We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A new route to improve microwave dielectric properties of low-temperature sintered LiTiO-based ceramics.
- Authors
Liang, Jun; Lu, Wenzhong; Lei, Wen; Fan, Guifen; Ma, Huiru
- Abstract
Low-temperature sintered LiTiO-based ceramics for low temperature co-fired ceramic resonators were synthesized by a solid state reaction method. Their microwave dielectric properties were further improved by CeO addition. When the amount of CeO increased, the relative permittivity ( ε) of the samples increased a little and then decreased. The quality factor ( Q × f) of the samples was improved obviously for a higher standard reduction potential of cerium than that of titanium. The temperature coefficient of resonant frequency ( τ) of the samples decreased with the increase of CeO addition. CeO mainly existed as a secondary phase and it facilitated the sintering of the LiTiO-based ceramics. Typical microwave dielectric properties of ε = 22.97, Q × f = 34,881 GHz, and τ = 33.12 ppm/°C were obtained for LiTiO + 2 wt% ZnO-BO frit + 0.9 wt% CeO ceramics sintered at 920 °C for 4 h. The addition of oxidizers was proved a promising route to improve the microwave dielectric properties of titanate ceramics sintered at low temperatures.
- Subjects
DIELECTRICS; MICROWAVES; LOW temperatures; SINTERING; LITHIUM titanate; CERAMIC metals; ADDITION reactions; PERMITTIVITY
- Publication
Journal of Materials Science: Materials in Electronics, 2013, Vol 24, Issue 10, p3625
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-013-1294-z