By using the method of desorption from previously saturated specimens, the coefficients of diffusion were determined in single crystals at 473 to 823K. The data (table 151) could be described by:

D (cm2/s) = 2.6 x 10-3 exp[-0.29(eV)/kT]

L.V.Gulin, P.V.Volobuev, I.A.Korolev, P.E.Suetin: Fizika Tverdogo Tela, 1977, 19[4], 1017-20

 

Table 151

Diffusivity of 20Ne in RbCl Single Crystals

 

Temperature (K)

D (cm2/s)

823

4.40 x 10-5

773

3.60 x 10-5

723

2.40 x 10-5

673

1.91 x 10-5

623

1.20 x 10-5

573

0.70 x 10-5