Сравнительный анализ структурно-фазового состояния и механических свойств композитов Nb/Ti₃Al(Si)C₂-TiC-Al₂O₃, полученных искровым плазменным спеканием и горячим прессованием

Abstract

For the first time, hot pressed laminated Nb/Ti3Al(Si)C2-TiC-Al2O3 composites were fabricated from Nb foils and preceramic papers with Ti3Al(Si)C2 powder filler. A comparative analysis of hot pressed and spark plasma sintered composites was performed. Phase composition, microstructure, hardness and bending strength were analyzed. The hot pressed composites showed a degradation in mechanical properties compared to the spark plasma sintered composites. This is associated with the formation of pores in the ceramic layers and a greater decomposition of Ti3Al(Si)C2 to TiC