This comprehensive text revised to cover latest syllabus of B.Tech., M.Sc.(Material Science), M.Sc. (Chemistry), AMIE and Diploma Students provide sound basis for understanding the concepts, theory and applications of Material Science. The book has been revised in such a manner that research students as well as students preparing for GATE, NET, SLET may also find it quite useful. In twenty chapters, the book deals with all aspects of Material Science, e.g. structure crystal defects, various properties, phase diagrams, phase transformations, deformation, oxidation and corrosion, etc. Special chapters on composites, polymers, organic materials, superconducting materials, semiconductors, etc. make book quite useful for advanced studies and research. Highlights of the book Fundamental Principles and Applications are discussed with explanatory diagrams in a clear way. A full coverage of background topics with latest developments is provided. Special chapters on Modern Engineering Materials, Superconductivity, Semiconductors, Polymers, Composites, Organic Materials, etc. are dealt in depth. Worked out typical problems, review questions, problems, short-questions answers and typical objective type questions along with suggested readings are given with each chapter. At the end of each chapter summary is provided which helps in reviewing the entire chapter in short time. Subject matter is dealt from elementary to the advanced level in a unique manner.