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Enhanced dielectric properties with a significantly reduced loss tangent in (Mg²⁺, Al³⁺) co-doped CaCu₃Ti₄O₁₂ ceramics: DFT and experimental investigations.

ABSTRACT: CaCu₃Ti₄O₁₂ and CaCu_2.95Mg_0.05Ti_3.95Al_0.05O₁₂ ceramics were fabricated via a solid-state reaction method. A single-phase of CaCu₃Ti₄O₁₂ was found in these two ceramics. Very great grain size expansion was produced by co-doping with Mg²⁺ and Al³⁺. DFT results indicate that both Mg and Al atoms preferentially occupy Cu sites, creating liquid-phase sintering decomposition at grain boundary layers. Very high dielectric permittivity of ∼58 397 and low loss tangent of about 0.047 were achieved in a CaCu_2.95Mg_0.05Ti_3.95Al_0.05O₁₂ ceramic. Additionally, the temperature stability of the dielectric

SUBMITTER: Boonlakhorn J

PROVIDER: S-EPMC9036887 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Enhanced dielectric properties with a significantly reduced loss tangent in (Mg²⁺, Al³⁺) co-doped CaCu₃Ti₄O₁₂ ceramics: DFT and experimental investigations.

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Enhanced dielectric properties with a significantly reduced loss tangent in (Mg2+, Al3+) co-doped CaCu3Ti4O12 ceramics: DFT and experimental investigations.

OmicsDI is part of the ELIXIR infrastructure

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Enhanced dielectric properties with a significantly reduced loss tangent in (Mg²⁺, Al³⁺) co-doped CaCu₃Ti₄O₁₂ ceramics: DFT and experimental investigations.