Transport properties of strontium titanate niobates
Journal Article
·
· Inorganic Materials
OSTI ID:160337
- Ural State Univ., Ekaterinburg (Russian Federation); and others
In this work the authors studied transport properties of Sr{sub 3}NiNb{sub 2}O{sub 10} and Sr{sub 6-x}Ti{sub x}Nb{sub 2}O{sub 11+x} in order to develop views concerning their high-temperature behavior and mechanisms of disordering in their structures. The authors measured the electrical conductivity (f+1 kHz, RLC meter, 500-1300{degrees}C) and the effective self-diffusion coefficients of radionuclides {sup 90}Sr, {sup 44}Ti, and {sup 95}Nb using radiometric depth profiling (RKB-4IeM {beta}-radiometer) of ceramic samples (porosity no greater than 10%), as described. The samples with radionuclides applied to their faces were annealed in the range 1270-1470 K for 24-100 h. The error in the diffusion coefficients thus measured did not exceed 20%.
- OSTI ID:
- 160337
- Journal Information:
- Inorganic Materials, Journal Name: Inorganic Materials Journal Issue: 8 Vol. 31; ISSN INOMAF; ISSN 0020-1685
- Country of Publication:
- United States
- Language:
- English
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