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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 177Depolarization Behavior of Lead-Free...

Depolarization Behavior of Lead-Free (Bi_1/2Na_1/2)TiO₃-Based Ferroelectrics with Different Li⁺ Introduction Sources

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Abstract:

Lead-free 0.85(Bi1/2Na1/2)TiO3- 0.10(Bi1/2K1/2)TiO3- 0.05BaTiO3 (BNKB) ceramics with Li2CO3 or (Bi1/2Li1/2)TiO3 (BLT) added were fabricated by a conventional solid oxide route. The XRD analysis indicates that Li2CO3 introduction leads to the increasing of fraction of tetragonal phase while the BLT introduction does in a reverse tendency. Meanwhile, the depolarization temperature Td of Li2CO3-added BNKB ceramics was enhanced obviously while that of BLT-added BNKB ceramics went down as the addition amount increased. The similarity in variation of the phase structure and the Td of BNKB ceramics reveals the nature of Li+ introduction source on phase structure in BNKB ceramics.

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Periodical:

Advanced Materials Research (Volume 177)

Pages:

215-218

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.177.215

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Online since:

December 2010

Authors:

Na Lei, Man Kang Zhu, Long Fei Wang, Peng Yang, Yu Dong Hou, Hui Yan

Keywords:

(Bi_1/2Na_1/2)TiO₃, Depolarization Temperature, Lead-Free Ferroelectrics, Oxide Additive

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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