Enhancement of the sound absorption of closed-cell mineral foams by perforations: Manufacturing process and model-supported adaptation

Thin low-frequency acoustic absorbers that are economical to produce using a large-scale manufacturing process are scarce, and their efficiency is often limited to a narrow frequency range. In this paper, perforated gypsum foams are shown to achieve high absorption levels for layers thinner than 1/1...

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Bibliographic Details
Main Authors: Bart Van Damme, Théo Cavalieri, Cong-Truc Nguyen, Camille Perrot
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Materials & Design
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127524009158
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