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The observation and prediction of constant quality factors of LnAlO_3 doped Ba_(6-3x)Ln_(8+2x)Ti_(18)O_(54)(Ln = Nd, Sm, La) ceramics

Chen, Hetuo and Zhang, Shuren and Tang, Bin and Yang, Han and Zhou, Moke and Si, Feng and Li, Enzhu and Wang, Huolei and Quan, Xiangqian and Li, Hao (2018) The observation and prediction of constant quality factors of LnAlO_3 doped Ba_(6-3x)Ln_(8+2x)Ti_(18)O_(54)(Ln = Nd, Sm, La) ceramics. Ceramics International, 44 (5). pp. 4611-4614. ISSN 0272-8842. https://resolver.caltech.edu/CaltechAUTHORS:20171122-080847555

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Abstract

Usually, the quality factor of a binary-phase ceramic will increase if the volume molar ratio of the high quality factor component increases, and vice versa. However, the quality factor of Ba_(6-3x)Ln_(8+2x)Ti_(18)O_(54) (Ln = Nd, Sm, La) ceramics (~ 2500 at 4 GHz) keeps a constant as the volume molar ratio of LnAlO_3 (~ 9000 at 7 GHz) increases. While previous studies reported the importance of microstructure variation, here by fitting the dielectric constant, via definition we derived a quality factor calculation formula that can precisely determine the quality factor variation versus the volume molar ratio, which is of great significance for guiding the ceramic manufacturing.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.ceramint.2017.11.139DOIArticle
ORCID:
AuthorORCID
Chen, Hetuo0000-0003-1875-5041
Tang, Bin0000-0002-3851-2330
Wang, Huolei0000-0001-6245-8090
Alternate Title:The observation and prediction of constant quality factors of LnAlO3 doped Ba6-3xLn8+2xTi18O54 (Ln = Nd, Sm, La) ceramics
Additional Information:© 2017 Elsevier Ltd and Techna Group S.r.l. Received 22 August 2017, Revised 19 November 2017, Accepted 19 November 2017, Available online 21 November 2017. This work is supported by the National Natural Science Foundation of China (Grant No. 51672038 and 51402039). Hetuo Chen gratefully acknowledges the support provided by the China Scholarship Council (CSC, 201506070064) during a visit to the California Institute of Technology. The authors thank Mr. Zhe Xiong for the experimental help.
Funders:
Funding AgencyGrant Number
National Natural Science Foundation of China51672038
National Natural Science Foundation of China51402039
China Scholarship Council201506070064
Subject Keywords:Constant quality factor; dielectric constant; Maxwell-Wagner equation
Issue or Number:5
Record Number:CaltechAUTHORS:20171122-080847555
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20171122-080847555
Official Citation:Hetuo Chen, Shuren Zhang, Bin Tang, Han Yang, Moke Zhou, Feng Si, Enzhu Li, Huolei Wang, Xiangqian Quan, Hao Li, The observation and prediction of constant quality factors of LnAlO3 doped Ba6-3xLn8+2xTi18O54 (Ln = Nd, Sm, La) ceramics, Ceramics International, Volume 44, Issue 5, 2018, Pages 4611-4614, ISSN 0272-8842, https://doi.org/10.1016/j.ceramint.2017.11.139. (http://www.sciencedirect.com/science/article/pii/S0272884217325981)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83422
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:22 Nov 2017 17:00
Last Modified:02 Jun 2020 22:37

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