Shon, In-Jin Yoon, Jin-Kook Hong, Kyung-Tae 2024-01-19T23:33:41Z 2024-01-19T23:33:41Z 2022-01-25 2018-01 1598-9623 https://pubs.kist.re.kr/handle/201004/121835 Despite of many attractive properties of TiO2, the drawback of TiO2 ceramic is low fracture toughness for widely industrial application. The method to improve the fracture toughness and hardness has been reported by addition of reinforcing phase to fabricate a nanostructured composite. In this regard, graphene has been evaluated as an ideal second phase in ceramics. Nearly full density of nanostructured TiO2-graphene composite was achieved within one min using pulsed current activated sintering. The effect of graphene on microstructure, fracture toughness and hardness of TiO2-graphene composite was evaluated using Vickers hardness tester and field emission scanning electron microscopy. The grain size of TiO2 in the TiO2-x vol% (x = 0, 1, 3, and 5) graphene composite was greatly reduced with increase in addition of graphene. Both hardness and fracture toughness of TiO2-graphene composites simultaneously increased in the addition of graphene. English KOREAN INST METALS MATERIALS Enhanced properties of nanostructured TiO2-graphene composites by rapid sintering Article 10.1007/s12540-017-7135-5 1 METALS AND MATERIALS INTERNATIONAL, v.24, no.1, pp.130 - 135 METALS AND MATERIALS INTERNATIONAL 24 1 130 135 N scie scopus kci ART002304356 000419534500016 2-s2.0-85031724124 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article MECHANICAL-PROPERTIES THIN-FILMS TIO2 CONSOLIDATION TEMPERATURE SYSTEM nanomaterials sintering fracture toughness composite hardness