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Published in:
01-03-2010
Doping effect of Mg2+ on BaTiO3-based metal–dielectric composite system
Published in: Journal of Materials Science: Materials in Electronics | Issue 3/2010
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Abstract
The improvements of basic magnesium carbonate on the dielectric properties of metal–dielectric composite were researched. By means of SEM, EDS and XRD analytic manners, it can be concluded that Mg2+ replaced B-site (Ti4+) in BaTiO3 lattice, and make Ti enrich on the sample surface. With analysis on dielectric properties, it can be seen when the amount of Mg2+ is 0.9 mol%, the systematic dielectric constant is up to 11,395, the dielectric loss is less than 0.006, and the capacitance temperature percentage is less than ±10% between −55 and 150 °C.