Abstract
B-doped SiC powders were synthesized at different temperatures by sol-gel. Results show that C-enriched β-SiC is generated completely when the temperature is 1700 °C and SiC(B) solid solution is generated when the temperature is 1800 °C. The electric permittivities of SiC samples were determined in the frequency range of 8.2-12.4 GHz. Results show that the SiC(B) sample has higher values in real part ε′ and imaginary part ε″ of permittivity. The mechanism of dielectric loss by doping has been discussed.
Original language | English |
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Pages (from-to) | 506-509 |
Number of pages | 4 |
Journal | Journal of Alloys and Compounds |
Volume | 475 |
Issue number | 1-2 |
DOIs | |
State | Published - 5 May 2009 |
Keywords
- Dielectric properties
- Point defects
- SiC(B) solid solution
- Sol-gel processes