Abstract
In this work, CaWO4 ceramics with high Q×f levels were successfully sintered at temperatures lower than 950 °C with the additions of very small amounts of Li2CeO3 (i.e., 0.1–2.0 wt.%). CaWO4 + x wt.% Li2CeO3 ceramic samples were found to be consisted of a single sheelite phase with relatively high density levels and homogenous microstructures. The ceramic samples exhibited excellent microwave dielectric properties, for instance, the specimen with 0.5 wt.% Li2CeO3 sintered at 725 °C for 4 h showed the properties of er = 9.9, Q×f = 69000 GHz, and τf = −63 ppm/°C. Moreover, it was found that there was no apparent reaction between the ceramic sample and Ag electrode during the sintering process. Therefore, Li2CeO3 has been proofed to be a highly effective sintering additive of CaWO4 ceramics, which is a promising candidate material for low temperature co-fired ceramic (LTCC) technology.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of Materials Science: Materials in Electronics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.