Electrical Engineering Material

1. ELECTRICAL ENGINEERING
MATERIALS
MR. ASIF L. JAMADAR

2. SECONDARY BOND: VAN DER WAAL BONDING
 Weak or secondary bonds are known as Van der Waals forces.
 With secondary bonds, Molecules can be viewed as Electrical Dipoles
2

3. 3
 Momentary polarization caused by random movement of electrons
 Dispersion effect
 Hydrogen Bridge
 Such bonds has significant in biology system & engineering.

4. ATOM ARRANGEMENT IN MATERIALS
 Significant effect on its properties
 As manner of atomic grouping, the materials are classified as
 Molecular structures
 Crystal structures
 Amorphous structures
4

5. CRYSTALLINE STRUCTURE OF METALS
 Metals are most important class of materials used in engineering application
 These materials have metallic bond.
 When metals solidify by cooling……
 Lattice form
 Iron is the example of allotropic change
 14 different crystal structures 5

6. 6

7. 7

8. THANK
YOU
8