI0ac_lHOqEgUP0OiRtQjfmUpNusLe3pbqrc_jPx8_hI-SWQkYp8Md1c4of9viUYZ7RIucgL8iE5RJTRImX513ANZnFuAUAKgELwAm5Xzd-7_ebKqnCKXZ6FxPvktYHb3c6dn0e28YGG2_IleuvdvY3p-Tr5flzsUxX769vi_kqrbjgXSqF1KZGLRBKnVNBbc2cdJU0ZSkE5YC1ZgaZY0UfIXWai8rUZWEMGjDAp-Rh7G30TrVh863DSXm9Ucv5Sg0ZME55ifxIe_ZuZNvgfw42dmrrD2Hfv6cYZVKIUuRDIxupKvgYg3XnWgpqEKj-BSrM1SiQ_wK3SGNv</recordid><startdate>20161101</startdate><enddate>20161101</enddate><creator>Alevizaki, A.</creator><creator>Sainidou, R.</creator><creator>Rembert, P.</creator><creator>Morvan, B.</creator><creator>Stefanou, N.</creator><general>American Physical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-0490-7246</orcidid><orcidid>https://orcid.org/0000-0003-1264-472X</orcidid><orcidid>https://orcid.org/0000-0001-5871-0724</orcidid></search><sort><creationdate>20161101</creationdate><title>Phononic crystals of poroelastic spheres</title><author>Alevizaki, A. ; Sainidou, R. ; Rembert, P. ; Morvan, B. ; Stefanou, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-656abd9a5908a4151ed2f6fc6b88551309da2b92f276b891fa35cbd87bb9b0b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Absorption spectra</topic><topic>Broadband</topic><topic>Crystals</topic><topic>Microspheres</topic><topic>Physics</topic><topic>Pore size</topic><topic>Porosity</topic><topic>Scattering</topic><topic>Shielding</topic><topic>Silicon dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alevizaki, A.</creatorcontrib><creatorcontrib>Sainidou, R.</creatorcontrib><creatorcontrib>Rembert, P.</creatorcontrib><creatorcontrib>Morvan, B.</creatorcontrib><creatorcontrib>Stefanou, N.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Physical review. 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| ispartof | Physical review. B, 2016-11, Vol.94 (17), Article 174306 |
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| language | eng |
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| source | American Physical Society Journals |
| subjects | Absorption spectra Broadband Crystals Microspheres Physics Pore size Porosity Scattering Shielding Silicon dioxide |
| title | Phononic crystals of poroelastic spheres |
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