Mossbauer effect study of iron-implanted copper alloys. II. As a function of annealing temperature

For pt.I see ibid., vol.8, p.351 (1978). The ageing of implanted copper-iron alloys is observed for doses of 5*10 15 , 1*10 16 and 5*10 16 ions 57 Fe cm -2 using Mossbauer conversion electron scattering. The temperatures at which diffusion occurs either within or away from the implanted layer are related to the iron concentration and to the nature of the defects produced during implantation. For the highest dose, 5*10 16 ions cm -2 , there is an additional stage associated with the release of vacancies trapped at iron atoms.