Hwang, Jinuk Tak, Woo-Seong Mun, So Youn Nam, Sangyong Moon, Sook Young Kim, Woo Sik 2024-01-19T17:02:29Z 2024-01-19T17:02:29Z 2021-09-02 2020-08 1996-1944 https://pubs.kist.re.kr/handle/201004/118343 Graphene reinforced aluminum matrix composites (GRAMCs) with improved thermal conductivity were prepared via a pH-controlled self-assembly process that involved adjusting the concentration of dispersed graphene oxide (GO) solutions. Uniform dispersion was achieved using GO coating on the aluminum (Al) surfaces. Graphene encapsulated Al powders (Al/GO) were sintered through spark plasma sintering (SPS) to prepare bulk composites, these were then analyzed to determine the thermal and mechanical properties. The density of the Al/GO composites was determined to be 99% or more compared to the theoretical density of pure Al. The Vicker's hardness and thermal conductivity increased by about 47% and 15% more than the pristine Al bulks. These processes can improve properties of the thermal interface between GO and Al, enabling uniform coating without a crosslinking agent. An Al/GO composite, fabricated through the pH-controlled self-assembly process, should be useful for various applications requiring to high thermal conductivity. English MDPI ALUMINUM-MATRIX COMPOSITES MECHANICAL-PROPERTIES CARBON NANOTUBES OXIDE Graphene Encapsulated Al Particles for Improvement of Thermal Conductivity in Composites Article 10.3390/ma13163602 1 MATERIALS, v.13, no.16 MATERIALS 13 16 scie scopus 000566414800001 2-s2.0-85090217266 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Physics, Applied Physics, Condensed Matter Chemistry Materials Science Metallurgy & Metallurgical Engineering Physics Article ALUMINUM-MATRIX COMPOSITES MECHANICAL-PROPERTIES CARBON NANOTUBES OXIDE graphene reinforced aluminum matrix composites self-assembly coating thermal conductivity uniform dispersion