Abstract
In this study, nano-sized PbO-B2O3-SiO2 glass powders were directly prepared by high temperature flame spray pyrolysis. Glass powders prepared at a low flow rate of fuel gas had bimodal size distributions of nano-sized and submicron-sized powders. However, nano-sized glass powders with a narrow size distribution were prepared via a chemical vapor deposition (CVD) process at a high flow rate of fuel gas as 4.5 L/min. The mean size of the glass powders formed by the CVD process was 38 nm. Nano-sized glass powders were found to have high transmittances above 83% at sintering temperatures between 480 and 520°C. On the other hand, transmittances of the dielectric layers formed from the glass powders with bimodal size distributions of nano- and submicron-sized powders decreased with a decrease of sintering temperatures. The dielectric layers formed from the nano-sized glass powders had a dense structure with no porous areas inside the layer at low sintering temperatures.
Original language | English |
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Pages (from-to) | 600-604 |
Number of pages | 5 |
Journal | Journal of the Ceramic Society of Japan |
Volume | 116 |
Issue number | 1353 |
DOIs | |
Publication status | Published - 2008 May |
Externally published | Yes |
Keywords
- Dielectric material
- Flame spray pyrolysis
- Glass powder
- Spray pyrolysis
ASJC Scopus subject areas
- Ceramics and Composites
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry