Cu-Cr alloys, irradiated with a low-energy, high-current electron beam, are analyzed by high-resolution secondary ion mass spectrometry. Mass spectra and images of Cu+ and Cr+ surface distributions finely reveal the regions enriched in Cu and Cr. For electron beam energies above a threshold value, the formation of a non-equilibrium Cu1-xCrx solid solution, extending over submicrometer areas is highlighted for the first time. A discussion of the process leading to Cu1-xCrx formation is given.
SIMS direct surface imaging of Cu1-xCrx formation
Lamperti A;
2006
Abstract
Cu-Cr alloys, irradiated with a low-energy, high-current electron beam, are analyzed by high-resolution secondary ion mass spectrometry. Mass spectra and images of Cu+ and Cr+ surface distributions finely reveal the regions enriched in Cu and Cr. For electron beam energies above a threshold value, the formation of a non-equilibrium Cu1-xCrx solid solution, extending over submicrometer areas is highlighted for the first time. A discussion of the process leading to Cu1-xCrx formation is given.File in questo prodotto:
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