The chronopotentiometric method was used to study the diffusion of Mg ions in molten samples. The results for temperatures ranging from 750 to 850C could be described by the parameters: log[D(cm2/s)] = -1.86 – 2200/T(K) and Q(kJ/mol) = 42.40. G.A.Kotelnikova, P.V.Polyakov: Izv. Vyssh. Uchebn. Zaved., Tsvetn. Metall., 1975, 5, 153-5

 

Table 68

Diffusivity of Li in KCl Single Crystals

 

Temperature (C)

Li (mol%)

D (cm2/s)

717

0.1700

4.1 x 10-7

688

0.0434

2.3 x 10-7

663

0.0881

7.0 x 10-8

625

0.0480

3.5 x 10-8

553

0.0385

6.5 x 10-9