J.A. Trujillo, A. Garcia-Muriel, Ruben-Dario Ortiz-Ortiz, E.E. Quinones, Ana-Magnolia Marin-Ramirez, Thermal, Electrical and Structural Characterization of MI-AgI (M = Na, Li) Systems above Room Temperatures, Journal of Engineering and Applied Sciences, Volume 11,Issue 12, 2016, Pages 2709-2712, ISSN 1816-949x, jeasci.2016.2709.2712, (https://makhillpublications.co/view-article.php?doi=jeasci.2016.2709.2712) Abstract: The thermal (DSC) and electrical (IS) and structural (XRD) behavior of MI-AgI (M = Na, Li) systems were investigated for temperatures above 300 K. The slow evaporation method was used to synthesized samples under concentrations given by the relationship: xAgI-(1-x) NaI and xAgI-(1-x) LiI with x = 0.8. The characterization results reveal how the AgI conductivity jump at T = 420 K, this was reduced when the Li+or Na+was interchanged for Ag+ion due to the cooperative effects of ion-ion and ion-lattice interactions. The transition temperature of the system decreased as the doping concentration was increased. The reached conductivities (>10-4 S/cm) and the low activated energy values (lower than those found with AgI) show the importance of xAgI-(1-x)LiI systems, allowing a wider knowledge of the behavior of solid conductors developed based on silver iodide compounds. Keywords: X-ray diffraction;Phase transition;ionic conductivity;system;energy