Lightweight acoustic hyperbolic paraboloid diaphragms with graphene through self-assembly nanoarchitectonics
Year: 2024
Type: article
Abstract: The paper presents a study on the fabrication of a lightweight acoustic hyperbolic paraboloid (HyPar) diaphragm using self-assembly nanoarchitectonics. The diaphragm is composed of a polyacrylonitrile (PAN) network combined with graphene oxide (GO) nanolayers. Spray coating is employed as a fabrication method, providing a simple and cost-effective approach to create large-scale curved diaphragms. The results demonstrate that the PAN/GO diaphragm exhibits acoustic performance comparable to a commercially available banana pulp diaphragm while significantly reducing weight and thickness. Notably, the graphene-based diaphragm is 15 times thinner and 8 times lighter than the commercial banana pulp diaphragm. This thinner and lighter nature of the graphene-based diaphragm offers advantages in applications where weight and size constraints are critical, such as in portable audio devices or acoustic sensors.
Authors: Mo Lin, Maxim Trubianov, Kou Yang, Siyu Chen, Qian Wang, Jiqiang Wu, Xiaojian Liao, Andreas Greiner, Kostya S. Novoselov, Daria V. Andreeva
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,134
OpenAlex ID: W4404520034