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DC conductivity and hopping mechanism in V2O5–B2O3–BaO glasses

✍ Scribed by El-Desoky, M. M.


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
171 KB
Volume
195
Category
Article
ISSN
0031-8965

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Glasses of composition (V 2 O 5 ) x (B 2 O 3 ) 1Ϫx with x 0:1; 0.3, 0.5, 0.7 and 0.9 were obtained by a quenching technique. Conductivity measurements using s ac were performed on compact pellets of these materials. The conductivity behavior in direct regime, s dc , is described by the "small polaro

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CeO 2 -B 2 O 3 glasses having a broad range of compositions, prepared by a press-quenching method from glass melts, were studied for DC conductivity. The conductivity at 583 K (1000/T ¼ 1.715 K À1 ), ln s 583 , increases by about 16% in the composition regime 20-50 mol% CeO 2 while in the compositio