determine whether an application is possible No matter how good the electric, magnetic, chemical or other properties are, a material is of no use if it does not fulfill mechanical requirements hardness compressive & tensile strength
Functional Solid State Materials Electrical properties Optical properties Magnetic properties Mechanical properties “the secret for transmuting base metals into precious gold” Materials & History
Three Ways to Describe Crystal Structures Three Structural sketches of P4O10 molecules: (a)Stick-ball model:showing that the P-O chemical bond is the tetrahedral coordination and sp3 covalent bonds