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Polymorphic Mode without Shape Optimization

In other words, at this zone width, the nucleation of AI9C02 is still thermodynamically suppressed. [Pg.109]


Figure S.6 Section through the AC(N,Cx) surfaces for the polymorphic mode without shape optimization at a composition Cy = 15 at.% (a = 8 X 10 J/atom, calculation for different diffusion zone widths /f) = 3 nm K2 = 3.5 nm ... Figure S.6 Section through the AC(N,Cx) surfaces for the polymorphic mode without shape optimization at a composition Cy = 15 at.% (a = 8 X 10 J/atom, calculation for different diffusion zone widths /f) = 3 nm K2 = 3.5 nm ...
Thus, it turns out that the curvature parameter required for the numerical calculation to obtain critical gradients in the order of the experiment is quite reasonable and corresponds to the thermodynamic situation of the Al-Co system. Especially, for the polymorphic nucleation mode without shape optimization, we find almost exact agreement. The value of a = 8 x 10 J/atom for the polymorphic mode without... [Pg.111]

The polymorphic mode of nucleation is characterized by the conservation of the concentration profile, which is a reasonable assumption if the system has no time to redistribute atoms inside and outside the nucleus in the process of lattice transformation. For the polymorphic mode, we also consider the two cases discussed earlier (i) without shape optimization (rp = 1) and (ii) with shape optimization. [Pg.107]


See other pages where Polymorphic Mode without Shape Optimization is mentioned: [Pg.108]    [Pg.108]    [Pg.108]    [Pg.108]   


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