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Structural Investigations On Nanocrystalline Ni-W Alloy Films By Transmission Electron Microscopy
Structural Investigations On Nanocrystalline Ni-W Alloy Films By Transmission Electron Microscopy
A.S. Md Abdul Haseeb
Electrodeposited Ni-W alloys have been investigated in the as-deposited state by transmission electron microscopy in order to investigate the microstructural features in dependence of the tungsten content. Within the tungsten content range from 7 at.% up to 12 at.%, the microstructure is nanocrystalline characterized by a bimodal grain size distribution, consisting out of 20 to 200 nm sized grains and also larger grains with several 100 nm characteristic dimension. No clear trend in microstructure formation is visible with W content or deposition conditions in the investigated W content range. Only solid solution phase characteristics were observed. The lattice constant is …