Abstract
The influences of different doping contents of composite additive La2O3–B2O3–ZnO–CaO (LBZC) on the sintering behavior, microstructure and microwave properties of Ba0.75Sr0.25(Nd0.75Bi0.25)2Ti4O12 (BSNBT) microwave ceramics were investigated. With an increasing doping content of LBZC, the sintering temperature gradually decreased. The sintering temperature of BSNBT ceramics was significantly lowered to 880 °C by the addition of 20 wt% LBZC. The scanning electron microscopy photographs showed that the fraction of liquid phase increased as increasing the content of LBZC, resulting in deteriorated microwave properties. According to the X-ray diffraction patterns, the dominant crystal phase of samples transformed from BaNd2Ti4O12 to the minor phase of Ba2Ti9O20 with 10 wt% LBZC dopant, which was further confirmed by energy dispersive spectrometer. The sample with 15 wt% LBZC sintered at 900 °C exhibited the optimum microwave dielectric properties: er = 54.9, Q × f = 2949 GHz, and τf = 17.2 ppm/°C.
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 callMore 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.
