Pd-Ti alloy surface layers in Ti formed by N- and Ar-pulse plasma alloying
of Pd films deposited by pulse erosion of Pd electrode tips were studied by
RES, XRD, SIMS, and gravimetric analysis. Layers of a thickness up to 2 mu
m and concentration up to 40% Pd at the surface were obtained. Pd is presen
t as a solute in hcp alpha Ti and as TiPd and TiPd3 phases. The Pd profiles
follow Gaussian distribution although no simple theoretical model can acco
unt for this behavior. (C) 2001 Published by Elsevier Science B.V.