Tetra-needle zinc oxide/silica composites: High-temperature dielectric properties at X-band

Jie Yuan, Wei Li Song, Xiao Yong Fang, Xiao Ling Shi, Zhi Ling Hou, Mao Sheng Cao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Nano-structural ZnO of unique electrical and optical properties is highly attractive in dielectric and microwave applications, specifically considered as ideal fillers for achieving light-weight composites. In this work, tetra-needle ZnO (T-ZnO) by a direct combustion approach was selected as the filler in silica nanopowders for fabricating T-ZnO/SiO2 composites. Temperature effects on dielectric properties of the composites were investigated in the temperature range of 300-700°C at 8.2-12.4 GHz. The observed imaginary permittivity and loss tangent was found to be temperature dependent, and the mechanism associated with relaxation and electrically conductive loss was discussed.

Original languageEnglish
Pages (from-to)64-68
Number of pages5
JournalSolid State Communications
Volume154
Issue number1
DOIs
Publication statusPublished - Jan 2013

Keywords

  • A. Zinc oxide
  • D. Dielectric properties
  • D. High temperature
  • D. Loss tangent

Fingerprint

Dive into the research topics of 'Tetra-needle zinc oxide/silica composites: High-temperature dielectric properties at X-band'. Together they form a unique fingerprint.

Cite this