Material Science

Classification of Solids Solids, on the basis of their structures, may be classified as: Examples of such solids are as under: Metallic solids: Na, Cu, Zn; compounds such as borides, hydrides, nitrides, carbides etc. formed by transition elements. Ionic solids: NaCl, Na2SO4, MgAl204, calcite (CaCO3), magnesia (Mg0), Zincblende (or sphalerite) ZnS having FCC structure, and […]

Crystal Structure of Solids The study of geometry and structure of solids is a science known as crystallography. X-rays and microscopes have substantially contributed to this area. The atoms and molecules are held together by chemical bonds in the solids. The orientation, periodicity, and symmetries of atoms and molecules vary widely. The arrangement of atoms