Table 1.

Parameters entering in the growth rate of particles (4.2) for several mass transfer mechanisms [42,43].

mass transfer mechanism	k	δk	λk	u2k	u1k
reaction on the interphase surface	2	${\displaystyle \frac{\pi }{\ln \frac{n-1}{2}}}$	$1+4{\delta }_2^2$	1	3
volume diffusion	3	${\displaystyle \frac{\pi }{\ln \frac{n-1}{3}}}$	${\displaystyle \frac{3}{4}}(1+4{\delta }_3^2)$	1.182	1.786
grain-boundary diffusion	4	${\displaystyle \frac{\pi }{\ln \frac{n-1}{4}}}$	${\displaystyle \frac{2}{3}}(1+4{\delta }_4^2)$	1.183	1.467
diffusion along the dislocations	5	${\displaystyle \frac{\pi }{\ln \frac{n-1}{5}}}$	${\displaystyle \frac{5}{8}}(1+4{\delta }_5^2)$	1.153	1.336