Influence of Dopants on Structure of Polycrystalline Bismuth Niobate

Bismuth niobate (BiNbO ) has attracted attention as a low-fired ceramics with promising microwave application potential. BiNbO ceramics was fabricated by mixed oxide method and sintered at temperature <1000°C. As the sintering aids a small amount of CuO oxide was used. The crystalline structure o...

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Bibliographic Details
Published inAdvances in materials science Vol. 18; no. 4; pp. 35 - 41
Main Authors Czekaj, D., Lisińska-Czekaj, A.
Format Journal Article
LanguageEnglish
Published Gdansk Sciendo 01.12.2018
De Gruyter Poland
Subjects
BiNbO
Bismuth
Ceramics
Copper oxides
Crystal structure
Crystals
Dopants
Niobates
phase analysis
Rietveld method
Sintering aids
X-ray diffraction
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Summary:Bismuth niobate (BiNbO ) has attracted attention as a low-fired ceramics with promising microwave application potential. BiNbO ceramics was fabricated by mixed oxide method and sintered at temperature <1000°C. As the sintering aids a small amount of CuO oxide was used. The crystalline structure of the ceramic samples was examined by X-ray diffraction method at room temperature. The Rietveld refinement method was used for analysis of diffraction data. As a result an influence of dopants on crystal structure of bismuth niobate (BiNbO ) ceramics was revealed. It was found that fabricated BiNbO ceramics adopted the orthorhombic symmetry ( -BiNbO phase, (52) space group). Small differences in elementary cell parameters were found.
ISSN:2083-4799
1730-2439
2083-4799
DOI:10.1515/adms-2017-0048