The diffusivity of this impurity in sintered Pb0.95Sr0.05(Ti0.47Zr0.53)-1wt%Nb2O5 was measured by using a tracer-sectioning method at between 600 and 1000C. It was found that the impurity had a very high diffusional mobility (table 160).

M.V.Slinkina, G.I.Dontsov, V.M.Zhukovskii, R.R.Khafizov: Izvestiya Akademii Nauk SSSR - Neorganicheskie Materialy, 1990, 26[9], 1964-6. [Inorganic Materials, 1990, 26[9], 1677-9]

Table 160

Diffusion Parameters for V in

Sintered Pb0.95Sr0.05(Ti0.47Zr0.53)-1wt%Nb2O5

 

Temperature (C)

Do (cm2/s)

E (kJ/mol)

700 - 1000

5.1 x 10-2

120

600 - 700

2.2 x 107

300