10 TEM

In TEM we learnt about the classification of metal,characteristics of metal and safety.
  

We learnt about three kinds of metal;

*ferrous metal -Non-Ferrous metal do not contain iron, they’re also no magnetic, they are also generally more expensive than ferrous metal. Example of Non Ferrous metal Lead,Copper,Zinc,Brass,Electrical Cable,Aluminium alloy, nickel,and titanium.

*Non-ferrous metal - Most ferrous metal do not contain Iron. Ferrous metal are magnetic.They have small amounts of other metals ,to give the required properties.Example of Ferrous metal are Cast iron, mild steel, medium carbon steel, High carbon steel and high speed metal

*alloy- Alloy is a mixture of a metal and another element. Alloy are defined by a metallic bonding character. It’s also may be a solid solution of metal element.An alloy may be a solid solution of metal element or a mixture of metallic phases.

In the characteristics of metal we learnt about.

Hardness- Ability of a material to resist penetration or scratching  

Ductility -  Ability of a material to  be drawn into wires.

Brittleness - A material is brittle, when subjected to stress.Brittle materials absorb relatively little energy prior to fracture, even those of high strength.

Toughness- Property of a material where it can absorb energy before actual fracture.

Elasticity- property due to which metal regains its original dimension on removal of load