Interview Questions on Material Science and Engineering

Questions and answers from 31 on Material Science and Engineering.

31. What is allotrope? In what forms of cubic pattern, iron exists ?
Some elements exist in more than one crystalline form. Each crystalline form is known as ‘allotrope’ of the element. Iron exists in two crystalline forms of cubic pattern, namely, body-centered cubic (BCC) and face-centered cubic (FCC).
32. When a material is known as allotropic or polytropic ?
A material is known as allotropic or polytropic if it exists in several forms at a different temperature.

 

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