^(63)Cu NMR Study of Cu_(83)-Zn_(17) Mixed Powders During Mechanical Alloying

The variations of the ^(63)Cu NMR,spectra of Cu_(83)-Zn_(17) powder mixtures with time of ball milling arc shown and analyzed.With increasing the ball-milling time,theαphase is developed as terminal phase over 5h.accompanying the emergence aid following disappearance of siiiall aniountβphase.The microstructural changes after aging at room temperature are also detected.Some valuable conclusions related to the alloying reaction on an atomic scale have been drawn.