Vakhshouri, MaryamTalimian, AliNajafzadehkhoee, AliasgharGallardo López, Ángela MaríaPoyato, RosalíaGutiérrez Mora, FelipeGalusek, Dušan2025-06-062025-06-062025-03-12Vakhshouri, M., Talimian, A., Najafzadehkhoee, A., Gallardo López, Á.M., Poyato, R., Gutiérrez Mora, F. y Galusek, D. (2025). Fabrication of Al2O3-Y3Al5O12-ZrO2 composites by single-step spark plasma sintering. Journal of the European Ceramic Society, 45 (10), 117358. https://doi.org/10.1016/j.jeurceramsoc.2025.117358.0955-22191873-619Xhttps://hdl.handle.net/11441/174026Fabricating Al2O3-Y3Al5O12-ZrO2 ceramic composites with a eutectic microstructure is challenging and costly, as it requires high-temperature melting of precursor materials. Here, we report on the successful production of Al2O3-Y3Al5O12- 5 mol% ZrO2 composites with lamellar eutectic microstructure through single-step spark plasma sintering (SPS) of sol-gel synthesized powder. The release of volatile species from partially calcined powders, due to limited calcination at 1000°C for 2 h, as well as their fine particle size, were used to create the conditions for local electric discharge and plasma formation during SPS; this resulted in the local formation of eutectic liquids, enabling the formation of lamellar microstructures. The microstructural features can be tailored by modifying the calcination process.application/pdf9 p.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/Al2O3-YAGZrO2MicrostructureSpark plasma sinteringinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1016/j.jeurceramsoc.2025.117358