Cadmium thermodynamic parameters

The surface-phase layers will difier in character depending on the stractures of metal and oxide. On certain metals (zinc, cadmium, magnesium, etc.), loose, highly porous layers are formed which can attain appreciable thicknesses. On other metals (aluminum, bismuth, titanium, etc.), compact layers with low or zero porosity are formed which are no thicker than 1 pm. In a number of cases (e.g., on iron), compact films are formed wfiicfi fiave a distorted lattice, owing to the influence of substrate metal stracture and of the effect of chemical surface forces. The physicochemical and thermodynamic parameters of such films differ from tfiose of ordinary bulk oxides. Because of the internal stresses in the distorted lattice, such films are stable only when their thickness is insignificant (e.g., up to 3 to 5 nm). 

Table 3.5 Thermodynamic Parameters of Reaction of Cadmium(II)-Ammonia Complex with Ethylenediamine... 

The work of Verbrugge and Tobias on CdTe [8] comprises a comprehensive source of information about the electrochemistry of the compound and its components. Deposition features are reviewed, and thermodynamic, transport, and kinetic parameters for cadmium and tellurium deposition are reported. 

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