Future paradigms for precision oncology

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Influence of additives on texture development of submicro- and nanocrystalline Nickel

Organic additives such as saccharin have been frequently used in electroplatingoperations to moderate deposit growth rates and to control film quality. In this study, texturedevelopment upon annealing of pulse-electroplated Nickel produced without additives is analyzedby use of electron backscatter diffraction technique.Plating without additives results in a microstructure with slightly elongated grains and a fibre texture in growth direction and this texture is conserved upon annealing up to 600\ub0C.Structural units in form of groups of elongated grains possessing a common zone axis ingrowth direction and twin relationships between themselves are found in the microstructure. Forrevealing the influence of additives, the observations are compared with results obtained for Ni andNi-Fe plated in the presence of additives where during abnormal grain growth the initial fibre texture changes to an energetically more favourable texture by twinning. The lack ofadditives is assumed to be responsible for the observed differences in texture and microstructuredevelopment