3. 1 Basic concepts of al loys 1. Definition An alloy is the combination of metal(s) with other elements through chemical bonding. Termino logy

1. The structure of am b differs from those of either a or B 2. Its composition is variable to more or lessextension 3. Mixed bonding 4. Intermediate properties

2. Classification of materials based on structure Regularity in atom arrangement periodic or not (amorphous)

2.3 Crystal Structure and Complex Lattice | Crystal structure is the real arrangement of atom in crystals Crystal structure Space lattice Basis or structure unit

1.2 Atomic bonding Bonding forces and energies FF net force attractive force repulsive force

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