Искровое плазменное спекание ламинированных композитов из фольг Ta и прекерамических бумаг на основе MAX-фазы Ti3Al(Si)C2

Abstract

Ta/Ti3Al(Si)C2-TiC layered composites were fabricated from stacked preceramic papers filled with MAX-phase powder (Ti3Al(Si)C2) Ta and metal foils. The composites were fabricated by spark plasma sintering (SPS) at a temperature of 1250 °C and a pressure of 50 MPa for 5 min. The microstructure and phase composition were analyzed using scanning electron microscopy and X-ray diffraction, respectively. The structure of the composites is represented by metal layers of Ta and ceramic layers separated by reaction layers. It was found that the reaction layers are formed during SPS due to the mutual diffusion of Ta and Al, Si from the MAX-phase