1.

Neck growth rate due to surface diffusion from the surface source is R1= _______

A. 2Dsδs\(FK_{1}^3\)
B. 2Dsδs\(FK_{3}^1\)
C. 2Ds\(FK_{1}^3\)
D. 2Dsδs\(FK_{1}^4\)
Answer» B. 2Dsδs\(FK_{3}^1\)


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