Citation
Jesurani, Sinnappan and Kanagesan, Samikannu and Hashim, Mansor and Ismail, Ismayadi and Abdullah, Nor Hapishah
(2014)
Influence of ER doping on the microstructural and dielectric properties of microwave sintered calcium copper titanate.
Der Pharma Chemica, 6 (3).
pp. 17-23.
ISSN 0975-413X
Abstract
The present work reports synthesis, as well as a detailed characterization of structural, morphological and dielectric properties of Er doped CaCu3Ti4-xErxO12 (CCTEO) with x = 0.00, 0.02, 0.10, 0.20 and 0.50 mol% ceramics were prepared by sol-gel route. The prepared samples were sintered by using microwave sintering. The phase composition and microstructure were studied by means of X-ray diffraction (XRD) and high resolution scanning electron microscopy (HRSEM). The crystal structure did not change on doping with erbium; and it remained cubic when all the six compositions were studied. At lower frequencies, it was found that the dielectric constants had a maximum value at 0.5 mol% of Er. This result indicates that a certain amount of Er dopant can be improve the dielectric properties of CaCu3Ti4O12.
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