Question

Which material has minimum coefficient of linear expansion

Answer 1

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The coefficient of linear expansion α is the fractional change in length per degree rise in temperature. The amounts of expansion for most solid materials are known and can be found in tables of coefficients of linear expansion.

Material: Linear coefficient α; at 20°C (10¯⁶/°C)

Carbon steel: 10.8

Copper: 17

Diamond: 1

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