Question: Suppose 3 grain boundaries intersect at a node as shown in the image below. Provethat frac{gamma_2_3}{sintheta_1 }+frac{gamma_1_3}{sintheta_2 }=frac{gamma_1_2}{sintheta_3 } Under what conditions will the angles

Suppose 3 grain boundaries intersect at a node as shown in the image below. Provethat\frac{\gamma_2_3}{sin\theta_1 }+\frac{\gamma_1_3}{sin\theta_2 }=\frac{\gamma_1_2}{sin\theta_3 }

Under what conditions will the angles be equal?

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