materials

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• Soft porous beads vs micro-balloons under pressure

  Coating materials for naval anechoism must absorb sound while withstanding hydrostatic pressure. Soft porous beads attenuate more than micro-balloons — until a few bars irreversibly collapse their open porosity.

  post 21 Apr 2023 acousticsmaterialsmetamaterialsunderwater-acoustics
  2 min

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