RT Journal Article T1 Spark plasma versus conventional sintering in the electrical properties of Nasicon-type materials A1 Pérez Estébanez, M. A1 Isasi Marín, Josefa A1 Rivera Calzada, Alberto Carlos A1 León Yebra, Carlos A1 Nygren, M. AB Li_(1+x)M_(x)Ti_(2−x)(PO_(4))_(3) powders with x = 0 and 0.3 and M = Al, Cr and Fe have been sintered by conventional sintering (CS) and Spark Plasma Sintering (SPS), and the electrical properties have been compared. The use of SPS allows preparing samples with higher density at lower temperature and shorter time than the CS, avoiding segregation of secondary phases and with reduced crystallite size. The introduction of aluminum, chromium and iron in the LiTi_(2)(PO_(4))_(3) (LTP) clearly enhances ionic conductivity even if the samples have similar densities. 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Guizard, S. Surbé, G. Baldinozzi, A. Addad, Acta Mater., 56, 2008, 4658–4672. NO © 2016 Elsevier B.V. This research has been financed by the “Ministerio de Ciencia e Innovación” (MICINN, Spain) and by the “Fundación Neurociencias y Envejecimiento” (Spain) through grants MAT2010-18432 and 4153592, 4143942 respectively as well as by the MAT2013-40722-R project. NO Ministerio de Ciencia e Innovación (MICINN, Spain) NO Fundación Neurociencias y Envejecimiento (Spain) DS Docta Complutense RD 6 oct 2024