TY - JOUR A1 - Ermawati, F. U. A1 - Supardi, Z. A. I. A1 - Suasmoro, S. A1 - Hübert, Thomas T1 - Contribution of Relaxation Effect to the Permittivity of Mg1-xZnxTiO3 Ceramics N2 - This work reported the investigation on the effect of relaxation to the permittivity (epsilon' r ) characteristic of Mg1-x Zn x TiO3 ceramics for x = 0 – 0.5 (MZT0 – MZT0.5) measured from 1 Hz to 330 MHz. Within that frequency range, the relaxation effect that consists of the space charge (SC) and the dipolar (D) polarization mechanisms were identified. The contribution of the D relaxation in MZT0 – MZT0.2 systems extents overall from about 100 Hz to 330 MHz, while that in MZT0.3 – MZT0.5 systems is from 50 kHz to 330 MHz. The remaining frequencies, i.e. from 1 to 90 Hz for MZT0 – MZT0.2 and from 1 Hz to 50 kHz for MZT0.3 – MZT0.5, are attributed to the SC relaxation. The D polarization mechanism provides constant epsilon' r values which vary from (15.4 – 17.0) ± 0.3 throughout the samples. Contribution of the SC polarization mechanism to the characteristic is supported by the simultaneous presence of different content and level of resistivity of the secondary phase of (Mg1-αZnα)2TiO4 in MZT0 – MZT0.2 systems and of (Zn1-αMgα)2TiO4 in MZT0.3 – MZT0.5, along with the presence of the main Mg1-x Zn x TiO3 phase, as a result of the variation of zinc content in the systems. T2 - The 5th International Conference on Advanced Materials Sciences and Technology (ICAMST 2017) CY - Makassar, Indonesia DA - 19.09.2017 KW - Dielectric ceramic KW - dipolar polarization KW - Mg1-xZnxTiO3 KW - permittivity KW - space charge polarization PY - 2018 U6 - https://doi.org/10.1088/1757-899X/367/1/012003 SN - 1757-8981 VL - 367 SP - 1 EP - 6 PB - IOP Publishing Ltd AN - OPUS4-45618 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -