Abstract
Microwave characteristics of Ba2Ti9O20 ceramics added with different amounts of B2O3 and sintered at high temperatures ranging from 900 to 960°C for 2 h are investigated. It is found that the firing temperature required to densify the Ba2Ti9O20 ceramics is lowered by increasing the B2O3 content. The density and dielectric constants of the B2O3-added ceramics also increase with B2O3 addition. The results of X-ray diffraction (XRD) indicate the presence of five crystalline phases, Ba2Ti9O20, BaZr(BO3)2, BaZrO3, BaTi4O9, and Zn3(BO3)2, in the sintered ceramics, depending upon the amount of B2O3 added. Optimum dielectric properties, i.e., Q=1477 (Q×f=10784), εr=28.3, and τf=-8.2, are obtained for the Ba2Ti9O20 ceramics with 3 wt% B2O3 addition and sintering in air at 940°C for 2 h.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
