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Which of the following material has nearly zero coefficient of expansion...

This question belongs to Mechanical Engineering Engineering Materials
Engineering Materials
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Which of the following material has nearly zero coefficient of expansion?

Answer & Solution
Correct Answer: Option C
Invar is a solid solution, it is a single-phase alloy,
It consisting of around 36% nickel and 64% iron.
And uniquely it has nearly zero coefficient of expansion.
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