Question

Which material has the least coefficient of thermal expansion?

Answer 1

1. The rate at which a material expands as temperature rises are known as the coefficient of thermal expansion (C.T.E).
2. The material is assumed to still be in its solid or fluid form as this coefficient is calculated at constant pressure and without a phase transition.
3. Yb, Ga, Ge has The lowest thermal expansion. An alloy of Gallium, Germanium, and Ytterbium is known as Yb, Ga, Ge.