MATEC Web of Conferences(WoS), 2018, Volume 224, Article Number 01055, Page 7
Abstract. Spark plasma sintering (SPS) is an extremely fast solidification technique for compounds that are difficult to sinter within the material group metals, ceramics or composites. SPS uses a uniaxial pressure and a very rapid heating cycle to consolidate these materials. This direct way of heating allows the application of very high heating and cooling rates, enhancing densification over grain growth promoting diffusion mechanisms allowing maintaining the intrinsic properties of nanopowders in their fully dense products. The ZrO2-TiN cermets prepared by SPS processing achieves the enhanced mechanical properties with the hardness of 15.1 GPa and the fracture toughness of 9.1 MPa∙m1/2 in comparison to standard reference ZrO2-TiN material.
SEM images of polished and thermally etched sections of SPS sintered (1300°C (a), 1400°C (b) and 1500°C (c)) ZrO2 composites.
Исполнители: Y. Pristinskiy, W. Solis, A. Smirnov
Дата публикации: 30-10-2018