Question

What affects Young's modulus?

Answer 1

Young's modulus

1. The size of the strain produced in a given material is the same regardless of whether the stress is tensile or compressive, according to many experimental findings and results.
2. The ratio of tensile or compressive stress $\sigma$ to longitudinal strain $\epsilon$ , represented by the symbol "$Y$," is the definition or expression of Young's modulus. $Y=\sigma \epsilon$

Factors affecting Young's modulus

1. Temperature: A measurement of a material's stiffness is its Young's modulus. The material's stiffness reduces as the temperature rises due to the material's lengthening. As a result, we can state that Young's modulus drops as the temperature rises.
2. When the impurity concentration is less than 10%, Young's moduli decrease roughly linearly as the impurity concentration increases, with the impurity Si causing the biggest decreasing ratio and the impurity N the smallest.