A Novel Route to Greatly Enhanced Dielectric Permittivity with Reduce Loss Tangent in CaCu3-xZnxTi4O12/CaTiO3 Composites

作者：Jumpatam Jutapol; Putasaeng Bundit; Yamwong Teerapon; Thongbai Prasit^*; Maensiri Santi

来源：Journal of the American Ceramic Society, 2014, 97(8): 2368-2371.

DOI：10.1111/jace.13048

Dielectric and nonlinear properties of a binary compound derived from Ca2Cu2Ti4O12 were greatly improved by doping with Zn2+ to deliberately create CaCu3-xZnxTi4O12/CaTiO3 composites. Ca2Cu1.8Zn0.2Ti4O12 composition can exhibit an enhanced epsilon', similar to 6,513, with a strong reduction in tan delta to similar 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.

• 出版日期2014-8