Question

Which of the following advantages are normally associated with aluminum and its alloys?

Is lightweight, has good electrical and thermal conductivity and can be recycled

Has the structural strength of brass, is bio-degradable and flammable

Has very high strength and hardness and is ideal for wear applications

High density, easy to melt and can be used to plate steel

Answer 1

Solution:

The advantages that are normally associated with aluminum and its alloys are that it is lightweight, has good electrical and thermal conductivity, and can be recycled. This can be easily verified using the physical property data if metals (see fig 1 and 2)

Fig 1:

Fig 2

Specific Explanation:

• Al is lightweight: From fig 1, we see that the density of Al is 2.7gm/cc which is almost 4 times smaller than brass and other comparable metals. hence it's lightweight. In fact, it is one of the most lightweight metals available.
• Al has good electrical and thermal conductivity: From fog 2 we see that the thermal and electrical conductivity to Al is almost half od CU and better than brass and steel.
• Proof of Application: It is because of these properties that Al is often used in weight conscience applications like aero and motorsport industry, It is often used as packaging foils due to its good recyclability.

• Comments:
• Feel free to ask for any help in the comment section.
• Please rate my work.