Solutions to exercises
255
This concentration dominates over that of species of intrinsic origin.
2 the C ′ D ′ domain is interpreted in the same manner as the CD domain
in question 1(b).
3. a. Figure 105 shows the Brouwer diagrams log [i] = f (log P Cl 2 ), where i
denotes a structural defect. The doping translates into an increase in [V
•
Cl ]
and the widening of the electrolytic domain.
b. The use of the solid solution SrCl 2 -KCl as electrolyte is justified by the
presence of a large ionic domain, where the concentration of chlorine
vacancies of extrinsic origin is high and constant because of the dopant
KCl.
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Figure 105 – Brouwer diagram for (a) pure SrCl 2 and (b) solid solution SrCl 2 -KCl.