Abstract
There are two major experimental subjects in this study. The small amount of Co2+ substitution on Ba(Mg1/3Nb2/3)O3 and non-stoichiometry of Ba(Mg1/3Nb2/3)O3 were both investigated. The experimental results show that the ordering degree, mean grain size, and quality factor were increasing by small amount Co2+ substitution from x = 0.01 to x = 0.05, and could get an optimal value of quality factor at x = 0.05 (S = 92%, Q x f = 40,000 GHz). Moreover, through decreasing the cooling rate, the ordering degree increased 3% and the relative density increased 2% which increased the quality factor. At x = 0.05, the ordering degree is 95% and Q x f is 59,000 GHz. The experimental results of non-stoichiometry of Ba(Mg1/3Nb2/3)O3 indicated that through the slight deviation of B-site cation, that could obtain a great quality factor. When the composition located in Ba(Mg0.97Nb2.012)1/3O3, the ordering degree is 92% and the Q x f is 116,000GHz. In this study, the results demonstrated that the quality factor is depending on ordering degree and grain size. The quality factor increase while the ordering degree and mean grain size increased. The quality factor is better in non-stoichiometry of Ba(Mg1/3Nb2/3)O3 than small amount of Co2+ substitution of Ba(Mg1/3Nb2/3)O3. In addition, if it could change the sintering conditions to control the cooling rate that will have a higher quality factor.
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.
