Low loss and temperature stable microwave dielectrics using Li 2(Mg1-xAx)Ti3O 8 (A2+ = Zn, Co; X = 0.02-0.1) ceramics

Chia Hui Su, Yi Da Ho, Cheng Liang Huang

研究成果: Article

8 引文 斯高帕斯(Scopus)

摘要

The microstructure and microwave dielectric properties of Li 2(Mg1-xAx)Ti3O 8 (A2+ = Zn, Co and x = 0.02-0.1) ceramics are investigated. The forming of solid solutions was confirmed by XRD analysis, EDX analysis, and the measured lattice parameters. It was found that a small amount of Zn- or Co-substitution for Mg had a significant effect on the Q × f of the ceramics, increasing its value by up to 260% compared to that of pure Li2MgTi3O8. The relationships between ionic polarizability, packing fraction, and microwave dielectric properties in Li 2(Mg1-xAx)Ti3O 8 ceramics are also discussed. The specimen comprising Li 2(Mg0.96Zn0.04)Ti3O8 possesses a moderate εr of 28.7, a very small τf of -3.18 ppm/°C, and an extremely high Q × f of 151,200 GHz, demonstrating a unique potential for low-loss microwave applications.

原文English
頁(從 - 到)67-72
頁數6
期刊Journal of Alloys and Compounds
607
DOIs
出版狀態Published - 2014 九月 15

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

指紋 深入研究「Low loss and temperature stable microwave dielectrics using Li <sub>2</sub>(Mg<sub>1-x</sub>A<sub>x</sub>)Ti<sub>3</sub>O <sub>8</sub> (A<sup>2+</sup> = Zn, Co; X = 0.02-0.1) ceramics」主題。共同形成了獨特的指紋。

  • 引用此