An investigation was made of the preparation, morphology, structure, thermal expansion, surface composition, and electronic and ionic conductivities of Ca0.30Mn0.95Ni0.05O3 perovskite. The ionic conductivities (table 113) were determined by using encapsulated zirconia micro-electrodes, and a Hebb-Wagner analysis of the current versus voltage curves.

P.Shuk, K.Künstler, W.Richter, U.Guth, L.Tichonova: Solid State Phenomena, 1994, 39-40, 103-6

Table 113

Oxide Ion Conductivities of La0.70Ca0.30Mn0.95Ni0.05O3 Perovskite

 

Temperature(K)

PO2 (bar)

(S/cm)

973

0.2

3.90

973

10-5

3.80

973

10-6

3.50

973

10-7

3.20

973

10-9

3.15

973

10-11

3.05

923

0.2

4.20

923

10-5

4.10

923

10-6

3.80

923

10-7

3.65

923

10-9

3.60

923

10-11

3.55

873

0.2

4.65

873

10-5

4.60

873

10-6

3.90

873

10-7

3.80

873

10-9

3.75

873

10-11

3.70