Film models ionic transport mechanisms

According to the basic statement of the models we are going to summarize, the metal is conceived as a network of cations immersed in a cloud of free electrons in a crystalline structure. The transport of the ions controls the growth of the new phase (Figure 8.2). The ionic transport will depend on the nature of the system and on experimental conditions, such as temperature, local electric field, local concentration excess, etc. To better understand the continuous-film models, the main ionic transport mechanisms in crystalline solids are presented [1] as follows. 

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