Secondary ion mass spectrometry was used to determine the bulk diffusivity of In in single crystals between 602K and the melting point. The diffusion coefficients ranged from 3.3 x 10-12 to 6.0 x 10-21m2/s. Data which were based upon the matrix-normalized 115In+ signal yielded the most accurate Arrhenius parameters for a monovacancy mechanism in the low-temperature region. These were used to derive an expression of the form:

D (cm2/s) = 2.19 x 10-1 exp[-42.4(kcal/mol)/RT]

W.Gust, C.Ostertag, B.Predel, U.Roll, A.Lodding, H.Odelius: Philosophical Magazine A, 1983, 47[3], 395-406

The best linear fits to the solute diffusion data ([678] to [681], [693] to [703], [717] to [722], [725] to [727], [730] to [733], [736] to [739], [756] to [758]) yield:

Ag: Ln[Do] = 0.38E – 18 (R2 = 0.86); Cu: Ln[Do] = 0.44E – 22 (R2 = 0.77);

In: Ln[Do] = 0.50E – 22.8 (R2 = 0.99); O(l): Ln[Do] = 0.26E – 8.4 (R2 = 0.79);

Zn: Ln[Do] = 0.29E – 14.4 (R2 = 0.87)