Influence of micro-structural properties on the acoustic performances of novel metallic foams

From National Research Council Canada

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Name affiliation
  1. National Research Council of Canada. NRC Industrial Materials Institute
FormatText, Article
Journal titleJournal of the Canadian Acoustical Association = Revue de l'Association canadienne d'acoustique
ISSN2291-1391
0711-6659
Volume32
Issue3
Pages24–25
Subjectacoustic properties; acoustic wave absorption; microstructure; optimization; pore size; porous materials; scanning electron microscopy; thermodynamics; acoustic materials; acoustic performances; macroscopic models; metallic foams
Abstract
The links between the microstructural properties of the metal foams and their acoustic properties were investigated. The influence of the microstructural properties on the acoustic performances was also investigated. It was shown that a direct link exists between the thermal characteristic length of the Johnson-Champoux-Allard model and the average pore diameter in the studied open-cell metallic foams. The results show that the smart design of acoustical materials can be deemed attainable with these new materials.
Publication date
PublisherCanadian Acoustical Association
LanguageEnglish
Peer reviewedYes
NPARC number23003011
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Record created2018-04-12
Record modified2020-05-30
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