Auger electron spectroscopy was used to measure the dissolution rate of O from Zr(00•1) and Zr(10•0) surfaces and into the bulk. Satisfactory results were obtained by applying a model to diffusion data for these Zr surfaces under various heating conditions. These were a rapid temperature ramp-and-hold, or continuous linear heating as a function of time. The associated Arrhenius expressions were:

[00•1]     D (cm2/s) = 0.115 exp[-44.45(kcal)/RT]

[10•0]     D (cm2/s) = 1.07 exp[-46.18(kcal)/RT]

B.Li, A.R.Allnatt, C.S.Zhang, P.R.Norton: Surface Science, 1995, 330, 276-88