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 language | English |
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Pages (from-to) | 64-68 |
Number of pages | 5 |
Journal | Solid State Communications |
Volume | 154 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2013 |
Keywords
- A. Zinc oxide
- D. Dielectric properties
- D. High temperature
- D. Loss tangent