Version 1
: Received: 14 September 2023 / Approved: 15 September 2023 / Online: 18 September 2023 (13:12:02 CEST)
How to cite:
Hwang, S.; Liu, H.; Liao, W.; Cheng, Y.K. Fabrication and Performance of Diaphragm Headphones Based on Graphene and Graphene Nanocomposites. Preprints2023, 2023091098. https://doi.org/10.20944/preprints202309.1098.v1
Hwang, S.; Liu, H.; Liao, W.; Cheng, Y.K. Fabrication and Performance of Diaphragm Headphones Based on Graphene and Graphene Nanocomposites. Preprints 2023, 2023091098. https://doi.org/10.20944/preprints202309.1098.v1
Hwang, S.; Liu, H.; Liao, W.; Cheng, Y.K. Fabrication and Performance of Diaphragm Headphones Based on Graphene and Graphene Nanocomposites. Preprints2023, 2023091098. https://doi.org/10.20944/preprints202309.1098.v1
APA Style
Hwang, S., Liu, H., Liao, W., & Cheng, Y.K. (2023). Fabrication and Performance of Diaphragm Headphones Based on Graphene and Graphene Nanocomposites. Preprints. https://doi.org/10.20944/preprints202309.1098.v1
Chicago/Turabian Style
Hwang, S., Wei-Chong Liao and Yi Kai Cheng. 2023 "Fabrication and Performance of Diaphragm Headphones Based on Graphene and Graphene Nanocomposites" Preprints. https://doi.org/10.20944/preprints202309.1098.v1
Abstract
The goal of this paper is to fabricate innovative diaphragm headphones using graphene oxide paper (GOP) and GOP/epoxy nanocomposites (GOPC). Initially, graphene oxide suspension is fabricated, and the vacuum filtration method is adopted to make GOP. Then vacuum bag molding is used to fabricate GOPC from GOP. Hot pressing and associated molds are adopted to fabricate line-indented (GOPC-L) or curve-indented patterns (GOPC-C) on the GOPC. The performance of one kind of GOP and three kinds of GOPC diaphragm headphones is analyzed based on their sound pressure level (SPL) curves achieved by the Soundcheck measurement system. There are four important processing parameters that will influence the performance of the diaphragm, including material type GOP versus GOPC, indented pattern type, sonication time on suspension, and graphene weight fraction in suspension. Compliances of various diaphragms are measured by the Klippel LPM laser measurement system. The results indicate that effects of sonication time and graphene weight fraction on SPL of GOP and GOPC headphones are in reverse, and this is associated with their difference on compliance (modulus), mass, damping ratio, and microstructure uniformity. Either GOPC-L or GOPC-C seems to improve the microstructure of the GOPC, and leads to better SPL performance. The correlation between the previous four factors and SPLs of four kinds of diaphragm headphones is proposed by using scanning electron microscope (SEM) to examine the microstructure of these diaphragms.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
