Solid-state reaction diffusion between Ag and Zr at temperature ranging from 980 to 1190K was studied. Two compounds, AgZr and Zr2Ag, were observed in the diffusion zone; with some 95% of the total thickness being occupied by the AgZr phase. From the parabolic growth laws of the various phases, it was deduced that the interdiffusivity in AgZr could be described by:

D (m2/s) = 1.5 x 10-5exp[-167(kJ/mol)/RT]

and the interdiffusivity in Zr2Ag could be described by:

D (m2/s) = 1.5 x 10-6exp[-177(kJ/mol)/RT]

O.Taguchi, Y.Iijima: Materials Transactions, 1994, 35[10], 673-8