About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Manufacturing and Processing of Advanced Ceramic Materials
|
Presentation Title |
Enhanced Thermal Conductivity Using Segregated Thermal Pathway in Magnesia Composites |
Author(s) |
Hyunae Cha, Young Kook Moon, Jong-Jin Choi, Byung-Dong Hahn, Cheol-Woo Ahn |
On-Site Speaker (Planned) |
Hyunae Cha |
Abstract Scope |
Recent research has focused on optimizing ceramic/polymer composite materials. Composites with segregated structures show better thermal conduction than those with randomly distributed fillers. This study introduces a method to produce a lightweight, self-supporting MgO framework with smooth-surfaced spheres and high thermal conductivity. These composites exhibited notably higher thermal conductivity (6.6 W/mK) at 54.7 vol% filler loading compared to randomly dispersed particles. Additionally, 3D-MgO/epoxy composites at 22.1 vol% displayed relatively low dielectric constant (3.78 at 1kHz), advantageous for electronic applications. MgO presents a promising alternative to Al2O3 fillers in high-power-density electronic devices, making 3D-MgO/epoxy composites promising next-generation thermally dissipating materials. |