In this work, Y3Al5O12/magnesium aluminate spinel composites were successfully in situ synthesized and sintered by the reactive spark plasma sintering (RSPS) method. The effect of the SPS temperature on the synthesized phases and microstructure was investigated by x-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). The XRD results showed that the in situ reactions occurred at 1000 to 1300 °C during RSPS. The maximum density (4 g/cm3) and hardness (19.7 GPa) were obtained for the composition which was consolidated at 1300 °C for 10 min.
Journal of the Australian Ceramic Society – Springer Journals
Published: Dec 18, 2017