is a physicist, MSc (Solid State Physics), DSc (Nuclear Technology) at the University of São Paulo (USP)/São Paulo/ SP /Brazil. He is a senior researcher in the Materials Science and Technology Center at IPEN (Nuclear and Energy Research Institute). Also, he is lecturer and scientific advisor (MSc and DSc) on graduate course on IPEN -USP. His expertise areas are physical metallurgy, powder metallurgy, nuclear technology (materials), and materials characterization (optical and electron microscopy; microanalysis techniques). He has published more than 150 articles (scientific journals and congress proceedings), chapters, and books in material sciences area. The academic advisories include 50 scientific initiations (undergraduate students), 28 Masters of Science, and 14 Doctors of Science. Contents Preface XIII Section Ionic Materials 1