What are Bimetals?

What are Bimetals?

Bimetal Definition

A bimetal is defined as an object composed of two separate metals joined together, retaining their individual attributes.

Properties of Bimetals

Bimetals combine the distinct qualities of each metal into a single functional unit.

Working Principle

imetals bend when heated or cooled due to the different thermal expansion rates of the metals.

l is the initial length of the object,

Δl is the change in length,

Δt is the change in temperature,

The unit of αL is per °C.

Common Combinations

Common bimetal combinations include iron and nickel, brass and steel, and copper and iron.

Applications of Bimetals

• Thermostats

• Thermometers

• Protective devices

• Clocks

• Coins