Back to Search
Start Over
Low-temperature sintering and microwave dielectric properties of TiO2-based LTCC materials
- Source :
- Journal of Materials Science: Materials in Electronics. 21:1285-1292
- Publication Year :
- 2010
- Publisher :
- Springer Science and Business Media LLC, 2010.
-
Abstract
- Temperature stable high-K LTCC material was prepared. The influence of fabrication process on the crystalline phases, microstructures and microwave dielectric properties of TiO2-Bi2O3-CuO ceramics were investigated. The crystalline phases and microstructures of TiO2-Bi2O3-CuO ceramics were investigated by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray spectroscopy. It was found that rutile TiO2 phase and Bi2Ti4O11 phase co-existed in the TiO2-Bi2O3-CuO ceramics. Separate TiO2 grains and Bi2Ti4O11 grains distributed uniformly in the ceramic matrix. The composition 0.92TiO2-0.08Bi2Ti4O11 with 2 wt% CuO addition that was sintered at 900 °C for 2 h showed high dielectric constant (er ~ 81), high quality factor (Q × f ~ 3,500 GHz) and near zero temperature coefficient of resonant frequency (τf ~ −5.1 ppm/°C), meanwhile the compatibility test showed that it could co-fire with silver electrode. The processing-microstructure-property interrelationship was also studied.
- Subjects :
- Materials science
Scanning electron microscope
Analytical chemistry
Sintering
Dielectric
Condensed Matter Physics
Ceramic matrix composite
Microstructure
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
visual_art
visual_art.visual_art_medium
Ceramic
Electrical and Electronic Engineering
Temperature coefficient
High-κ dielectric
Subjects
Details
- ISSN :
- 1573482X and 09574522
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Science: Materials in Electronics
- Accession number :
- edsair.doi...........14cd0a9a907fc4cdcc6f0aa1ffa2ea98
- Full Text :
- https://doi.org/10.1007/s10854-010-0064-4