STRONTIUM DIFFUSION IN SR3-3XLA2X-SQUARE(X)(VO4)(2) SOLID-SOLUTIONS

Authors
LEONIDOVA ON LEONIDOV IA DONTSOV GI ZHUKOVSKAYA AS
Citation
On. Leonidova et al., STRONTIUM DIFFUSION IN SR3-3XLA2X-SQUARE(X)(VO4)(2) SOLID-SOLUTIONS, Physics of the solid state, 40(2), 1998, pp. 200-203
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physics of the solid state → ACNP
ISSN journal
10637834
Volume
40
Issue
2
Year of publication
1998
Pages
200 - 203
Database
ISI
SICI code
1063-7834(1998)40:2<200:SDISS>2.0.ZU;2-Z
Abstract
Layer-by-layer radiometric analysis in the temperature range 800-950 d egrees C was used to measure the diffusion coefficients of Sr-90, Ca-4 5, Ba-133 radionuclides in Sr(3-3x)La(2x)square(x)(VO4)(2) (x = 0,0.1, 0.15,0.2,0.25) solid solutions. It was established that D-Ca>D-Sr*>D- Ba. An increase in the concentrations of vacancies (square) in the st rontium sublattice leads to increased coefficients of diffusion of rar e-earth metal cations. The activation energies for radionuclide diffus ion were determined. It was shown that M2+ cations migrate via Sr(2) p ositions. (C) 1998 American Institute of Physics.