LiAlW2O8: A novel temperature stable low-firing microwave dielectric ceramic
| Autor: | Peng Liu, Zhi-fen Fu, Feng Qinqin, Liping Zhao, Xue-Jiao Bai |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Permittivity Materials science Mechanical Engineering Analytical chemistry 02 engineering and technology Dielectric Atmospheric temperature range 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Mechanics of Materials visual_art 0103 physical sciences visual_art.visual_art_medium Relative density General Materials Science Ceramic 0210 nano-technology Temperature coefficient Microwave Monoclinic crystal system |
| Zdroj: | Materials Letters. 178:68-70 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2016.04.117 |
| Popis: | A novel temperature stable microwave dielectric ceramic LiAlW 2 O 8 was prepared by a conventional solid-state reaction method with a low temperature range from 740 °C to 800 °C. A monoclinic structure was observed for LiAlW 2 O 8 ceramic coupled with a minor of second unknown phase. The ceramics could be well sintered at 780 °C for 4 h with 95.6% relative density and exhibited excellent microwave dielectric properties with permittivity ( e r ) of 11.7, Q×f value of 23,000 GHz (at 9.0 GHz), and temperature coefficient of resonant frequency ( τ f ) of −5.3 ppm/°C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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