Materials science Gengxiang Hu Xun Cai Yonghua Rong ; volume 1: Structure This textbook summarizes physical aspects of materials at atomic and molecular level and discusses micro structure of metals alloys ceramics and polymers. It further explains point defects dislocations and surface imperfections and the motions of atoms and molecular in solid state. As first volume in the set it prepares students for further studies on phases and transitions which are discussed in the next volume.