A Novel Route to Greatly Enhanced Dielectric Permittivity with Reduce Loss Tangent in CaCu3−xZnxTi4O12/CaTiO3 Composites. Issue 8 (28th June 2014)

• Record Type: Journal Article
• Authors: Jumpatam, Jutapol; Putasaeng, Bundit; Yamwong, Teerapon; Thongbai, Prasit; Maensiri, Santi; Chen, C. M.
• Is Part Of: Journal of the American Ceramic Society. Volume 97:Issue 8(2014)
• Page Start: 2368
• Page End: 2371
• Publication Date: 2014-06-28
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.13048
• Languages: English
• ISSNs: 0002-7820

Abstract

<abstract abstract-type="main" id="jace13048-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Dielectric and nonlinear properties of a binary compound derived from Ca₂Cu₂Ti₄O₁₂ were greatly improved by doping with Zn²⁺ to deliberately create CaCu_{3<italic>–x</italic>}Zn_{<italic>x</italic>}Ti₄O₁₂/CaTiO₃ composites. Ca₂Cu_1.8Zn_0.2Ti₄O₁₂ composition can exhibit an enhanced ε′, ~6, 513, with a strong reduction in tanδ to ~0.015 (at 1 kHz). The nonlinear coefficient and breakdown field strength were significantly enhanced. The dielectric and nonlinear properties were described based on the effect of Zn²⁺ substitution on electrical response of internal interfaces.</p> </abstract>