Allen M. Alper – författare

The investigation of multi-component complex systems composed of oxides, nitrides, and carbides has intensified in the last few years. Phase Diagrams in Advanced Ceramics reviews some of the recent advances inthe understanding of these composite systems, providing insight into how phase diagrams can be utilized in the fabrication of whiskers and ceramic-matrix whisker-reinforced ceramics. Phase relations and sintering information is reviewed for transparent polycrystalline oxides. Phase diagrams are discussed to predict alkali oxide corrosion of alumino-silicate references.- Understanding the development, manufacture, and use of complex, multi-component ceramic materials composed of silicon nitride-metal oxides-nitride-carbide systems- Development and use of whisker and whisker-reinforced ceramics composed of materials such as alumina, silicon-nitride, silicon carbide, and directly solidified eutectic ceramics- Application of phase diagrams to the production of advanced composites such as alumina-matrix, zirconium diboride and titanium, hafnium, zirconium, carbides, and borides- Phase chemistry in the development of transparent poly-crystal and oxides, including yttria, alumina, and magnesium aluminate- Improvements concerning the knowledge of complex multi-component materials composed of oxides, nitrides, and carbides, and knowledge of how to fabricate composite materials containing whiskers and ceramic hosts- New developments in making transparent ceramic materials

Introduction to Group Theory with Applications covers the basic principles, concepts, mathematical proofs, and applications of group theory. This book is divided into 13 chapters and begins with discussions of the elementary topics related to the subject, including symmetry operations and group concepts. The succeeding chapters deal with the properties of matrix representations of finite groups, the vibrations of molecular and crystals, vibrational wave function, selection rules, and molecular approximations. These topics are followed by reviews of the basic of quantum mechanics, crystal field theory, atomic physics, hybrid functions, and molecular orbital theory. The last chapters describe the symmetry of crystal lattices, the band theory of solids, and the full rotation group. This book will be of value to undergraduate mathematics and physics students.