DataVXAdvances in Applied CeramicsPaper
journal article·2014-07

Dielectric behaviour of (Mg 0·95 Ca 0·05 )TiO 3 for application in terahertz resonator

Z-C. Ma, Z-M. Xu, S-S. Liu, X-H. Wu, W-N. Zhao, T-Y. Sun, C. Luo, J. Peng

Advances in Applied Ceramics· Volume 113· Issue 5
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Source abstract

Abstract

The 0·15 THz resonator based on the (Mg0·95Ca 0·05)TiO3 (abbreviated as 95MCT hereafter) ceramic was designed, and the dielectric property of 95MCT for application has been studied. La2O3 and Nb2O5 were selected as liquid sintering aids to lower the sintering temperature. X-ray diffraction patterns indicated that MgTi2O5 secondary phase could be effectively suppressed by La2O3 and Nb2O5 additions. When the Nb2O5+La2O3 codoping content was 0·25 wt-%, the ceramic could be densified at 1320°C and also has good dielectric behaviours of Qf = 69720 GHz (6·8 GHz), ϵr = 20·18 and τf = −7·56 ppm °C−1. The terahertz resonator designed at 0·15 THz exhibited that with the increasing height of inner cylinder, the two modes’ resonance frequencies decreased.
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Research context

Ceramics & glasses

OpenAlex topics: Microwave Engineering and Waveguides · Microwave Dielectric Ceramics Synthesis · Acoustic Wave Resonator Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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