The conductivities of solid solutions which contained 10mol% of the rare-earth oxide were measured (table 145) in order to determine the form of the temperature variation. It was found that the Arrhenius plots were broken straight lines, with a number of linear sections which depended upon the nature of the added ion (see entries for ZrO2-Ho2O3, ZrO2-Lu2O3, ZrO2-Nd2O3, ZrO2-Sc2O3, ZrO2-Y2O3 and ZrO2-Yb2O3).

A.N.Vlasov: Elektrokhimiya, 1989, 25[5], 699-702

 

 

 

Table 145

Ionic Conduction Parameters for ZrO2-10mol%Gd2O3

 

Temperature (K)

ln[o (SK/cm)]

E (kJ/mol)

1770-1490

5.27

77

1490-1250

5.64

88

1250-1030

6.06

98

< 1030

6.92

114

Gd: ionic radius = 0.0938, polarizability = 0.0019