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Fabrication and Characterization of Dysprosium‐Doped Bismuth Oxide Films for IT ‐ SOFC s via Slurry Spin Coating Technique
Author(s) -
Ersoy Ersay,
Cakar Soner,
Yildiz Esra,
Yilmaz Serdar,
Turkoglu Orhan,
Sarioz Ozlem
Publication year - 2015
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12387
Subject(s) - materials science , dysprosium , spin coating , bismuth , sintering , coating , doping , electrical resistivity and conductivity , phase (matter) , conductivity , analytical chemistry (journal) , oxide , chemical engineering , nanotechnology , composite material , metallurgy , inorganic chemistry , chemistry , optoelectronics , chromatography , engineering , organic chemistry , electrical engineering
The production and stabilization of the fcc ‐phase Bi 2 O 3 solid solution (δ‐ DSB ) in the binary system of (Bi 2 O 3 ) 1− x (Dy 2 O 3 ) x have been investigated in the doping range of 0.10 ≤ x ≤ 0.25 by adding Dy 2 O 3 into pure α‐Bi 2 O 3 . All δ‐ DSB samples were stabilized and exhibited single δ‐phase at 800°C. Thick film solid electrolytes were produced by the spin coating method. All of the coating and sintering parameters were optimized. Crystallographic, microstructural, and electrical characterizations were made for the produced films. The highest value of conductivity was ~1–10 Scm −1 for 11–15 mol% δ‐ DSB film samples. The electrical conductivity curves of samples showed regular increase.