Abstract
Aluminosilicate gels of different alumina and silica ratios and cordierite, Mg2Al4Si5O18 gels were made by the nanocomposite sol-gel route and sintered to obtain highly dense materials. Measurements of the dielectric constant, K, and dissipation (loss) as a function of temperature and frequency showed that low dielectric constants of 5.6 and 5.4 at 1 and 4 MHz, respectively, for cordierite and of 6.9 and 6.7 at 1 and 4 MHz, respectively for mullite at 25°C were achieved. Aluminosilicate materials prepared with 10 wt% Al2O3 and 90 wt% SiO2 showed the lowest dielectric constants of 4.27 and 4.20 at 1 and 4 MHz, respectively.
Original language | English (US) |
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Pages (from-to) | 147-150 |
Number of pages | 4 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 1622 |
DOIs | |
State | Published - 1991 |
Event | Emerging Optoelectronic Technologies 1991 - Bangalore, India Duration: Dec 16 1991 → … |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering